1 code implementation • 11 Oct 2021 • Hendrik Schröter, Alberto N. Escalante-B., Tobias Rosenkranz, Andreas Maier
In this work, we propose DeepFilterNet, a two stage speech enhancement framework utilizing deep filtering.
1 code implementation • 11 May 2022 • Hendrik Schröter, Alberto N. Escalante-B., Tobias Rosenkranz, Andreas Maier
This makes the algorithm applicable to run on embedded devices in real-time.
1 code implementation • 14 May 2023 • Hendrik Schröter, Tobias Rosenkranz, Alberto N. Escalante-B., Andreas Maier
Multi-frame algorithms for single-channel speech enhancement are able to take advantage from short-time correlations within the speech signal.
Ranked #10 on Speech Enhancement on VoiceBank + DEMAND
1 code implementation • 14 May 2023 • Hendrik Schröter, Tobias Rosenkranz, Alberto N. Escalante-B., Andreas Maier
Alternatively, the complex filter can be estimated via an MF minimum variance distortionless response (MVDR), or MF Wiener filter (WF).
2 code implementations • 22 Mar 2018 • Bastian Bier, Mathias Unberath, Jan-Nico Zaech, Javad Fotouhi, Mehran Armand, Greg Osgood, Nassir Navab, Andreas Maier
In this work, we present a method to automatically detect anatomical landmarks in X-ray images independent of the viewing direction.
1 code implementation • 8 Dec 2019 • Vincent Christlein, Anguelos Nicolaou, Mathias Seuret, Dominique Stutzmann, Andreas Maier
This competition investigates the performance of large-scale retrieval of historical document images based on writing style.
2 code implementations • 12 Aug 2019 • Christian Marzahl, Marc Aubreville, Christof A. Bertram, Jason Stayt, Anne-Katherine Jasensky, Florian Bartenschlager, Marco Fragoso-Garcia, Ann K. Barton, Svenja Elsemann, Samir Jabari, Jens Krauth, Prathmesh Madhu, Jörn Voigt, Jenny Hill, Robert Klopfleisch, Andreas Maier
Additionally, we evaluated object detection methods on a novel data set of 17 completely annotated cytology whole slide images (WSI) containing 78, 047 hemosiderophages.
2 code implementations • 30 Apr 2020 • Christian Marzahl, Marc Aubreville, Christof A. Bertram, Jennifer Maier, Christian Bergler, Christine Kröger, Jörn Voigt, Katharina Breininger, Robert Klopfleisch, Andreas Maier
In many research areas, scientific progress is accelerated by multidisciplinary access to image data and their interdisciplinary annotation.
2 code implementations • 24 Mar 2020 • Martin Mayr, Martin Stumpf, Anguelos Nicolaou, Mathias Seuret, Andreas Maier, Vincent Christlein
Then, a method for online handwriting synthesis is used to produce a new realistic-looking text primed with the online input sequence.
1 code implementation • 7 Feb 2018 • Marc Aubreville, Christof Bertram, Robert Klopfleisch, Andreas Maier
It provides single-click annotations as well as a blind mode for multi-annotations, where the expert is directly shown the microscopy image containing the cells that he has not yet rated.
1 code implementation • 2 Nov 2022 • Fabian Wagner, Mareike Thies, Laura Pfaff, Oliver Aust, Sabrina Pechmann, Daniela Weidner, Noah Maul, Maximilian Rohleder, Mingxuan Gu, Jonas Utz, Felix Denzinger, Andreas Maier
In this work, we present an end-to-end trainable CT reconstruction pipeline that contains denoising operators in both the projection and the image domain and that are optimized simultaneously without requiring ground-truth high-dose CT data.
2 code implementations • 6 Dec 2021 • Lukas Bommes, Mathis Hoffmann, Claudia Buerhop-Lutz, Tobias Pickel, Jens Hauch, Christoph Brabec, Andreas Maier, Ian Marius Peters
Instead, we frame fault detection as more realistic unsupervised domain adaptation problem where we train on labelled data of one source PV plant and make predictions on another target plant.
3 code implementations • 10 May 2023 • Sebastian Lobentanzer, Shaohong Feng, The BioChatter Consortium, Andreas Maier, Cankun Wang, Jan Baumbach, Nils Krehl, Qin Ma, Julio Saez-Rodriguez
Current-generation Large Language Models (LLMs) have stirred enormous interest in recent months, yielding great potential for accessibility and automation, while simultaneously posing significant challenges and risk of misuse.
1 code implementation • 25 Jan 2022 • Fabian Wagner, Mareike Thies, Mingxuan Gu, Yixing Huang, Sabrina Pechmann, Mayank Patwari, Stefan Ploner, Oliver Aust, Stefan Uderhardt, Georg Schett, Silke Christiansen, Andreas Maier
Due to the extremely low number of trainable parameters with well-defined effect, prediction reliance and data integrity is guaranteed at any time in the proposed pipelines, in contrast to most other deep learning-based denoising architectures.
1 code implementation • CVPR 2023 • Karthik Shetty, Annette Birkhold, Srikrishna Jaganathan, Norbert Strobel, Markus Kowarschik, Andreas Maier, Bernhard Egger
Current techniques directly regress the shape, pose, and translation of a parametric model from an input image through a non-linear mapping with minimal flexibility to any external influences.
Ranked #3 on 3D Human Pose Estimation on 3DPW (using extra training data)
1 code implementation • 20 Mar 2019 • Lukas Folle, Sulaiman Vesal, Nishant Ravikumar, Andreas Maier
Tissue loss in the hippocampi has been heavily correlated with the progression of Alzheimer's Disease (AD).
1 code implementation • 28 Jun 2018 • Maximilian Seitzer, Guang Yang, Jo Schlemper, Ozan Oktay, Tobias Würfl, Vincent Christlein, Tom Wong, Raad Mohiaddin, David Firmin, Jennifer Keegan, Daniel Rueckert, Andreas Maier
In addition, we introduce a semantic interpretability score, measuring the visibility of the region of interest in both ground truth and reconstructed images, which allows us to objectively quantify the usefulness of the image quality for image post-processing and analysis.
1 code implementation • 15 Mar 2021 • Sulaiman Vesal, Mingxuan Gu, Ronak Kosti, Andreas Maier, Nishant Ravikumar
The proposed method is based on adversarial learning and adapts network features between source and target domain in different spaces.
1 code implementation • 24 Aug 2020 • Marc Aubreville, Christof A. Bertram, Taryn A. Donovan, Christian Marzahl, Andreas Maier, Robert Klopfleisch
We achieved a mean F1-score of 0. 791 on the test set and of up to 0. 696 on a human breast cancer dataset.
1 code implementation • 21 May 2021 • Alexander Mattick, Martin Mayr, Mathias Seuret, Andreas Maier, Vincent Christlein
As of recent generative adversarial networks have allowed for big leaps in the realism of generated images in diverse domains, not the least of which being handwritten text generation.
1 code implementation • MICCAI Workshop COMPAY 2021 • Christian Marzahl, Frauke Wilm, Christine Kröger, Franz F Dressler, Lars Tharun, Sven Perner, Christof Bertram, Jörn Voigt, Robert Klopfleisch, Andreas Maier, Marc Aubreville, Katharina Breininger
The registration of whole slide images (WSIs) provides the basis for many subsequent processing steps in digital pathology.
1 code implementation • 14 Aug 2019 • Vincent Christlein, Lukas Spranger, Mathias Seuret, Anguelos Nicolaou, Pavel Král, Andreas Maier
Global pooling layers are an essential part of Convolutional Neural Networks (CNN).
1 code implementation • 17 Oct 2022 • Aline Sindel, Andreas Maier, Vincent Christlein
Facial landmark detection plays an important role for the similarity analysis in artworks to compare portraits of the same or similar artists.
2 code implementations • 30 Mar 2021 • Marc Aubreville, Christof Bertram, Mitko Veta, Robert Klopfleisch, Nikolas Stathonikos, Katharina Breininger, Natalie ter Hoeve, Francesco Ciompi, Andreas Maier
Hypothesizing that the scanner device plays a decisive role in this effect, we evaluated the susceptibility of a standard mitosis detection approach to the domain shift introduced by using a different whole slide scanner.
1 code implementation • 28 Jan 2022 • Mingxuan Gu, Sulaiman Vesal, Ronak Kosti, Andreas Maier
This restricts the development of UDA methods for new domains.
1 code implementation • 10 Jul 2020 • Christof A. Bertram, Mitko Veta, Christian Marzahl, Nikolas Stathonikos, Andreas Maier, Robert Klopfleisch, Marc Aubreville
To date, some datasets on mitotic figures are available and were used for development of promising deep learning-based algorithms.
1 code implementation • 1 Sep 2019 • Mario Amrehn, Stefan Steidl, Reinier Kortekaas, Maddalena Strumia, Markus Weingarten, Markus Kowarschik, Andreas Maier
Nevertheless, publications introducing novel interactive segmentation systems (ISS) often lack an objective comparison of HCI aspects.
1 code implementation • 23 Jun 2020 • Hendrik Schröter, Tobias Rosenkranz, Alberto N. Escalante-B., Andreas Maier
Based on the published test set, we outperform the baseline w. r. t.
1 code implementation • 26 Apr 2020 • Zhaohan Xiong, Qing Xia, Zhiqiang Hu, Ning Huang, Cheng Bian, Yefeng Zheng, Sulaiman Vesal, Nishant Ravikumar, Andreas Maier, Xin Yang, Pheng-Ann Heng, Dong Ni, Caizi Li, Qianqian Tong, Weixin Si, Elodie Puybareau, Younes Khoudli, Thierry Geraud, Chen Chen, Wenjia Bai, Daniel Rueckert, Lingchao Xu, Xiahai Zhuang, Xinzhe Luo, Shuman Jia, Maxime Sermesant, Yashu Liu, Kuanquan Wang, Davide Borra, Alessandro Masci, Cristiana Corsi, Coen de Vente, Mitko Veta, Rashed Karim, Chandrakanth Jayachandran Preetha, Sandy Engelhardt, Menyun Qiao, Yuanyuan Wang, Qian Tao, Marta Nunez-Garcia, Oscar Camara, Nicolo Savioli, Pablo Lamata, Jichao Zhao
Segmentation of cardiac images, particularly late gadolinium-enhanced magnetic resonance imaging (LGE-MRI) widely used for visualizing diseased cardiac structures, is a crucial first step for clinical diagnosis and treatment.
1 code implementation • 7 Feb 2022 • Aline Sindel, Abner Hernandez, Seung Hee Yang, Vincent Christlein, Andreas Maier
With the increasing number of online learning material in the web, search for specific content in lecture videos can be time consuming.
1 code implementation • 5 Dec 2022 • Mareike Thies, Fabian Wagner, Noah Maul, Lukas Folle, Manuela Meier, Maximilian Rohleder, Linda-Sophie Schneider, Laura Pfaff, Mingxuan Gu, Jonas Utz, Felix Denzinger, Michael Manhart, Andreas Maier
The cost function is parameterized by a trained neural network which regresses an image quality metric from the motion affected reconstruction alone.
1 code implementation • 19 Aug 2021 • Christian Marzahl, Jenny Hill, Jason Stayt, Dorothee Bienzle, Lutz Welker, Frauke Wilm, Jörn Voigt, Marc Aubreville, Andreas Maier, Robert Klopfleisch, Katharina Breininger, Christof A. Bertram
Pulmonary hemorrhage (P-Hem) occurs among multiple species and can have various causes.
1 code implementation • 15 Feb 2018 • Aline Sindel, Katharina Breininger, Johannes Käßer, Andreas Hess, Andreas Maier, Thomas Köhler
We customize features suitable for volumetric MRI to train the random forest and propose a median tree ensemble for robust regression.
1 code implementation • 6 May 2021 • Lukas Folle, Timo Meinderink, David Simon, Anna-Maria Liphardt, Gerhard Krönke, Georg Schett, Arnd Kleyer, Andreas Maier
Based on a dataset of HR-pQCT volumes with MC measurements for 541 patients with arthritis, a segmentation network is trained.
1 code implementation • 27 Jan 2022 • Frauke Wilm, Marco Fragoso, Christian Marzahl, Jingna Qiu, Chloé Puget, Laura Diehl, Christof A. Bertram, Robert Klopfleisch, Andreas Maier, Katharina Breininger, Marc Aubreville
Due to morphological similarities, the differentiation of histologic sections of cutaneous tumors into individual subtypes can be challenging.
1 code implementation • 31 Mar 2020 • Prathmesh Madhu, Ronak Kosti, Lara Mührenberg, Peter Bell, Andreas Maier, Vincent Christlein
We present experiments and analysis on three different models and show that the model trained on domain related data gives the best performance for recognizing character.
1 code implementation • 29 Sep 2023 • Yixing Huang, Christoph Bert, Ahmed Gomaa, Rainer Fietkau, Andreas Maier, Florian Putz
Incremental transfer learning, which combines peer-to-peer federated learning and domain incremental learning, can overcome the data privacy issue and meanwhile preserve model performance by using continual learning techniques.
1 code implementation • 24 Dec 2020 • Sulaiman Vesal, Mingxuan Gu, Andreas Maier, Nishant Ravikumar
In this paper, we propose a spatio-temporal multi-task learning approach to obtain a complete set of measurements quantifying cardiac LV morphology, regional-wall thickness (RWT), and additionally detecting the cardiac phase cycle (systole and diastole) for a given 3D Cine-magnetic resonance (MR) image sequence.
1 code implementation • 11 Jan 2023 • Frauke Wilm, Marco Fragoso, Christof A. Bertram, Nikolas Stathonikos, Mathias Öttl, Jingna Qiu, Robert Klopfleisch, Andreas Maier, Katharina Breininger, Marc Aubreville
Additionally, to quantify the inherent scanner-induced domain shift, we train a tumor segmentation network on each scanner subset and evaluate the performance both in- and cross-domain.
1 code implementation • 1 Mar 2023 • Susu Sun, Stefano Woerner, Andreas Maier, Lisa M. Koch, Christian F. Baumgartner
Furthermore, as we show in this paper, current explanation techniques do not perform adequately in the multi-label scenario, in which multiple medical findings may co-occur in a single image.
1 code implementation • 13 Dec 2023 • Mikhail Kulyabin, Aleksei Zhdanov, Anastasia Nikiforova, Andrey Stepichev, Anna Kuznetsova, Mikhail Ronkin, Vasilii Borisov, Alexander Bogachev, Sergey Korotkich, Paul A Constable, Andreas Maier
Optical coherence tomography (OCT) is a non-invasive imaging technique with extensive clinical applications in ophthalmology.
1 code implementation • 8 Sep 2020 • Prathmesh Madhu, Tilman Marquart, Ronak Kosti, Peter Bell, Andreas Maier, Vincent Christlein
These compositions are useful in analyzing the interactions in an image to study artists and their artworks.
1 code implementation • 12 Apr 2023 • Thomas Wimmer, Vladimir Golkov, Hoai Nam Dang, Moritz Zaiss, Andreas Maier, Daniel Cremers
The ability of convolutional neural networks (CNNs) to recognize objects regardless of their position in the image is due to the translation-equivariance of the convolutional operation.
1 code implementation • 30 Sep 2020 • Mathis Hoffmann, Claudia Buerhop-Lutz, Luca Reeb, Tobias Pickel, Thilo Winkler, Bernd Doll, Tobias Würfl, Ian Marius Peters, Christoph Brabec, Andreas Maier, Vincent Christlein
However, knowledge of the power at maximum power point is important as well, since drops in the power of a single module can affect the performance of an entire string.
1 code implementation • 10 Dec 2020 • Prathmesh Madhu, Angel Villar-Corrales, Ronak Kosti, Torsten Bendschus, Corinna Reinhardt, Peter Bell, Andreas Maier, Vincent Christlein
(2) To improve the already strong results further, we created a small dataset (ClassArch) consisting of ancient Greek vase paintings from the 6-5th century BCE with person and pose annotations.
1 code implementation • 8 Apr 2022 • Tobias Weise, Philipp Klumpp, Kubilay Can Demir, Andreas Maier, Elmar Noeth, Bjoern Heismann, Maria Schuster, Seung Hee Yang
Our results are among the first to show that disentangled speech representations can be used for automatic pathological speech intelligibility assessment, resulting in a reference speaker pair invariant method, applicable in scenarios with only few utterances available.
1 code implementation • 15 Mar 2024 • Yipeng Sun, Yixing Huang, Linda-Sophie Schneider, Mareike Thies, Mingxuan Gu, Siyuan Mei, Siming Bayer, Andreas Maier
However, the choice of loss function profoundly affects the reconstructed images.
1 code implementation • 13 Apr 2020 • Christian Marzahl, Christof A. Bertram, Marc Aubreville, Anne Petrick, Kristina Weiler, Agnes C. Gläsel, Marco Fragoso, Sophie Merz, Florian Bartenschlager, Judith Hoppe, Alina Langenhagen, Anne Jasensky, Jörn Voigt, Robert Klopfleisch, Andreas Maier
However, a significant percentage of the deliberately introduced false labels was not identified by the experts.
Human-Computer Interaction Image and Video Processing
1 code implementation • 15 Mar 2021 • Kai Packhäuser, Sebastian Gündel, Nicolas Münster, Christopher Syben, Vincent Christlein, Andreas Maier
Our verification system is able to identify whether two frontal chest X-ray images are from the same person with an AUC of 0. 9940 and a classification accuracy of 95. 55%.
1 code implementation • 22 Dec 2021 • Yixing Huang, Christoph Bert, Philipp Sommer, Benjamin Frey, Udo Gaipl, Luitpold V. Distel, Thomas Weissmann, Michael Uder, Manuel A. Schmidt, Arnd Dörfler, Andreas Maier, Rainer Fietkau, Florian Putz
To improve brain metastasis detection performance with deep learning, a custom detection loss called volume-level sensitivity-specificity (VSS) is proposed, which rates individual metastasis detection sensitivity and specificity in (sub-)volume levels.
1 code implementation • 23 Sep 2022 • Kai Packhäuser, Sebastian Gündel, Florian Thamm, Felix Denzinger, Andreas Maier
Therefore, there is an urgent need to obfuscate the biometric information appearing in the images.
1 code implementation • 9 Apr 2024 • Nico Meyer, Christian Ufrecht, Maniraman Periyasamy, Axel Plinge, Christopher Mutschler, Daniel D. Scherer, Andreas Maier
Quantum computer simulation software is an integral tool for the research efforts in the quantum computing community.
1 code implementation • 12 Feb 2019 • Marc Aubreville, Christof A. Bertram, Christian Marzahl, Corinne Gurtner, Martina Dettwiler, Anja Schmidt, Florian Bartenschlager, Sophie Merz, Marco Fragoso, Olivia Kershaw, Robert Klopfleisch, Andreas Maier
Manual count of mitotic figures, which is determined in the tumor region with the highest mitotic activity, is a key parameter of most tumor grading schemes.
1 code implementation • 20 Oct 2020 • Mathias Seuret, Anguelos Nicolaou, Dominique Stutzmann, Andreas Maier, Vincent Christlein
In particular, we investigate the performance of large-scale retrieval of historical document fragments in terms of style and writer identification.
2 code implementations • 5 Jan 2021 • Christof A. Bertram, Taryn A. Donovan, Marco Tecilla, Florian Bartenschlager, Marco Fragoso, Frauke Wilm, Christian Marzahl, Katharina Breininger, Andreas Maier, Robert Klopfleisch, Marc Aubreville
For this study, we created the first open source data-set with 19, 983 annotations of BiNC and 1, 416 annotations of MuNC in 32 histological whole slide images of ccMCT.
1 code implementation • 16 Feb 2021 • Amirabbas Davari, Saahil Islam, Thorsten Seehaus, Matthias Braun, Andreas Maier, Vincent Christlein
Moreover, we propose an improvement to the distance map-based binary cross-entropy (BCE) loss function.
1 code implementation • MICCAI Workshop COMPAY 2021 • Jonathan Ganz, Tobias Kirsch, Lucas Hoffmann, Christof A. Bertram, Christoph Hoffmann, Andreas Maier, Katharina Breininger, Ingmar Blümcke, Samir Jabari, Marc Aubreville
In a first approach, image patches are sampled from this region and regression is based on morphological features encoded by a ResNet-based network.
1 code implementation • 13 Apr 2022 • Soroosh Tayebi Arasteh, Tobias Weise, Maria Schuster, Elmar Noeth, Andreas Maier, Seung Hee Yang
Navigating the challenges of data-driven speech processing, one of the primary hurdles is accessing reliable pathological speech data.
1 code implementation • 6 Feb 2023 • Fei Wu, Nora Gourmelon, Thorsten Seehaus, Jianlin Zhang, Matthias Braun, Andreas Maier, Vincent Christlein
are present in the data), which exacerbates the difficulty of accurate segmentation.
Ranked #1 on Calving Front Delineation In Synthetic Aperture Radar Imagery With Fixed Training Amount on CaFFe
Calving Front Delineation In Synthetic Aperture Radar Imagery With Fixed Training Amount Segmentation
1 code implementation • 24 Apr 2023 • Yixing Huang, Ahmed Gomaa, Sabine Semrau, Marlen Haderlein, Sebastian Lettmaier, Thomas Weissmann, Johanna Grigo, Hassen Ben Tkhayat, Benjamin Frey, Udo S. Gaipl, Luitpold V. Distel, Andreas Maier, Rainer Fietkau, Christoph Bert, Florian Putz
The potential of large language models in medicine for education and decision making purposes has been demonstrated as they achieve decent scores on medical exams such as the United States Medical Licensing Exam (USMLE) and the MedQA exam.
no code implementations • 18 Jun 2018 • Sergiu Deitsch, Claudia Buerhop-Lutz, Evgenii Sovetkin, Ansgar Steland, Andreas Maier, Florian Gallwitz, Christian Riess
Automated segmentation of cells is therefore a key step in automating the visual inspection workflow.
no code implementations • 14 Jun 2018 • Xia Zhong, Mario Amrehn, Nishant Ravikumar, Shuqing Chen, Norbert Strobel, Annette Birkhold, Markus Kowarschik, Rebecca Fahrig, Andreas Maier
From this we conclude that our method is robust, and we believe that our method can be successfully applied to many more applications, in particular, in the interventional imaging space.
no code implementations • 29 Jan 2018 • AmirAbbas Davari, Nikolaos Sakaltras, Armin Haeberle, Sulaiman Vesal, Vincent Christlein, Andreas Maier, Christian Riess
In this work, we propose an image processing pipeline that operates on hyperspectral images to separate such layers.
no code implementations • 3 Nov 2017 • Maike P. Stoeve, Marc Aubreville, Nicolai Oetter, Christian Knipfer, Helmut Neumann, Florian Stelzle, Andreas Maier
Confocal Laser Endomicroscopy (CLE), an optical imaging technique allowing non-invasive examination of the mucosa on a (sub)cellular level, has proven to be a valuable diagnostic tool in gastroenterology and shows promising results in various anatomical regions including the oral cavity.
no code implementations • 30 Apr 2018 • Tobias Geimer, Paul Keall, Katharina Breininger, Vincent Caillet, Michelle Dunbar, Christoph Bert, Andreas Maier
Data-driven respiratory signal extraction from rotational X-ray scans is a challenge as angular effects overlap with respiration-induced change in the scene.
no code implementations • 11 Apr 2018 • Bernhard Stimpel, Christopher Syben, Tobias Würfl, Katharina Breininger, Katrin Mentl, Jonathan M. Lommen, Arnd Dörfler, Andreas Maier
Our approach is capable of creating X-ray projection images with natural appearance.
no code implementations • 20 Oct 2017 • Bernhard Stimpel, Christopher Syben, Tobias Würfl, Katrin Mentl, Arnd Dörfler, Andreas Maier
The perceptual-loss showed to be able to preserve most of the high-frequency details in the projection images and, thus, is recommended for the underlying task and similar problems.
no code implementations • 22 Mar 2018 • Jonas Hajek, Mathias Unberath, Javad Fotouhi, Bastian Bier, Sing Chun Lee, Greg Osgood, Andreas Maier, Mehran Armand, Nassir Navab
In percutaneous orthopedic interventions the surgeon attempts to reduce and fixate fractures in bony structures.
no code implementations • 26 Feb 2018 • Sulaiman Vesal, Nishant Ravikumar, Amirabbas Davari, Stephan Ellmann, Andreas Maier
Breast cancer is one of the leading causes of mortality in women.
Classification Classification Of Breast Cancer Histology Images +3
no code implementations • 23 Feb 2018 • Sulaiman Vesal, Nishant Ravikumar, Stephan Ellman, Andreas Maier
Accurate segmentation of breast lesions is a crucial step in evaluating the characteristics of tumors.
no code implementations • 19 Dec 2017 • Yixing Huang, Oliver Taubmann, Xiaolin Huang, Viktor Haase, Guenter Lauritsch, Andreas Maier
Hence, the main purpose of this paper is to reduce streak artifacts at various scales.
no code implementations • 21 Dec 2017 • Vincent Christlein, Andreas Maier
The encoding of local features is an essential part for writer identification and writer retrieval.
no code implementations • 12 Jan 2018 • Felix Horger, Tobias Würfl, Vincent Christlein, Andreas Maier
Our model has high sampling efficiency and is easily applied to any probability distribution, without the need of further analytical or numerical calculations.
no code implementations • 14 Dec 2017 • Sulaiman Vesal, Andres Diaz-Pinto, Nishant Ravikumar, Stephan Ellmann, Amirabbas Davari, Andreas Maier
The proposed method achieved an average Dice coefficient of 0. 7808$\pm$0. 1729 and Jaccard index of 0. 6704$\pm$0. 2167.
no code implementations • 13 Dec 2017 • AmirAbbas Davari, Erchan Aptoula, Berrin Yanikoglu, Andreas Maier, Christian Riess
This synthetic data is sampled from a GMM fitted to each class of the limited training data.
Classification Of Hyperspectral Images General Classification +1
no code implementations • 12 Dec 2017 • AmirAbbas Davari, Tobias Lindenberger, Armin Häberle, Vincent Christlein, Andreas Maier, Christian Riess
In this work, we conducted a survey on different registration algorithms and investigated their suitability for hyperspectral historical image registration applications.
no code implementations • 10 Dec 2017 • AmirAbbas Davari, Armin Häberle, Vincent Christlein, Andreas Maier, Christian Riess
High-resolution imaging has delivered new prospects for detecting the material composition and structure of cultural treasures.
no code implementations • 1 Dec 2017 • Andreas Maier, Frank Schebesch, Christopher Syben, Tobias Würfl, Stefan Steidl, Jang-Hwan Choi, Rebecca Fahrig
We demonstrate that use of known transforms is able to change maximal error bounds.
no code implementations • 20 Nov 2017 • Mario Amrehn, Stefan Steidl, Markus Kowarschik, Andreas Maier
In interactive medical image segmentation, anatomical structures are extracted from reconstructed volumetric images.
no code implementations • 9 Nov 2017 • Weilin Fu, Katharina Breininger, Tobias Würfl, Nishant Ravikumar, Roman Schaffert, Andreas Maier
In this paper, we reformulate the conventional 2-D Frangi vesselness measure into a pre-weighted neural network ("Frangi-Net"), and illustrate that the Frangi-Net is equivalent to the original Frangi filter.
no code implementations • 17 Oct 2017 • Christopher Syben, Bernhard Stimpel, Katharina Breininger, Tobias Würfl, Rebecca Fahrig, Arnd Dörfler, Andreas Maier
In this paper, we present substantial evidence that a deep neural network will intrinsically learn the appropriate way to discretize the ideal continuous reconstruction filter.
no code implementations • 15 Oct 2017 • Shuqing Chen, Holger Roth, Sabrina Dorn, Matthias May, Alexander Cavallaro, Michael M. Lell, Marc Kachelrieß, Hirohisa ODA, Kensaku MORI, Andreas Maier
In this paper, we proposed a 3D FCN based method for automatic multi-organ segmentation in DECT.
no code implementations • 11 Sep 2017 • Mario Amrehn, Sven Gaube, Mathias Unberath, Frank Schebesch, Tim Horz, Maddalena Strumia, Stefan Steidl, Markus Kowarschik, Andreas Maier
Our system builds upon a state-of-the-art fully convolutional artificial neural network (FCN) as well as an active user model for training.
no code implementations • 25 May 2017 • Vincent Christlein, Martin Gropp, Stefan Fiel, Andreas Maier
The focus lies on the ICDAR17 competition dataset on historical document writer identification (Historical-WI).
no code implementations • 26 Jul 2017 • Marc Aubreville, Maximilian Krappmann, Christof Bertram, Robert Klopfleisch, Andreas Maier
The algorithm is able to derive the cell class (mitotic tumor cells, non-mitotic tumor cells and granulocytes) and their position within an image.
no code implementations • 25 Jul 2017 • Marc Aubreville, Miguel Goncalves, Christian Knipfer, Nicolai Oetter, Tobias Wuerfl, Helmut Neumann, Florian Stelzle, Christopher Bohr, Andreas Maier
We find that the network trained on the oral cavity data reaches an accuracy of 89. 45% and an area-under-the-curve (AUC) value of 0. 955, when applied on the vocal cords data.
no code implementations • 5 Mar 2017 • Marc Aubreville, Christian Knipfer, Nicolai Oetter, Christian Jaremenko, Erik Rodner, Joachim Denzler, Christopher Bohr, Helmut Neumann, Florian Stelzle, Andreas Maier
For this work, CLE image sequences (7894 images) from patients diagnosed with OSCC were obtained from 4 specific locations in the oral cavity, including the OSCC lesion.
no code implementations • 3 Jan 2017 • Xiaolin Huang, Yan Xia, Lei Shi, Yixing Huang, Ming Yan, Joachim Hornegger, Andreas Maier
Aiming at overexposure correction for computed tomography (CT) reconstruction, we in this paper propose a mixed one-bit compressive sensing (M1bit-CS) to acquire information from both regular and saturated measurements.
no code implementations • 6 Sep 2016 • Cosmin Bercea, Andreas Maier, Thomas Köhler
Motion estimation across low-resolution frames and the reconstruction of high-resolution images are two coupled subproblems of multi-frame super-resolution.
no code implementations • 10 Feb 2016 • Thomas Köhler, Axel Heinrich, Andreas Maier, Joachim Hornegger, Ralf P. Tornow
The acquisition of high-resolution retinal fundus images with a large field of view (FOV) is challenging due to technological, physiological and economic reasons.
no code implementations • 22 Jan 2016 • Matthias Hoffmann, Christopher Kowalewski, Andreas Maier, Klaus Kurzidim, Norbert Strobel, Joachim Hornegger
Using a combination of both methods, our evaluation on 11 well-contrasted clinical datasets yielded an error of 7. 9+/-6. 3 mm over all frames.
no code implementations • 19 Jun 2018 • Anguelos Nicolaou, Sounak Dey, Vincent Christlein, Andreas Maier, Dimosthenis Karatzas
Embedding data into vector spaces is a very popular strategy of pattern recognition methods.
no code implementations • 20 Jun 2018 • Roman Schaffert, Jian Wang, Peter Fischer, Anja Borsdorf, Andreas Maier
For single-vertebra registration, we achieve an accuracy of 0. 74$\pm$0. 26 mm and highly improved robustness.
no code implementations • 25 Jun 2018 • Sulaiman Vesal, Nishant Ravikumar, Andreas Maier
Early detection and segmentation of skin lesions are crucial for timely diagnosis and treatment, necessary to improve the survival rate of patients.
no code implementations • 22 Jun 2018 • Mathias Unberath, Javad Fotouhi, Jonas Hajek, Andreas Maier, Greg Osgood, Russell Taylor, Mehran Armand, Nassir Navab
For C-arm repositioning to a particular target view, the recorded C-arm pose is restored as a virtual object and visualized in an AR environment, serving as a perceptual reference for the technician.
no code implementations • 9 Jul 2018 • Christopher Syben, Bernhard Stimpel, Jonathan Lommen, Tobias Würfl, Arnd Dörfler, Andreas Maier
The results demonstrate that the proposed method is superior to ray-by-ray interpolation and is able to deliver sharper images using the same amount of parallel-beam input projections which is crucial for interventional applications.
no code implementations • 8 Jul 2018 • Sergiu Deitsch, Vincent Christlein, Stephan Berger, Claudia Buerhop-Lutz, Andreas Maier, Florian Gallwitz, Christian Riess
Both approaches are trained on 1, 968 cells extracted from high resolution EL intensity images of mono- and polycrystalline PV modules.
no code implementations • 24 Jul 2018 • Shahab Zarei, Bernhard Stimpel, Christopher Syben, Andreas Maier
This approach opens the way towards implementation of direct user feedback in deep learning and is applicable for a wide range of application.
no code implementations • 5 Aug 2018 • Sulaiman Vesal, Shreyas Malakarjun Patil, Nishant Ravikumar, Andreas Maier
This underlines the need for an accurate and automatic approach to skin lesion segmentation.
no code implementations • 5 Aug 2018 • Sulaiman Vesal, Nishant Ravikumar, Andreas Maier
We employ a 3D fully convolutional network, with dilated convolutions in the lowest level of the network, and residual connections between encoder blocks to incorporate local and global knowledge.
no code implementations • 17 Sep 2018 • Thomas Köhler, Michel Bätz, Farzad Naderi, André Kaup, Andreas Maier, Christian Riess
One interesting result is that top-performing methods on simulated data may be surpassed by others on real data.
no code implementations • 1 Oct 2018 • Marc Aubreville, Christof A. Bertram, Robert Klopfleisch, Andreas Maier
This map is in a second step used to construct a mitotic activity estimate.
no code implementations • 12 Oct 2018 • Andreas Maier, Christopher Syben, Tobias Lasser, Christian Riess
This paper tries to give a gentle introduction to deep learning in medical image processing, proceeding from theoretical foundations to applications.
no code implementations • 22 Oct 2018 • Marc Aubreville, Christof A. Bertram, Robert Klopfleisch, Andreas Maier
For both approaches, the CNN performs a segmentation of the WSI to assess mitotic activity.
no code implementations • 11 Nov 2018 • Shiyang Hu, Lina Felsner, Andreas Maier, Veronika Ludwig, Gisela Anton, Christian Riess
A key step of the reconstruction algorithm is the inversion of a forward projection model.
no code implementations • 19 Dec 2018 • Mario Amrehn, Firas Mualla, Elli Angelopoulou, Stefan Steidl, Andreas Maier
In this work, a balanced random forest approach for WEKA is proposed.
no code implementations • LREC 2014 • Tobias Bocklet, Andreas Maier, Korbinian Riedhammer, Ulrich Eysholdt, Elmar N{\"o}th
In this paper we describe Erlangen-CLP, a large speech database of children with Cleft Lip and Palate.
no code implementations • 24 Feb 2019 • Marc Aubreville, Miguel Goncalves, Christian Knipfer, Nicolai Oetter, Helmut Neumann, Florian Stelzle, Christopher Bohr, Andreas Maier
Squamous Cell Carcinoma (SCC) is the most common cancer type of the epithelium and is often detected at a late stage.
no code implementations • 15 May 2019 • Sebastian Guendel, Florin C. Ghesu, Sasa Grbic, Eli Gibson, Bogdan Georgescu, Andreas Maier, Dorin Comaniciu
Chest X-ray (CXR) is the most common X-ray examination performed in daily clinical practice for the diagnosis of various heart and lung abnormalities.
no code implementations • 19 May 2019 • Sulaiman Vesal, Nishant Ravikumar, Andreas Maier
Automatic segmentation of organs-at-risk (OAR) in computed tomography (CT) is an essential part of planning effective treatment strategies to combat lung and esophageal cancer.
no code implementations • 1 Jul 2019 • Ahmed Mustafa, Arijit Biswas, Christian Bergler, Julia Schottenhamml, Andreas Maier
Recently, autoregressive deep generative models such as WaveNet and SampleRNN have been used as speech vocoders to scale up the perceptual quality of the reconstructed signals without increasing the coding rate.
no code implementations • 9 Jul 2019 • Elisabeth Hoppe, Florian Thamm, Gregor Körzdörfer, Christopher Syben, Franziska Schirrmacher, Mathias Nittka, Josef Pfeuffer, Heiko Meyer, Andreas Maier
Although the acquisition is highly accelerated, the state-of-the-art reconstruction suffers from long computation times: Template matching methods are used to find the most similar signal to the measured one by comparing it to pre-simulated signals of possible parameter combinations in a discretized dictionary.
no code implementations • 14 Jul 2019 • Weilin Fu, Katharina Breininger, Roman Schaffert, Nishant Ravikumar, Andreas Maier
We start with a high-performance U-Net and show by step-by-step conversion that we are able to divide the network into modules of known operators.
no code implementations • 24 Jul 2019 • Florian Kordon, Peter Fischer, Maxim Privalov, Benedict Swartman, Marc Schnetzke, Jochen Franke, Ruxandra Lasowski, Andreas Maier, Holger Kunze
A deep multi-task stacked hourglass network is trained on 149 conventional lateral X-ray images to jointly localize two femoral landmarks, to predict a region of interest for the posterior femoral cortex tangent line, and to perform semantic segmentation of the femur, patella, tibia, and fibula with adaptive task complexity weighting.
no code implementations • 19 Aug 2019 • Yixing Huang, Alexander Preuhs, Guenter Lauritsch, Michael Manhart, Xiaolin Huang, Andreas Maier
Robustness of deep learning methods for limited angle tomography is challenged by two major factors: a) due to insufficient training data the network may not generalize well to unseen data; b) deep learning methods are sensitive to noise.
no code implementations • 21 Aug 2019 • Sulaiman Vesal, Nishant Ravikumar, Andreas Maier
We first train an encoder-decoder CNN on T2-weighted and balanced-Steady State Free Precession (bSSFP) MR images with pixel-level annotation and fine-tune the same network with a limited number of Late Gadolinium Enhanced-MR (LGE-MR) subjects, to adapt the domain features.
no code implementations • 13 Sep 2019 • Elisabeth Hoppe, Florian Thamm, Gregor Körzdörfer, Christopher Syben, Franziska Schirrmacher, Mathias Nittka, Josef Pfeuffer, Heiko Meyer, Andreas Maier
Magnetic Resonance Fingerprinting (MRF) is an imaging technique acquiring unique time signals for different tissues.
no code implementations • 19 Sep 2019 • Jan-Nico Zaech, Cong Gao, Bastian Bier, Russell Taylor, Andreas Maier, Nassir Navab, Mathias Unberath
Metal artifacts in computed tomography (CT) arise from a mismatch between physics of image formation and idealized assumptions during tomographic reconstruction.
no code implementations • 9 Oct 2019 • Alexander Preuhs, Michael Manhart, Philipp Roser, Bernhard Stimpel, Christopher Syben, Marios Psychogios, Markus Kowarschik, Andreas Maier
Diagnostic stroke imaging with C-arm cone-beam computed tomography (CBCT) enables reduction of time-to-therapy for endovascular procedures.
no code implementations • 4 Nov 2019 • Lei Gao, Yixing Huang, Andreas Maier
Background candidate images are obtained from input raw images with the masks.
no code implementations • 4 Nov 2019 • Yixing Huang, Lei Gao, Alexander Preuhs, Andreas Maier
In computed tomography (CT), data truncation is a common problem.
no code implementations • 6 Nov 2019 • Weilin Fu, Katharina Breininger, Zhaoya Pan, Andreas Maier
Results show that for retinal vessel segmentation on DRIVE database, U-Net does not degenerate until surprisingly acute conditions: one level, one filter in convolutional layers, and one training sample.
no code implementations • 12 Nov 2019 • Prashant Chaudhari, Franziska Schirrmacher, Andreas Maier, Christian Riess, Thomas Köhler
As such, it is end-to-end trainable, circumvents the use of hand-crafted and potentially complex algorithms, and mitigates error propagation.
no code implementations • 18 Nov 2019 • Bernhard Stimpel, Christopher Syben, Franziska Schirrmacher, Philipp Hoelter, Arnd Dörfler, Andreas Maier
In medical imaging, this lack of comprehensibility of the results is a sensitive issue.
no code implementations • 19 Nov 2019 • Bernhard Stimpel, Christopher Syben, Tobias Würfl, Katharina Breininger, Philipp Hoelter, Arnd Dörfler, Andreas Maier
Additionally, a weighting scheme in the loss computation that favors high-frequency structures is proposed to focus on the important details and contours in projection imaging.
no code implementations • 25 Nov 2019 • Marc Aubreville, Christof A. Bertram, Samir Jabari, Christian Marzahl, Robert Klopfleisch, Andreas Maier
We were able to show that domain adversarial training considerably improves accuracy when applying mitotic figure classification learned from the canine on the human data sets (up to +12. 8% in accuracy) and is thus a helpful method to transfer knowledge from existing data sets to new tissue types and species.
no code implementations • 29 Nov 2019 • Alexander Preuhs, Michael Manhart, Philipp Roser, Bernhard Stimpel, Christopher Syben, Marios Psychogios, Markus Kowarschik, Andreas Maier
To adapt the backprojection operation accordingly, a motion estimation strategy is necessary.
no code implementations • 3 Dec 2019 • Jennifer Maier, Luis Carlos Rivera Monroy, Christopher Syben, Yejin Jeon, Jang-Hwan Choi, Mary Elizabeth Hall, Marc Levenston, Garry Gold, Rebecca Fahrig, Andreas Maier
Analyzing knee cartilage thickness and strain under load can help to further the understanding of the effects of diseases like Osteoarthritis.
no code implementations • 4 Dec 2019 • Sebastian Guendel, Andreas Maier
With a simple one-class problem, the classification of tuberculosis, we measure the performance on a clean evaluation set when training with label-corrupt data.
no code implementations • 11 Dec 2019 • Dominik Eckert, Sulaiman Vesal, Ludwig Ritschl, Steffen Kappler, Andreas Maier
In this study, we propose a deep learning method based on Convolutional Neural Networks (CNNs) for mammogram denoising to improve the image quality.
no code implementations • 12 Dec 2019 • Felix Denzinger, Michael Wels, Nishant Ravikumar, Katharina Breininger, Anika Reidelshöfer, Joachim Eckert, Michael Sühling, Axel Schmermund, Andreas Maier
A second approach is based on deep learning and relies on centerline extraction as sole prerequisite.
no code implementations • 13 Dec 2019 • Felix Denzinger, Michael Wels, Katharina Breininger, Anika Reidelshöfer, Joachim Eckert, Michael Sühling, Axel Schmermund, Andreas Maier
Analysing coronary artery plaque segments with respect to their functional significance and therefore their influence to patient management in a non-invasive setup is an important subject of current research.
no code implementations • 19 Dec 2019 • Siming Bayer, Xia Zhong, Weilin Fu, Nishant Ravikumar, Andreas Maier
In this work, we propose an imitation learning framework for the registration of 2D color funduscopic images for a wide range of applications such as disease monitoring, image stitching and super-resolution.
no code implementations • 5 Jan 2020 • Nadine Kuhnert, Lea Pflüger, Andreas Maier
The other data level uses matrices which represent the overall coil condition and feeds a different neural network.
no code implementations • 5 Jan 2020 • Nadine Kuhnert, Andreas Maier
We aim to model unknown file processing.
no code implementations • 4 Jan 2020 • Jalil Ahmed, Sulaiman Vesal, Felix Durlak, Rainer Kaergel, Nishant Ravikumar, Martine Remy-Jardin, Andreas Maier
Chronic obstructive pulmonary disease (COPD) is a lung disease that is not fully reversible and one of the leading causes of morbidity and mortality in the world.
no code implementations • 5 Jan 2020 • Nadine Kuhnert, Lea Pflüger, Andreas Maier
Thus, we used image features and their variation over time to predict coil damage.
no code implementations • 8 Jan 2020 • Yixing Huang, Shengxiang Wang, Yong Guan, Andreas Maier
Particularly, the U-Net, the state-of-the-art neural network in biomedical imaging, is trained from synthetic ellipsoid data and multi-category data to reduce artifacts in filtered back-projection (FBP) reconstruction images.
no code implementations • 12 Jan 2020 • Siming Bayer, Ute Spiske, Jie Luo, Tobias Geimer, William M. Wells III, Martin Ostermeier, Rebecca Fahrig, Arya Nabavi, Christoph Bert, Ilker Eyupoglo, Andreas Maier
For a wide range of clinical applications, such as adaptive treatment planning or intraoperative image update, feature-based deformable registration (FDR) approaches are widely employed because of their simplicity and low computational complexity.
no code implementations • 28 Jan 2020 • Hendrik Schröter, Tobias Rosenkranz, Alberto N. Escalante B., Marc Aubreville, Andreas Maier
To improve monaural speech enhancement in noisy environments, we propose CLCNet, a framework based on complex valued linear coding.
no code implementations • 30 Jan 2020 • Martin Mayr, Mathis Hoffmann, Andreas Maier, Vincent Christlein
To this end, we apply normalized Lp normalization to aggregate the activation maps into single scores for classification.
no code implementations • 7 Feb 2020 • Faezeh Nejati Hatamian, Nishant Ravikumar, Sulaiman Vesal, Felix P. Kemeth, Matthias Struck, Andreas Maier
In this study, we investigate the impact of various data augmentation algorithms, e. g., oversampling, Gaussian Mixture Models (GMMs) and Generative Adversarial Networks (GANs), on solving the class imbalance problem.
no code implementations • 31 Mar 2020 • Patrick Krauss, Andreas Maier
The question of whether artificial beings or machines could become self-aware or consciousness has been a philosophical question for centuries.
no code implementations • 2 May 2020 • Lin Yuan, Yixing Huang, Andreas Maier
In this work, partial convolution is applied for projection inpainting, which only relies on valid pixels values.
no code implementations • 20 May 2020 • Yixing Huang, Alexander Preuhs, Michael Manhart, Guenter Lauritsch, Andreas Maier
For example, for truncated data, DCR achieves a mean root-mean-square error of 24 HU and a mean structure similarity index of 0. 999 inside the field-of-view for different patients in the noisy case, while the state-of-the-art U-Net method achieves 55 HU and 0. 995 respectively for these two metrics.
no code implementations • 18 Jun 2020 • Alexander Preuhs, Michael Manhart, Philipp Roser, Elisabeth Hoppe, Yixing Huang, Marios Psychogios, Markus Kowarschik, Andreas Maier
To this end, we train a siamese triplet network to predict the reprojection error (RPE) for the complete acquisition as well as an approximate distribution of the RPE along the single views from the reconstructed volume in a multi-task learning approach.
no code implementations • 8 Jul 2020 • Philipp Roser, Xia Zhong, Annette Birkhold, Alexander Preuhs, Christopher Syben, Elisabeth Hoppe, Norbert Strobel, Markus Kowarschik, Rebecca Fahrig, Andreas Maier
Here, we propose a novel approach combining conventional techniques with learning-based methods to simultaneously estimate the forward-scatter reaching the detector as well as the back-scatter affecting the patient skin dose.
no code implementations • 9 Jul 2020 • Mayank Patwari, Ralf Gutjahr, Rainer Raupach, Andreas Maier
Denoising of clinical CT images is an active area for deep learning research.
no code implementations • 9 Jul 2020 • Mayank Patwari, Ralf Gutjahr, Rainer Raupach, Andreas Maier
JBFnet is split into four filtering blocks, each of which performs Joint Bilateral Filtering.
no code implementations • 9 Jul 2020 • Jennifer Maier, Marlies Nitschke, Jang-Hwan Choi, Garry Gold, Rebecca Fahrig, Bjoern M. Eskofier, Andreas Maier
In our proposed multi-stage algorithm, these signals are transformed to the global coordinate system of the CT scan and applied for motion compensation during reconstruction.
no code implementations • 14 Jul 2020 • Simon Jordan, Mathias Seuret, Pavel Král, Ladislav Lenc, Jiří Martínek, Barbara Wiermann, Tobias Schwinger, Andreas Maier, Vincent Christlein
We show that a re-ranking step based on k-reciprocal nearest neighbor relationships is advantageous for writer identification, even if only a few samples per writer are available.
no code implementations • 15 Jul 2020 • Martin Leipert, Georg Vogeler, Mathias Seuret, Andreas Maier, Vincent Christlein
In classification, notarial instruments are distinguished from other documents, while the notary sign is separated from the certificate in the segmentation task.
no code implementations • 5 Aug 2020 • Sebastian Guendel, Arnaud Arindra Adiyoso Setio, Sasa Grbic, Andreas Maier, Dorin Comaniciu
However, because of the limited availability of scans containing nodules and the subtle properties of nodules in CXRs, state-of-the-art methods do not perform well on nodule classification.
no code implementations • 14 Aug 2020 • Mareike Thies, Jan-Nico Zäch, Cong Gao, Russell Taylor, Nassir Navab, Andreas Maier, Mathias Unberath
We propose to adjust the C-arm CBCT source trajectory during the scan to optimize reconstruction quality with respect to a certain task, i. e. verification of screw placement.
no code implementations • 14 Aug 2020 • Faezeh Nejati Hatamian, Amirabbas Davari, Andreas Maier
Due to the multiple imperfections during the signal acquisition, Electrocardiogram (ECG) datasets are typically contaminated with numerous types of noise, like salt and pepper and baseline drift.
no code implementations • 9 Sep 2020 • Yixing Huang, Fuxin Fan, Christopher Syben, Philipp Roser, Leonid Mill, Andreas Maier
The method trained on conventional cephalograms can be directly applied to landmark detection in the synthetic cephalograms, achieving 93. 0% and 80. 7% successful detection rate in 4 mm precision range for synthetic cephalograms from 3D volumes and 2D projections respectively.
no code implementations • 28 Sep 2020 • Felix Meister, Tiziano Passerini, Chloé Audigier, Èric Lluch, Viorel Mihalef, Hiroshi Ashikaga, Andreas Maier, Henry Halperin, Tommaso Mansi
The training set consists of data produced by a computational model of cardiac electrophysiology on a large cohort of synthetically generated geometries of ischemic hearts.
no code implementations • 5 Oct 2020 • Felix Denzinger, Michael Wels, Katharina Breininger, Mehmet A. Gülsün, Max Schöbinger, Florian André, Sebastian Buß, Johannes Görich, Michael Sühling, Andreas Maier
Coronary CT angiography (CCTA) has established its role as a non-invasive modality for the diagnosis of coronary artery disease (CAD).
no code implementations • 27 Oct 2020 • Lina Felsner, Tobias Würfl, Christopher Syben, Philipp Roser, Alexander Preuhs, Andreas Maier, Christian Riess
In this work we first formulate this reconstruction problem in terms of a system matrix and weighting part.
no code implementations • 29 Oct 2020 • Lennart Husvogt, Stefan B. Ploner, Siyu Chen, Daniel Stromer, Julia Schottenhamml, A. Yasin Alibhai, Eric Moult, Nadia K. Waheed, James G. Fujimoto, Andreas Maier
Optical coherence tomography angiography (OCTA) is a novel and clinically promising imaging modality to image retinal and sub-retinal vasculature.
no code implementations • 10 Nov 2020 • Mathis Hoffmann, Thomas Köhler, Bernd Doll, Frank Schebesch, Florian Talkenberg, Ian Marius Peters, Christoph J. Brabec, Andreas Maier, Vincent Christlein
Visual inspection of solar modules is an important monitoring facility in photovoltaic power plants.
no code implementations • 20 Nov 2020 • Leonid Mill, David Wolff, Nele Gerrits, Patrick Philipp, Lasse Kling, Florian Vollnhals, Andrew Ignatenko, Christian Jaremenko, Yixing Huang, Olivier De Castro, Jean-Nicolas Audinot, Inge Nelissen, Tom Wirtz, Andreas Maier, Silke Christiansen
Nanoparticles occur in various environments as a consequence of man-made processes, which raises concerns about their impact on the environment and human health.
no code implementations • 4 Dec 2020 • Frauke Wilm, Christof A. Bertram, Christian Marzahl, Alexander Bartel, Taryn A. Donovan, Charles-Antoine Assenmacher, Kathrin Becker, Mark Bennett, Sarah Corner, Brieuc Cossic, Daniela Denk, Martina Dettwiler, Beatriz Garcia Gonzalez, Corinne Gurtner, Annika Lehmbecker, Sophie Merz, Stephanie Plog, Anja Schmidt, Rebecca C. Smedley, Marco Tecilla, Tuddow Thaiwong, Katharina Breininger, Matti Kiupel, Andreas Maier, Robert Klopfleisch, Marc Aubreville
Density of mitotic figures in histologic sections is a prognostically relevant characteristic for many tumours.
no code implementations • 7 Dec 2020 • Chang Liu, Yixing Huang, Joscha Maier, Laura Klein, Marc Kachelrieß, Andreas Maier
For organ-specific AEC, a preliminary CT reconstruction is necessary to estimate organ shapes for dose optimization, where only a few projections are allowed for real-time reconstruction.
no code implementations • 18 Dec 2020 • Jeppe R. Andersen, James A. Black, Helen M. Brooks, Emmet P. Byrne, Andreas Maier, Jennifer M. Smillie
Large logarithmic corrections in $\hat s/p_t^2$ lead to substantial variations in the perturbative predictions for inclusive $W$-plus-dijet processes at the Large Hadron Collider.
High Energy Physics - Phenomenology
no code implementations • 26 Dec 2020 • Elisabeth Hoppe, Jens Wetzl, Philipp Roser, Lina Felsner, Alexander Preuhs, Andreas Maier
Continuous protocols for cardiac magnetic resonance imaging enable sampling of the cardiac anatomy simultaneously resolved into cardiac phases.
no code implementations • 11 Jan 2021 • Felix Denzinger, Michael Wels, Christian Hopfgartner, Jing Lu, Max Schöbinger, Andreas Maier, Michael Sühling
However, to enable clinical research with the help of these algorithms, a software solution, which enables manual correction, comprehensive visual feedback and tissue analysis capabilities, is needed.
no code implementations • 8 Jan 2021 • Rosanna Dietrich-Sussner, Amirabbas Davari, Thorsten Seehaus, Matthias Braun, Vincent Christlein, Andreas Maier, Christian Riess
Supervised machine learning requires a large amount of labeled data to achieve proper test results.
no code implementations • 8 Jan 2021 • Andreas Hartmann, Amirabbas Davari, Thorsten Seehaus, Matthias Braun, Andreas Maier, Vincent Christlein
It is therefore important to precisely monitor the position of the calving front.
no code implementations • 8 Jan 2021 • Michael Holzmann, Amirabbas Davari, Thorsten Seehaus, Matthias Braun, Andreas Maier, Vincent Christlein
An essential climate variable to determine the tidewater glacier status is the location of the calving front position and the separation of seasonal variability from long-term trends.
no code implementations • 13 Jan 2021 • Christian Marzahl, Christof A. Bertram, Frauke Wilm, Jörn Voigt, Ann K. Barton, Robert Klopfleisch, Katharina Breininger, Andreas Maier, Marc Aubreville
We evaluated our pipeline in a cross-validation setup with a fixed training set using a dataset of six equine WSIs of which four are partially annotated and used for training, and two fully annotated WSI are used for validation and testing.
no code implementations • 22 Jan 2021 • Philipp Roser, Annette Birkhold, Alexander Preuhs, Christopher Syben, Lina Felsner, Elisabeth Hoppe, Norbert Strobel, Markus Korwarschik, Rebecca Fahrig, Andreas Maier
Algorithmic X-ray scatter compensation is a desirable technique in flat-panel X-ray imaging and cone-beam computed tomography.
Medical Physics Image and Video Processing
no code implementations • 26 Jan 2021 • Tristan M. Gottschalk, Andreas Maier, Florian Kordon, Björn W. Kreher
Metal implants that are inserted into the patient's body during trauma interventions cause heavy artifacts in 3D X-ray acquisitions.
no code implementations • 31 Jan 2021 • Merlin A. Nau, Florian Schiffers, Yunhao Li, Bingjie Xu, Andreas Maier, Jack Tumblin, Marc Walton, Aggelos K. Katsaggelos, Florian Willomitzer, Oliver Cossairt
The utilization of computational photography becomes increasingly essential in the medical field.
no code implementations • 4 Feb 2021 • Karthik Shetty, Annette Birkhold, Norbert Strobel, Bernhard Egger, Srikrishna Jaganathan, Markus Kowarschik, Andreas Maier
First, a statistical human shape model of the human anatomy and second, a differentiable X-ray renderer.
no code implementations • 4 Feb 2021 • Srikrishna Jaganathan, Jian Wang, Anja Borsdorf, Andreas Maier
We aim to address this gap by incorporating traditional methods in deep neural networks using known operator learning.
no code implementations • 17 Feb 2021 • Jonas Denck, Jens Guehring, Andreas Maier, Eva Rothgang
A Magnetic Resonance Imaging (MRI) exam typically consists of the acquisition of multiple MR pulse sequences, which are required for a reliable diagnosis.
no code implementations • 24 Feb 2021 • Jennifer Maier, Marlies Nitschke, Jang-Hwan Choi, Garry Gold, Rebecca Fahrig, Bjoern M. Eskofier, Andreas Maier
We perform a simulation study using real motion recorded with an optical tracking system.
no code implementations • 9 Mar 2021 • Amirabbas Davari, Christoph Baller, Thorsten Seehaus, Matthias Braun, Andreas Maier, Vincent Christlein
In this work, we propose to mitigate the class-imbalance between the calving front class and the non-calving front class by reformulating the segmentation problem into a pixel-wise regression task.
no code implementations • 3 Apr 2021 • Jonas Denck, Jens Guehring, Andreas Maier, Eva Rothgang
Our approach is motivated by style transfer networks, whereas the "style" for an image is explicitly given in our case, as it is determined by the MR acquisition parameters our network is conditioned on.
no code implementations • 12 Apr 2021 • Sebastian Gündel, Arnaud A. A. Setio, Florin C. Ghesu, Sasa Grbic, Bogdan Georgescu, Andreas Maier, Dorin Comaniciu
Chest radiography is the most common radiographic examination performed in daily clinical practice for the detection of various heart and lung abnormalities.
no code implementations • 19 May 2021 • Fasil Gadjimuradov, Thomas Benkert, Marcel Dominik Nickel, Andreas Maier
The algorithm is trained on DW liver data of 60 volunteers and evaluated on retrospectively and prospectively sub-sampled data of different anatomies and resolutions.
no code implementations • 6 Jun 2021 • Nadine Ruecker, Andreas Maier
Any modern system writes events into files, called log files.
no code implementations • 21 Jul 2021 • Srikrishna Jaganathan, Jian Wang, Anja Borsdorf, Karthik Shetty, Andreas Maier
A refinement step using the classical optimization-based 2D/3D registration method applied in combination with Deep Learning-based techniques can provide the required accuracy.
no code implementations • 10 Aug 2021 • Andreas Maier, Harald Köstler, Marco Heisig, Patrick Krauss, Seung Hee Yang
In this article, we perform a review of the state-of-the-art of hybrid machine learning in medical imaging.
no code implementations • 30 Aug 2021 • Guanxin Jiang, Arijit Biswas, Christian Bergler, Andreas Maier
Automatic coded audio quality assessment is an important task whose progress is hampered by the scarcity of human annotations, poor generalization to unseen codecs, bitrates, content-types, and a lack of flexibility of existing approaches.
no code implementations • 25 Aug 2021 • Fuxin Fan, Björn Kreher, Holger Keil, Andreas Maier, Yixing Huang
For direct detection from distorted markers in reconstructed volumes, an efficient automatic marker detection method using two neural networks and a conventional circle detection algorithm is proposed.
no code implementations • 31 Aug 2021 • Mathis Hoffmann, Johannes Hepp, Bernd Doll, Claudia Buerhop-Lutz, Ian Marius Peters, Christoph Brabec, Andreas Maier, Vincent Christlein
While these areas can be easily identified from electroluminescense (EL) images, this is much harder for photoluminescence (PL) images.
no code implementations • 6 Sep 2021 • Seung Su Yoon, Elisabeth Preuhs, Michaela Schmidt, Christoph Forman, Teodora Chitiboi, Puneet Sharma, Juliano Lara Fernandes, Christoph Tillmanns, Jens Wetzl, Andreas Maier
In this work, automated RP detection has been introduced by the proposed framework and demonstrated feasibility, robustness, and applicability for static imaging acquisitions.
no code implementations • 15 Sep 2021 • Celia Martin Vicario, Florian Kordon, Felix Denzinger, Jan Siad El Barbari, Maxim Privalov, Jochen Franke, Sarina Thomas, Lisa Kausch, Andreas Maier, Holger Kunze
The most important benefit of the MTL approach is that it is a single network for standard plane regression for all body regions with a reduced number of stored parameters.
no code implementations • 5 Nov 2021 • Sonja Kunzmann, Christian Marzahl, Felix Denzinger, Christof A. Bertram, Robert Klopfleisch, Katharina Breininger, Vincent Christlein, Andreas Maier
Annotating data, especially in the medical domain, requires expert knowledge and a lot of effort.
1 code implementation • 3 Dec 2021 • Lukas Folle, Katharian Tkotz, Fasil Gadjimuradov, Lorenz Kapsner, Moritz Fabian, Sebastian Bickelhaupt, David Simon, Arnd Kleyer, Gerhard Krönke, Moritz Zaiß, Armin Nagel, Andreas Maier
This work paves the way for the prospective investigation of neural networks for super-resolution CEST MRI and, followingly, might lead to a earlier detection of the onset of rheumatic diseases.
no code implementations • 3 Dec 2021 • Florian Thamm, Oliver Taubmann, Markus Jürgens, Hendrik Ditt, Andreas Maier
Training the EfficientNetB1 architecture on 100 data sets, the proposed augmentation scheme was able to raise the ROC AUC to 0. 85 from a baseline value of 0. 56 using no augmentation.
no code implementations • 3 Dec 2021 • Satyaki Chatterjee, Siming Bayer, Andreas Maier
In combating climate change, an effective demand-based energy supply operation of the district energy system (DES) for heating or cooling is indispensable.
no code implementations • 3 Dec 2021 • Tristan M. Gottschalk, Andreas Maier, Florian Kordon, Björn W. Kreher
Due to occurring metal artifacts, the quality of this evaluation heavily depends on the performance of so-called Metal Artifact Reduction methods (MAR).
no code implementations • 6 Dec 2021 • Andreas Maier, Seung Hee Yang, Farhad Maleki, Nikesh Muthukrishnan, Reza Forghani
In the domain of medical image processing, medical device manufacturers protect their intellectual property in many cases by shipping only compiled software, i. e. binary code which can be executed but is difficult to be understood by a potential attacker.
no code implementations • 6 Jan 2022 • Aline Sindel, Bettina Hohberger, Sebastian Fassihi Dehcordi, Christian Mardin, Robert Lämmer, Andreas Maier, Vincent Christlein
Our method demonstrates the best registration performance on our and a public multi-modal dataset in comparison to competing methods.
no code implementations • 17 Jan 2022 • Florian Thamm, Felix Denzinger, Leonhard Rist, Celia Martin Vicario, Florian Kordon, Andreas Maier
In this report we want to present our method and results for the Carotid Artery Vessel Wall Segmentation Challenge.
no code implementations • 19 Jan 2022 • Mathias Öttl, Jana Mönius, Christian Marzahl, Matthias Rübner, Carol I. Geppert, Arndt Hartmann, Matthias W. Beckmann, Peter Fasching, Andreas Maier, Ramona Erber, Katharina Breininger
When evaluating the approaches on fully manually annotated images, we observe that the autoencoder-based superpixels achieve a 23% increase in boundary F1 score compared to the baseline SLIC superpixels.
no code implementations • 19 Jan 2022 • Mareike Thies, Fabian Wagner, Mingxuan Gu, Lukas Folle, Lina Felsner, Andreas Maier
Learned iterative reconstruction algorithms for inverse problems offer the flexibility to combine analytical knowledge about the problem with modules learned from data.