no code implementations • 10 Feb 2023 • Christian Tomani, Futa Waseda, Yuesong Shen, Daniel Cremers
While existing post-hoc calibration methods achieve impressive results on in-domain test datasets, they are limited by their inability to yield reliable uncertainty estimates in domain-shift and out-of-domain (OOD) scenarios.
1 code implementation • 26 Jan 2023 • Linus Härenstam-Nielsen, Niclas Zeller, Daniel Cremers
We propose an approach based on convex relaxations for certifiably optimal robust multiview triangulation.
1 code implementation • 18 Jan 2023 • Felix Wimbauer, Nan Yang, Christian Rupprecht, Daniel Cremers
Currently, neural radiance fields (NeRFs) can capture true 3D including color but are too complex to be generated from a single image.
1 code implementation • 6 Jan 2023 • Dekai Zhu, Qadeer Khan, Daniel Cremers
This is done by training a neural network which takes the state and intent of the multiple vehicles to predict their future trajectory.
no code implementations • 31 Dec 2022 • Patrick Wenzel, Nan Yang, Rui Wang, Niclas Zeller, Daniel Cremers
In this paper, we present a novel visual SLAM and long-term localization benchmark for autonomous driving in challenging conditions based on the large-scale 4Seasons dataset.
no code implementations • 20 Dec 2022 • Simon Klenk, David Bonello, Lukas Koestler, Daniel Cremers
Event cameras offer the capacity to asynchronously capture brightness changes with low latency, high temporal resolution, and high dynamic range.
no code implementations • 9 Dec 2022 • Mohammed Brahimi, Bjoern Haefner, Tarun Yenamandra, Bastian Goldluecke, Daniel Cremers
We propose an end-to-end inverse rendering pipeline called SupeRVol that allows us to recover 3D shape and material parameters from a set of color images in a super-resolution manner.
no code implementations • 6 Dec 2022 • Marvin Eisenberger, Aysim Toker, Laura Leal-Taixé, Daniel Cremers
We present G-MSM (Graph-based Multi-Shape Matching), a novel unsupervised learning approach for non-rigid shape correspondence.
no code implementations • 6 Dec 2022 • Atanas Mirchev, Baris Kayalibay, Ahmed Agha, Patrick van der Smagt, Daniel Cremers, Justin Bayer
We introduce PRISM, a method for real-time filtering in a probabilistic generative model of agent motion and visual perception.
no code implementations • 22 Nov 2022 • Yan Xia, Mariia Gladkova, Rui Wang, João F. Henriques, Daniel Cremers, Uwe Stilla
Training deep networks to match such scans presents a difficult trade-off: a higher spatial resolution of the network's intermediate representations is needed to perform fine-grained matching of subtle geometric features, but growing it too large makes the memory requirements infeasible.
1 code implementation • 27 Oct 2022 • Hans Hao-Hsun Hsu, Yuesong Shen, Daniel Cremers
Current graph neural networks (GNNs) that tackle node classification on graphs tend to only focus on nodewise scores and are solely evaluated by nodewise metrics.
1 code implementation • 21 Oct 2022 • Lu Sang, Bjoern Haefner, Xingxing Zuo, Daniel Cremers
Fine-detailed reconstructions are in high demand in many applications.
1 code implementation • 12 Oct 2022 • Yuesong Shen, Daniel Cremers
In this work, we explore a combinatorial generalization of deep ensemble called deep combinatorial aggregation (DCA).
1 code implementation • 12 Oct 2022 • Hans Hao-Hsun Hsu, Yuesong Shen, Christian Tomani, Daniel Cremers
Furthermore, based on the insights from this study, we design a novel calibration method named Graph Attention Temperature Scaling (GATS), which is tailored for calibrating graph neural networks.
no code implementations • 29 Sep 2022 • Mariia Gladkova, Nikita Korobov, Nikolaus Demmel, Aljoša Ošep, Laura Leal-Taixé, Daniel Cremers
Direct methods have shown excellent performance in the applications of visual odometry and SLAM.
1 code implementation • 24 Aug 2022 • Simon Klenk, Lukas Koestler, Davide Scaramuzza, Daniel Cremers
We also show that combining events and frames can overcome failure cases of NeRF estimation in scenarios where only a few input views are available without requiring additional regularization.
1 code implementation • 10 Aug 2022 • Sherwin Bahmani, Oliver Hahn, Eduard Zamfir, Nikita Araslanov, Daniel Cremers, Stefan Roth
In this work, we challenge this premise with a self-adaptive approach for semantic segmentation that adjusts the inference process to each input sample.
1 code implementation • 20 Jun 2022 • Zhakshylyk Nurlanov, Daniel Cremers, Florian Bernard
While discrete optimization methods are able to give theoretical optimality guarantees, they can only handle a finite number of labels and therefore suffer from label discretization bias.
1 code implementation • 13 Jun 2022 • Hang Li, Qadeer Khan, Volker Tresp, Daniel Cremers
The human brain can be considered to be a graphical structure comprising of tens of billions of biological neurons connected by synapses.
no code implementations • 30 May 2022 • Christian Tomani, Daniel Cremers
Regularization is key in deep learning, especially when training complex models on relatively small datasets.
1 code implementation • 23 May 2022 • Michael Schleiss, Fahmi Rouatbi, Daniel Cremers
Visual Place Recognition and Visual Localization are essential components in navigation and mapping for autonomous vehicles especially in GNSS-denied navigation scenarios.
1 code implementation • CVPR 2022 • Marvin Eisenberger, Aysim Toker, Laura Leal-Taixé, Florian Bernard, Daniel Cremers
The Sinkhorn operator has recently experienced a surge of popularity in computer vision and related fields.
no code implementations • 29 Apr 2022 • Florian Hofherr, Lukas Koestler, Florian Bernard, Daniel Cremers
Neural networks have recently been used to analyze diverse physical systems and to identify the underlying dynamics.
1 code implementation • CVPR 2022 • Paul Roetzer, Paul Swoboda, Daniel Cremers, Florian Bernard
We present a scalable combinatorial algorithm for globally optimizing over the space of geometrically consistent mappings between 3D shapes.
no code implementations • 27 Apr 2022 • Simon Weber, Nikolaus Demmel, Tin Chon Chan, Daniel Cremers
We demonstrate that employing the proposed Power Bundle Adjustment as a sub-problem solver significantly improves speed and accuracy of the distributed optimization.
no code implementations • 21 Apr 2022 • Abhishek Saroha, Marvin Eisenberger, Tarun Yenamandra, Daniel Cremers
Finally, we show that our adversarial training approach leads to visually plausible reconstructions that are highly consistent in recovering missing parts of a given object.
no code implementations • CVPR 2022 • Dominik Muhle, Lukas Koestler, Nikolaus Demmel, Florian Bernard, Daniel Cremers
However, their approach does not take into account uncertainties, so that the accuracy of the estimated relative pose is highly dependent on accurate feature positions in the target frame.
no code implementations • 30 Mar 2022 • Tarun Yenamandra, Ayush Tewari, Nan Yang, Florian Bernard, Christian Theobalt, Daniel Cremers
To this end, we learn a signed distance function (SDF) along with our DDF model to represent a class of shapes.
no code implementations • CVPR 2022 • Aysim Toker, Lukas Kondmann, Mark Weber, Marvin Eisenberger, Andrés Camero, Jingliang Hu, Ariadna Pregel Hoderlein, Çağlar Şenaras, Timothy Davis, Daniel Cremers, Giovanni Marchisio, Xiao Xiang Zhu, Laura Leal-Taixé
These observations are paired with pixel-wise monthly semantic segmentation labels of 7 land use and land cover (LULC) classes.
no code implementations • 20 Mar 2022 • Florian Müller, Qadeer Khan, Daniel Cremers
In this paper, a framework for training a more robust and scalable model for lateral vehicle control is proposed.
1 code implementation • 15 Mar 2022 • Lukas Koestler, Daniel Grittner, Michael Moeller, Daniel Cremers, Zorah Lähner
Neural fields have gained significant attention in the computer vision community due to their excellent performance in novel view synthesis, geometry reconstruction, and generative modeling.
no code implementations • 2 Mar 2022 • Qing Cheng, Niclas Zeller, Daniel Cremers
In this paper, we present a complete pipeline for 3D semantic mapping solely based on a stereo camera system.
1 code implementation • 11 Jan 2022 • Lukas von Stumberg, Daniel Cremers
This is the foundation of the proposed pose graph bundle adjustment, which we use for IMU initialization.
1 code implementation • 8 Dec 2021 • Viktoria Ehm, Daniel Cremers, Florian Bernard
Traditionally, the concept of a shortest path is considered for graphs with scalar edge weights, which makes it possible to compute the length of a path by adding up the individual edge weights.
1 code implementation • CVPR 2022 • Christiane Sommer, Lu Sang, David Schubert, Daniel Cremers
We present Gradient-SDF, a novel representation for 3D geometry that combines the advantages of implict and explicit representations.
1 code implementation • 14 Nov 2021 • Lukas Koestler, Nan Yang, Niclas Zeller, Daniel Cremers
In this paper, we present TANDEM a real-time monocular tracking and dense mapping framework.
no code implementations • 8 Oct 2021 • Simon Weber, Nikolaus Demmel, Daniel Cremers
We revisit the problem of large-scale bundle adjustment and propose a technique called Multidirectional Conjugate Gradients that accelerates the solution of the normal equation by up to 61%.
no code implementations • NeurIPS 2021 • Florian Bernard, Daniel Cremers, Johan Thunberg
We address the non-convex optimisation problem of finding a sparse matrix on the Stiefel manifold (matrices with mutually orthogonal columns of unit length) that maximises (or minimises) a quadratic objective function.
no code implementations • 29 Sep 2021 • Marvin Eisenberger, Aysim Toker, Laura Leal-Taixé, Florian Bernard, Daniel Cremers
Our main contribution is deriving a simple and efficient algorithm that performs this backward pass in closed form.
no code implementations • 23 Sep 2021 • Maximilian Mozes, Martin Schmitt, Vladimir Golkov, Hinrich Schütze, Daniel Cremers
We investigate the incorporation of visual relationships into the task of supervised image caption generation by proposing a model that leverages detected objects and auto-generated visual relationships to describe images in natural language.
1 code implementation • 12 Sep 2021 • Martin Wudenka, Marcus G. Müller, Nikolaus Demmel, Armin Wedler, Rudolph Triebel, Daniel Cremers, Wolfgang Stürzl
In contrast to most other approaches, our framework can also handle rotation-only motions that are particularly challenging for monocular odometry systems.
no code implementations • ICCV 2021 • Nikolaus Demmel, David Schubert, Christiane Sommer, Daniel Cremers, Vladyslav Usenko
The square root formulation pervades three major aspects of our optimization-based sliding-window estimator: for bundle adjustment we eliminate landmark variables with nullspace projection; to store the marginalization prior we employ a matrix square root of the Hessian; and when marginalizing old poses we avoid forming normal equations and update the square root prior directly with a specialized QR decomposition.
1 code implementation • 3 Sep 2021 • Ji Yang, Lu Sang, Daniel Cremers
To mathematically prove this, we borrow a tool in topological algebra: Betti numbers to measure the topological geometric complexity of input data and the neural network.
no code implementations • 16 Aug 2021 • Simon Klenk, Jason Chui, Nikolaus Demmel, Daniel Cremers
The event cameras contain a large sensor of 1280x720 pixels, which is significantly larger than the sensors used in existing stereo event datasets (at least by a factor of ten).
no code implementations • 27 Jul 2021 • Yu Wang, Yuesong Shen, Daniel Cremers
To learn the direct influence among output nodes in a graph, we propose the Explicit Pairwise Factorized Graph Neural Network (EPFGNN), which models the whole graph as a partially observed Markov Random Field.
no code implementations • 13 Jul 2021 • Hartmut Bauermeister, Emanuel Laude, Thomas Möllenhoff, Michael Moeller, Daniel Cremers
In contrast to existing discretizations which suffer from a grid bias, we show that a piecewise polynomial discretization better preserves the continuous nature of our problem.
no code implementations • 9 Jul 2021 • Jason Chui, Simon Klenk, Daniel Cremers
We propose a novel method for continuous-time feature tracking in event cameras.
1 code implementation • 17 Jun 2021 • Mark Weber, Huiyu Wang, Siyuan Qiao, Jun Xie, Maxwell D. Collins, Yukun Zhu, Liangzhe Yuan, Dahun Kim, Qihang Yu, Daniel Cremers, Laura Leal-Taixe, Alan L. Yuille, Florian Schroff, Hartwig Adam, Liang-Chieh Chen
DeepLab2 is a TensorFlow library for deep labeling, aiming to provide a state-of-the-art and easy-to-use TensorFlow codebase for general dense pixel prediction problems in computer vision.
no code implementations • CVPR 2021 • Marvin Eisenberger, David Novotny, Gael Kerchenbaum, Patrick Labatut, Natalia Neverova, Daniel Cremers, Andrea Vedaldi
We present NeuroMorph, a new neural network architecture that takes as input two 3D shapes and produces in one go, i. e. in a single feed forward pass, a smooth interpolation and point-to-point correspondences between them.
no code implementations • 31 Mar 2021 • Zhenzhang Ye, Tarun Yenamandra, Florian Bernard, Daniel Cremers
While these approaches mainly focus on learning node and edge attributes, they completely ignore the 3D geometry of the underlying 3D objects depicted in the 2D images.
Ranked #4 on
Graph Matching
on PASCAL VOC
no code implementations • 20 Mar 2021 • Qadeer Khan, Patrick Wenzel, Daniel Cremers
Vision-based learning methods for self-driving cars have primarily used supervised approaches that require a large number of labels for training.
no code implementations • 8 Mar 2021 • Patrick Wenzel, Torsten Schön, Laura Leal-Taixé, Daniel Cremers
Obstacle avoidance is a fundamental and challenging problem for autonomous navigation of mobile robots.
1 code implementation • CVPR 2021 • Nikolaus Demmel, Christiane Sommer, Daniel Cremers, Vladyslav Usenko
We propose a new formulation for the bundle adjustment problem which relies on nullspace marginalization of landmark variables by QR decomposition.
1 code implementation • 24 Feb 2021 • Christian Tomani, Daniel Cremers, Florian Buettner
We address the problem of uncertainty calibration and introduce a novel calibration method, Parametrized Temperature Scaling (PTS).
1 code implementation • 23 Feb 2021 • Mark Weber, Jun Xie, Maxwell Collins, Yukun Zhu, Paul Voigtlaender, Hartwig Adam, Bradley Green, Andreas Geiger, Bastian Leibe, Daniel Cremers, Aljoša Ošep, Laura Leal-Taixé, Liang-Chieh Chen
The task of assigning semantic classes and track identities to every pixel in a video is called video panoptic segmentation.
1 code implementation • 22 Feb 2021 • Thomas Frerix, Dmitrii Kochkov, Jamie A. Smith, Daniel Cremers, Michael P. Brenner, Stephan Hoyer
Variational data assimilation optimizes for an initial state of a dynamical system such that its evolution fits observational data.
1 code implementation • 13 Feb 2021 • Philip Müller, Vladimir Golkov, Valentina Tomassini, Daniel Cremers
So far, they have been proposed for 2D and 3D data.
no code implementations • 1 Feb 2021 • Mariia Gladkova, Rui Wang, Niclas Zeller, Daniel Cremers
To achieve map-based relocalization for direct methods, we integrate image features into Direct Sparse Odometry (DSO) and rely on feature matching to associate online visual odometry (VO) with a previously built map.
1 code implementation • CVPR 2021 • Christian Tomani, Sebastian Gruber, Muhammed Ebrar Erdem, Daniel Cremers, Florian Buettner
First, we show that existing post-hoc calibration methods yield highly over-confident predictions under domain shift.
1 code implementation • 6 Dec 2020 • Ioannis Chiotellis, Daniel Cremers
Can we learn how to explore unknown spaces efficiently?
no code implementations • CVPR 2021 • Maolin Gao, Zorah Lähner, Johan Thunberg, Daniel Cremers, Florian Bernard
Finding correspondences between shapes is a fundamental problem in computer vision and graphics, which is relevant for many applications, including 3D reconstruction, object tracking, and style transfer.
1 code implementation • CVPR 2021 • Tarun Yenamandra, Ayush Tewari, Florian Bernard, Hans-Peter Seidel, Mohamed Elgharib, Daniel Cremers, Christian Theobalt
Our approach has the following favorable properties: (i) It is the first full head morphable model that includes hair.
no code implementations • 26 Nov 2020 • Or Litany, Emanuele Rodolà, Alex Bronstein, Michael Bronstein, Daniel Cremers
We assume to be given a reference shape and its multiple parts undergoing a non-rigid deformation.
1 code implementation • CVPR 2021 • Yan Xia, Yusheng Xu, Shuang Li, Rui Wang, Juan Du, Daniel Cremers, Uwe Stilla
We tackle the problem of place recognition from point cloud data and introduce a self-attention and orientation encoding network (SOE-Net) that fully explores the relationship between points and incorporates long-range context into point-wise local descriptors.
1 code implementation • CVPR 2021 • Felix Wimbauer, Nan Yang, Lukas von Stumberg, Niclas Zeller, Daniel Cremers
Unlike other multi-view stereo methods, MonoRec is able to reconstruct both static and moving objects by leveraging the predicted masks.
1 code implementation • NeurIPS 2020 • Marvin Eisenberger, Aysim Toker, Laura Leal-Taixé, Daniel Cremers
We propose a novel unsupervised learning approach to 3D shape correspondence that builds a multiscale matching pipeline into a deep neural network.
no code implementations • 23 Oct 2020 • Mehmet Aygün, Zorah Lähner, Daniel Cremers
In this work, we propose an unsupervised method for learning dense correspondences between shapes using a recent deep functional map framework.
no code implementations • 15 Oct 2020 • Patrick Dendorfer, Aljoša Ošep, Anton Milan, Konrad Schindler, Daniel Cremers, Ian Reid, Stefan Roth, Laura Leal-Taixé
We present MOTChallenge, a benchmark for single-camera Multiple Object Tracking (MOT) launched in late 2014, to collect existing and new data, and create a framework for the standardized evaluation of multiple object tracking methods.
no code implementations • 13 Oct 2020 • Lukas von Stumberg, Patrick Wenzel, Nan Yang, Daniel Cremers
The learned features significantly improve the robustness of direct image alignment, especially for relocalization across different conditions.
no code implementations • 14 Sep 2020 • Patrick Wenzel, Rui Wang, Nan Yang, Qing Cheng, Qadeer Khan, Lukas von Stumberg, Niclas Zeller, Daniel Cremers
We present a novel dataset covering seasonal and challenging perceptual conditions for autonomous driving.
1 code implementation • ECCV 2020 • Juan Du, Rui Wang, Daniel Cremers
We generate the global descriptor by directly aggregating the learned local descriptors with an effective attention mechanism.
1 code implementation • 30 Jun 2020 • Yuesong Shen, Daniel Cremers
It is thus a promising framework that deepens our understanding of neural networks and provides a coherent theoretical formulation for future deep learning research.
no code implementations • 25 Jun 2020 • Vladimir Golkov, Alexander Becker, Daniel T. Plop, Daniel Čuturilo, Neda Davoudi, Jeffrey Mendenhall, Rocco Moretti, Jens Meiler, Daniel Cremers
Computer-aided drug discovery is an essential component of modern drug development.
no code implementations • 22 Jun 2020 • Jiayu Liu, Ioannis Chiotellis, Rudolph Triebel, Daniel Cremers
In active learning, sampling bias could pose a serious inconsistency problem and hinder the algorithm from finding the optimal hypothesis.
Ranked #106 on
Image Classification
on STL-10
1 code implementation • 15 May 2020 • Christiane Sommer, Yumin Sun, Erik Bylow, Daniel Cremers
This paper tackles the problem of data abstraction in the context of 3D point sets.
1 code implementation • ECCV 2020 • Marvin Eisenberger, Daniel Cremers
While most prior work focuses on synthetic input shapes, our formulation is designed to be applicable to real-world scans with imperfect input correspondences and various types of noise.
1 code implementation • 19 Mar 2020 • Patrick Dendorfer, Hamid Rezatofighi, Anton Milan, Javen Shi, Daniel Cremers, Ian Reid, Stefan Roth, Konrad Schindler, Laura Leal-Taixé
The benchmark for Multiple Object Tracking, MOTChallenge, was launched with the goal to establish a standardized evaluation of multiple object tracking methods.
Multi-Object Tracking
Multiple Object Tracking with Transformer
+1
no code implementations • CVPR 2020 • Nan Yang, Lukas von Stumberg, Rui Wang, Daniel Cremers
We propose D3VO as a novel framework for monocular visual odometry that exploits deep networks on three levels -- deep depth, pose and uncertainty estimation.
1 code implementation • 27 Feb 2020 • Zhenzhang Ye, Thomas Möllenhoff, Tao Wu, Daniel Cremers
Structured convex optimization on weighted graphs finds numerous applications in machine learning and computer vision.
no code implementations • 30 Jan 2020 • Hamid Rezatofighi, Tianyu Zhu, Roman Kaskman, Farbod T. Motlagh, Qinfeng Shi, Anton Milan, Daniel Cremers, Laura Leal-Taixé, Ian Reid
In our formulation we define a likelihood for a set distribution represented by a) two discrete distributions defining the set cardinally and permutation variables, and b) a joint distribution over set elements with a fixed cardinality.
2 code implementations • 21 Jan 2020 • Christiane Sommer, Yumin Sun, Leonidas Guibas, Daniel Cremers, Tolga Birdal
We propose a new method for segmentation-free joint estimation of orthogonal planes, their intersection lines, relationship graph and corners lying at the intersection of three orthogonal planes.
1 code implementation • 13 Dec 2019 • Lu Sang, Bjoern Haefner, Daniel Cremers
A novel approach towards depth map super-resolution using multi-view uncalibrated photometric stereo is presented.
no code implementations • 4 Dec 2019 • Pierre Bréchet, Tao Wu, Thomas Möllenhoff, Daniel Cremers
We tackle the challenge of disentangled representation learning in generative adversarial networks (GANs) from the perspective of regularized optimal transport (OT).
6 code implementations • CVPR 2020 • Christiane Sommer, Vladyslav Usenko, David Schubert, Nikolaus Demmel, Daniel Cremers
Continuous-time trajectory representation has recently gained popularity for tasks where the fusion of high-frame-rate sensors and multiple unsynchronized devices is required.
no code implementations • 17 Nov 2019 • Mohammed Brahimi, Yvain Quéau, Bjoern Haefner, Daniel Cremers
While the theoretical foundations of this inverse problem under directional lighting are well-established, there is a lack of mathematical evidence for the uniqueness of a solution under general lighting.
no code implementations • 4 Nov 2019 • David Schubert, Nikolaus Demmel, Lukas von Stumberg, Vladyslav Usenko, Daniel Cremers
The visual part of the system performs a photometric bundle adjustment on a sparse set of points.
no code implementations • 31 Oct 2019 • Luca Della Libera, Vladimir Golkov, Yue Zhu, Arman Mielke, Daniel Cremers
Convolutional networks are successful due to their equivariance/invariance under translations.
no code implementations • 15 Oct 2019 • Eunah Jung, Nan Yang, Daniel Cremers
We propose the concept of a multi-frame GAN (MFGAN) and demonstrate its potential as an image sequence enhancement for stereo visual odometry in low light conditions.
no code implementations • 8 Oct 2019 • Mahesh Chandra Mukkamala, Felix Westerkamp, Emanuel Laude, Daniel Cremers, Peter Ochs
This initiated the development of the Bregman proximal gradient (BPG) algorithm and an inertial variant (momentum based) CoCaIn BPG, which however rely on problem dependent Bregman distances.
1 code implementation • 4 Oct 2019 • Sebastian Weiss, Robert Maier, Rüdiger Westermann, Daniel Cremers, Nils Thuerey
In a number of tests using synthetic datasets and real-world measurements, we analyse the robustness of our approach and the convergence behavior of the numerical optimization scheme.
Graphics I.6
no code implementations • 25 Jul 2019 • Qadeer Khan, Patrick Wenzel, Daniel Cremers, Laura Leal-Taixé
The ability of deep learning models to generalize well across different scenarios depends primarily on the quality and quantity of annotated data.
no code implementations • 10 Jun 2019 • Patrick Dendorfer, Hamid Rezatofighi, Anton Milan, Javen Shi, Daniel Cremers, Ian Reid, Stefan Roth, Konrad Schindler, Laura Leal-Taixe
Standardized benchmarks are crucial for the majority of computer vision applications.
1 code implementation • CVPR 2020 • Marvin Eisenberger, Zorah Lähner, Daniel Cremers
Smooth shells define a series of coarse-to-fine shape approximations designed to work well with multiscale algorithms.
1 code implementation • 12 May 2019 • Thomas Möllenhoff, Daniel Cremers
We take the novel perspective to view data not as a probability distribution but rather as a current.
1 code implementation • 8 May 2019 • Jan Schuchardt, Vladimir Golkov, Daniel Cremers
Here we show that learning to evolve, i. e. learning to mutate and recombine better than at random, improves the result of evolution in terms of fitness increase per generation and even in terms of attainable fitness.
no code implementations • 2 May 2019 • Thomas Möllenhoff, Daniel Cremers
Numerous tasks in imaging and vision can be formulated as variational problems over vector-valued maps.
1 code implementation • 26 Apr 2019 • Lukas von Stumberg, Patrick Wenzel, Qadeer Khan, Daniel Cremers
Direct SLAM methods have shown exceptional performance on odometry tasks.
no code implementations • 22 Apr 2019 • Rui Wang, Nan Yang, Joerg Stueckler, Daniel Cremers
Scene understanding from images is a challenging problem encountered in autonomous driving.
7 code implementations • 13 Apr 2019 • Vladyslav Usenko, Nikolaus Demmel, David Schubert, Jörg Stückler, Daniel Cremers
We reconstruct a set of non-linear factors that make an optimal approximation of the information on the trajectory accumulated by VIO.
1 code implementation • ICCV 2019 • Bjoern Haefner, Zhenzhang Ye, Maolin Gao, Tao Wu, Yvain Quéau, Daniel Cremers
Photometric stereo (PS) techniques nowadays remain constrained to an ideal laboratory setup where modeling and calibration of lighting is amenable.
no code implementations • ICCV 2019 • Michael Moeller, Thomas Möllenhoff, Daniel Cremers
The last decade has shown a tremendous success in solving various computer vision problems with the help of deep learning techniques.
no code implementations • 27 Mar 2019 • Emanuel Laude, Tao Wu, Daniel Cremers
In this work, we consider nonconvex composite problems that involve inf-convolution with a Legendre function, which gives rise to an anisotropic generalization of the proximal mapping and Moreau-envelope.
1 code implementation • 5 Feb 2019 • Thomas Frerix, Matthias Nießner, Daniel Cremers
One way to achieve this task is by means of a projection step at test time after unconstrained training.
1 code implementation • 31 Jan 2019 • Yuesong Shen, Tao Wu, Csaba Domokos, Daniel Cremers
Probabilistic graphical models are traditionally known for their successes in generative modeling.
1 code implementation • 26 Sep 2018 • Bjoern Haefner, Songyou Peng, Alok Verma, Yvain Quéau, Daniel Cremers
This study explores the use of photometric techniques (shape-from-shading and uncalibrated photometric stereo) for upsampling the low-resolution depth map from an RGB-D sensor to the higher resolution of the companion RGB image.
no code implementations • ECCV 2018 • Csaba Domokos, Frank R. Schmidt, Daniel Cremers
To this end, we assume that the label set is the Cartesian product of totally ordered sets and the convex prior is separable.
no code implementations • ECCV 2018 • Zorah Laehner, Daniel Cremers, Tony Tung
We present a novel method to generate accurate and realistic clothing deformation from real data capture.
no code implementations • 8 Aug 2018 • Hidenobu Matsuki, Lukas von Stumberg, Vladyslav Usenko, Jörg Stückler, Daniel Cremers
We propose a novel real-time direct monocular visual odometry for omnidirectional cameras.
no code implementations • 6 Aug 2018 • Lingni Ma, Jörg Stückler, Tao Wu, Daniel Cremers
Dense pixelwise prediction such as semantic segmentation is an up-to-date challenge for deep convolutional neural networks (CNNs).
no code implementations • 3 Aug 2018 • Xiang Gao, Rui Wang, Nikolaus Demmel, Daniel Cremers
In this paper we present an extension of Direct Sparse Odometry (DSO) to a monocular visual SLAM system with loop closure detection and pose-graph optimization (LDSO).
no code implementations • ECCV 2018 • David Schubert, Nikolaus Demmel, Vladyslav Usenko, Jörg Stückler, Daniel Cremers
Neglecting the effects of rolling-shutter cameras for visual odometry (VO) severely degrades accuracy and robustness.
8 code implementations • 24 Jul 2018 • Vladyslav Usenko, Nikolaus Demmel, Daniel Cremers
We evaluate the model using a calibration dataset with several different lenses and compare the models using the metrics that are relevant for Visual Odometry, i. e., reprojection error, as well as computation time for projection and unprojection functions and their Jacobians.
no code implementations • ECCV 2018 • Nan Yang, Rui Wang, Jörg Stückler, Daniel Cremers
To this end, we incorporate deep depth predictions into Direct Sparse Odometry (DSO) as direct virtual stereo measurements.
1 code implementation • 5 Jul 2018 • Henning Tjaden, Ulrich Schwanecke, Elmar Schömer, Daniel Cremers
We propose an algorithm for real-time 6DOF pose tracking of rigid 3D objects using a monocular RGB camera.
1 code implementation • 3 Jul 2018 • Patrick Wenzel, Qadeer Khan, Daniel Cremers, Laura Leal-Taixé
To this end, we propose to divide the task of vehicle control into two independent modules: a control module which is only trained on one weather condition for which labeled steering data is available, and a perception module which is used as an interface between new weather conditions and the fixed control module.
1 code implementation • 27 Jun 2018 • Marvin Eisenberger, Zorah Lähner, Daniel Cremers
We present a novel method to model and calculate deformation fields between shapes embedded in $\mathbb{R}^D$.
1 code implementation • 8 Jun 2018 • Aleksei Vasilev, Vladimir Golkov, Marc Meissner, Ilona Lipp, Eleonora Sgarlata, Valentina Tomassini, Derek K. Jones, Daniel Cremers
Since abnormal samples are not used during training, we define novelty metrics based on the (partially complementary) assumptions that the VAE is less capable of reconstructing abnormal samples well; that abnormal samples more strongly violate the VAE regularizer; and that abnormal samples differ from normal samples not only in input-feature space, but also in the VAE latent space and VAE output.
1 code implementation • CVPR 2018 • Bjoern Haefner, Yvain Quéau, Thomas Möllenhoff, Daniel Cremers
We put forward a principled variational approach for up-sampling a single depth map to the resolution of the companion color image provided by an RGB-D sensor.
no code implementations • ICLR 2019 • S. Hamid Rezatofighi, Roman Kaskman, Farbod T. Motlagh, Qinfeng Shi, Daniel Cremers, Laura Leal-Taixé, Ian Reid
We demonstrate the validity of this new formulation on two relevant vision problems: object detection, for which our formulation outperforms state-of-the-art detectors such as Faster R-CNN and YOLO, and a complex CAPTCHA test, where we observe that, surprisingly, our set based network acquired the ability of mimicking arithmetics without any rules being coded.
4 code implementations • 17 Apr 2018 • David Schubert, Thore Goll, Nikolaus Demmel, Vladyslav Usenko, Jörg Stückler, Daniel Cremers
For trajectory evaluation, we also provide accurate pose ground truth from a motion capture system at high frequency (120 Hz) at the start and end of the sequences which we accurately aligned with the camera and IMU measurements.
no code implementations • 16 Apr 2018 • Lukas von Stumberg, Vladyslav Usenko, Daniel Cremers
We present VI-DSO, a novel approach for visual-inertial odometry, which jointly estimates camera poses and sparse scene geometry by minimizing photometric and IMU measurement errors in a combined energy functional.
2 code implementations • 23 Jan 2018 • Elie Aljalbout, Vladimir Golkov, Yawar Siddiqui, Maximilian Strobel, Daniel Cremers
In this paper, we propose a systematic taxonomy of clustering methods that utilize deep neural networks.
1 code implementation • 19 Jan 2018 • Nikolaus Mayer, Eddy Ilg, Philipp Fischer, Caner Hazirbas, Daniel Cremers, Alexey Dosovitskiy, Thomas Brox
The finding that very large networks can be trained efficiently and reliably has led to a paradigm shift in computer vision from engineered solutions to learning formulations.
no code implementations • 16 Jan 2018 • Thomas Möllenhoff, Zhenzhang Ye, Tao Wu, Daniel Cremers
We present a novel preconditioning technique for proximal optimization methods that relies on graph algorithms to construct effective preconditioners.
no code implementations • ICLR 2018 • Jan Kukačka, Vladimir Golkov, Daniel Cremers
Regularization is one of the crucial ingredients of deep learning, yet the term regularization has various definitions, and regularization methods are often studied separately from each other.
no code implementations • 5 Oct 2017 • Paul Bergmann, Rui Wang, Daniel Cremers
We further show that our calibration can improve the performance of a state-of-the-art direct visual odometry method that works solely on pixel intensities, calibrating for photometric parameters in an online fashion in realtime.
no code implementations • 29 Sep 2017 • Yvain Quéau, Jean Mélou, Fabien Castan, Daniel Cremers, Jean-Denis Durou
A numerical solution to shape-from-shading under natural illumination is presented.
no code implementations • 25 Sep 2017 • Jean Mélou, Yvain Quéau, Jean-Denis Durou, Fabien Castan, Daniel Cremers
We tackle the problem of reflectance estimation from a set of multi-view images, assuming known geometry.
no code implementations • 18 Sep 2017 • Kevis-Kokitsi Maninis, Sergi Caelles, Yu-Hua Chen, Jordi Pont-Tuset, Laura Leal-Taixé, Daniel Cremers, Luc van Gool
Video Object Segmentation, and video processing in general, has been historically dominated by methods that rely on the temporal consistency and redundancy in consecutive video frames.
Semantic Segmentation
Semi-Supervised Video Object Segmentation
+2
no code implementations • 12 Sep 2017 • Robert Maier, Raphael Schaller, Daniel Cremers
State-of-the-art methods for large-scale 3D reconstruction from RGB-D sensors usually reduce drift in camera tracking by globally optimizing the estimated camera poses in real-time without simultaneously updating the reconstructed surface on pose changes.
no code implementations • ICCV 2017 • Rui Wang, Martin Schwörer, Daniel Cremers
We propose Stereo Direct Sparse Odometry (Stereo DSO) as a novel method for highly accurate real-time visual odometry estimation of large-scale environments from stereo cameras.
1 code implementation • ICCV 2017 • Robert Maier, Kihwan Kim, Daniel Cremers, Jan Kautz, Matthias Nießner
We introduce a novel method to obtain high-quality 3D reconstructions from consumer RGB-D sensors.
2 code implementations • ICCV 2017 • Philip Haeusser, Thomas Frerix, Alexander Mordvintsev, Daniel Cremers
Our training scheme follows the paradigm that in order to effectively derive class labels for the target domain, a network should produce statistically domain invariant embeddings, while minimizing the classification error on the labeled source domain.
Ranked #6 on
Domain Adaptation
on SYNSIG-to-GTSRB
1 code implementation • 1 Aug 2017 • Songyou Peng, Bjoern Haefner, Yvain Quéau, Daniel Cremers
A novel depth super-resolution approach for RGB-D sensors is presented.
1 code implementation • 25 Jul 2017 • Zorah Lähner, Matthias Vestner, Amit Boyarski, Or Litany, Ron Slossberg, Tal Remez, Emanuele Rodolà, Alex Bronstein, Michael Bronstein, Ron Kimmel, Daniel Cremers
We present a method to match three dimensional shapes under non-isometric deformations, topology changes and partiality.
no code implementations • 4 Jul 2017 • Yvain Quéau, Bastien Durix, Tao Wu, Daniel Cremers, François Lauze, Jean-Denis Durou
The second one directly recovers the depth, by formulating photometric stereo as a system of PDEs which are partially linearized using image ratios.
no code implementations • CVPR 2017 • Mariano Jaimez, Thomas J. Cashman, Andrew Fitzgibbon, Javier Gonzalez-Jimenez, Daniel Cremers
We present a novel strategy to shrink and constrain a 3D model, represented as a smooth spline-like surface, within the visual hull of an object observed from one or multiple views.
no code implementations • CVPR 2017 • Yvain Queau, Tao Wu, Francois Lauze, Jean-Denis Durou, Daniel Cremers
This paper tackles the photometric stereo problem in the presence of inaccurate lighting, obtained either by calibration or by an uncalibrated photometric stereo method.
no code implementations • CVPR 2017 • Miroslava Slavcheva, Maximilian Baust, Daniel Cremers, Slobodan Ilic
We introduce a geometry-driven approach for real-time 3D reconstruction of deforming surfaces from a single RGB-D stream without any templates or shape priors.
no code implementations • CVPR 2017 • Philip Haeusser, Alexander Mordvintsev, Daniel Cremers
We demonstrate the capabilities of learning by association on several data sets and show that it can improve performance on classification tasks tremendously by making use of additionally available unlabeled data.
1 code implementation • ICLR 2018 • Thomas Frerix, Thomas Möllenhoff, Michael Moeller, Daniel Cremers
Specifically, we show that backpropagation of a prediction error is equivalent to sequential gradient descent steps on a quadratic penalty energy, which comprises the network activations as variables of the optimization.
1 code implementation • 3 Jun 2017 • Philip Häusser, Alexander Mordvintsev, Daniel Cremers
We demonstrate the capabilities of learning by association on several data sets and show that it can improve performance on classification tasks tremendously by making use of additionally available unlabeled data.
no code implementations • 23 May 2017 • Roberto Henschel, Laura Leal-Taixé, Daniel Cremers, Bodo Rosenhahn
In order to track all persons in a scene, the tracking-by-detection paradigm has proven to be a very effective approach.
Ranked #21 on
Multi-Object Tracking
on MOT16
no code implementations • CVPR 2018 • Emanuel Laude, Jan-Hendrik Lange, Jonas Schüpfer, Csaba Domokos, Laura Leal-Taixé, Frank R. Schmidt, Bjoern Andres, Daniel Cremers
This paper introduces a novel algorithm for transductive inference in higher-order MRFs, where the unary energies are parameterized by a variable classifier.
no code implementations • 11 May 2017 • Nan Yang, Rui Wang, Xiang Gao, Daniel Cremers
Monocular visual odometry (VO) and simultaneous localization and mapping (SLAM) have seen tremendous improvements in accuracy, robustness and efficiency, and have gained increasing popularity over recent years.
Monocular Visual Odometry
Simultaneous Localization and Mapping
no code implementations • 13 Apr 2017 • Vladimir Golkov, Marcin J. Skwark, Atanas Mirchev, Georgi Dikov, Alexander R. Geanes, Jeffrey Mendenhall, Jens Meiler, Daniel Cremers
In this paper, we show that deep learning can predict biological function of molecules directly from their raw 3D approximated electron density and electrostatic potential fields.
1 code implementation • ICCV 2017 • Tim Meinhardt, Michael Moeller, Caner Hazirbas, Daniel Cremers
While variational methods have been among the most powerful tools for solving linear inverse problems in imaging, deep (convolutional) neural networks have recently taken the lead in many challenging benchmarks.
no code implementations • 10 Apr 2017 • Laura Leal-Taixé, Anton Milan, Konrad Schindler, Daniel Cremers, Ian Reid, Stefan Roth
Standardized benchmarks are crucial for the majority of computer vision applications.
5 code implementations • 4 Apr 2017 • Caner Hazirbas, Sebastian Georg Soyer, Maximilian Christian Staab, Laura Leal-Taixé, Daniel Cremers
Depth from focus (DFF) is one of the classical ill-posed inverse problems in computer vision.
no code implementations • 2 Apr 2017 • Yvain Quéau, Jean Mélou, Jean-Denis Durou, Daniel Cremers
We introduce a variational method for multi-view shape-from-shading under natural illumination.
no code implementations • 26 Mar 2017 • Lingni Ma, Jörg Stückler, Christian Kerl, Daniel Cremers
At test time, the semantics predictions of our network can be fused more consistently in semantic keyframe maps than predictions of a network trained on individual views.
no code implementations • 23 Mar 2017 • Martin Benning, Michael Möller, Raz Z. Nossek, Martin Burger, Daniel Cremers, Guy Gilboa, Carola-Bibiane Schönlieb
In this paper we demonstrate that the framework of nonlinear spectral decompositions based on total variation (TV) regularization is very well suited for image fusion as well as more general image manipulation tasks.
2 code implementations • 4 Mar 2017 • Vladyslav Usenko, Lukas von Stumberg, Andrej Pangercic, Daniel Cremers
In this paper, we present a real-time approach to local trajectory replanning for microaerial vehicles (MAVs).
Robotics
no code implementations • CVPR 2017 • Matthias Vestner, Roee Litman, Emanuele Rodolà, Alex Bronstein, Daniel Cremers
Many algorithms for the computation of correspondences between deformable shapes rely on some variant of nearest neighbor matching in a descriptor space.
no code implementations • 12 Dec 2016 • Sahand Sharifzadeh, Ioannis Chiotellis, Rudolph Triebel, Daniel Cremers
We propose an inverse reinforcement learning (IRL) approach using Deep Q-Networks to extract the rewards in problems with large state spaces.
no code implementations • NeurIPS 2016 • Vladimir Golkov, Marcin J. Skwark, Antonij Golkov, Alexey Dosovitskiy, Thomas Brox, Jens Meiler, Daniel Cremers
A contact map is a compact representation of the three-dimensional structure of a protein via the pairwise contacts between the amino acid constituting the protein.
1 code implementation • 23 Nov 2016 • Jonas Geiping, Hendrik Dirks, Daniel Cremers, Michael Moeller
The idea of video super resolution is to use different view points of a single scene to enhance the overall resolution and quality.
no code implementations • ICCV 2017 • Florian Walch, Caner Hazirbas, Laura Leal-Taixé, Torsten Sattler, Sebastian Hilsenbeck, Daniel Cremers
In this work we propose a new CNN+LSTM architecture for camera pose regression for indoor and outdoor scenes.
no code implementations • ICCV 2017 • Thomas Möllenhoff, Daniel Cremers
In this work we show how sublabel-accurate multilabeling approaches can be derived by approximating a classical label-continuous convex relaxation of nonconvex free-discontinuity problems.
no code implementations • CVPR 2017 • Florian Bernard, Frank R. Schmidt, Johan Thunberg, Daniel Cremers
We propose a combinatorial solution for the problem of non-rigidly matching a 3D shape to 3D image data.
4 code implementations • CVPR 2017 • Sergi Caelles, Kevis-Kokitsi Maninis, Jordi Pont-Tuset, Laura Leal-Taixé, Daniel Cremers, Luc van Gool
This paper tackles the task of semi-supervised video object segmentation, i. e., the separation of an object from the background in a video, given the mask of the first frame.
Semi-Supervised Video Object Segmentation
Video Segmentation
+1
no code implementations • 27 Sep 2016 • Maksym Dzitsiuk, Jürgen Sturm, Robert Maier, Lingni Ma, Daniel Cremers
Our implementation is optimized to run in real-time on mobile devices such as the Tango tablet.
no code implementations • 26 Sep 2016 • Lukas von Stumberg, Vladyslav Usenko, Jakob Engel, Jörg Stückler, Daniel Cremers
Micro aerial vehicles (MAVs) are strongly limited in their payload and power capacity.
no code implementations • 12 Jul 2016 • Matthias Vestner, Roee Litman, Alex Bronstein, Emanuele Rodolà, Daniel Cremers
Many algorithms for the computation of correspondences between deformable shapes rely on some variant of nearest neighbor matching in a descriptor space.
no code implementations • 9 Jul 2016 • Jakob Engel, Vladyslav Usenko, Daniel Cremers
We present a dataset for evaluating the tracking accuracy of monocular visual odometry and SLAM methods.
2 code implementations • 9 Jul 2016 • Jakob Engel, Vladlen Koltun, Daniel Cremers
We propose a novel direct sparse visual odometry formulation.
1 code implementation • 7 Apr 2016 • Emanuel Laude, Thomas Möllenhoff, Michael Moeller, Jan Lellmann, Daniel Cremers
Convex relaxations of nonconvex multilabel problems have been demonstrated to produce superior (provably optimal or near-optimal) solutions to a variety of classical computer vision problems.
no code implementations • CVPR 2016 • Zorah Lähner, Emanuele Rodolà, Frank R. Schmidt, Michael M. Bronstein, Daniel Cremers
We propose the first algorithm for non-rigid 2D-to-3D shape matching, where the input is a 2D shape represented as a planar curve and a 3D shape represented as a surface; the output is a continuous curve on the surface.
4 code implementations • CVPR 2016 • Nikolaus Mayer, Eddy Ilg, Philip Häusser, Philipp Fischer, Daniel Cremers, Alexey Dosovitskiy, Thomas Brox
By combining a flow and disparity estimation network and training it jointly, we demonstrate the first scene flow estimation with a convolutional network.
2 code implementations • CVPR 2016 • Thomas Möllenhoff, Emanuel Laude, Michael Moeller, Jan Lellmann, Daniel Cremers
We propose a novel spatially continuous framework for convex relaxations based on functional lifting.
no code implementations • ICCV 2015 • Christian Kerl, Jorg Stuckler, Daniel Cremers
Using a continuous trajectory representation has a number of advantages over a discrete-time representation (e. g. camera poses at the frame interval).
no code implementations • ICCV 2015 • Michael Moeller, Julia Diebold, Guy Gilboa, Daniel Cremers
This paper presents the idea of learning optimal filters for color image reconstruction based on a novel concept of nonlinear spectral image decompositions recently proposed by Guy Gilboa.
no code implementations • ICCV 2015 • Mohamed Souiai, Martin R. Oswald, Youngwook Kee, Junmo Kim, Marc Pollefeys, Daniel Cremers
Despite their enormous success in solving hard combinatorial problems, convex relaxation approaches often suffer from the fact that the computed solutions are far from binary and that subsequent heuristic binarization may substantially degrade the quality of computed solutions.
no code implementations • ICCV 2015 • Jan Stuhmer, Sebastian Nowozin, Andrew Fitzgibbon, Richard Szeliski, Travis Perry, Sunil Acharya, Daniel Cremers, Jamie Shotton
In this paper, we show how to perform model-based object tracking which allows to reconstruct the object's depth at an order of magnitude higher frame-rate through simple modifications to an off-the-shelf depth camera.
no code implementations • 6 Aug 2015 • Joan Duran, Michael Moeller, Catalina Sbert, Daniel Cremers
Even after over two decades, the total variation (TV) remains one of the most popular regularizations for image processing problems and has sparked a tremendous amount of research, particularly to move from scalar to vector-valued functions.
no code implementations • 18 Jun 2015 • Emanuele Rodolà, Michael Moeller, Daniel Cremers
Since their introduction in the shape analysis community, functional maps have met with considerable success due to their ability to compactly represent dense correspondences between deformable shapes, with applications ranging from shape matching and image segmentation, to exploration of large shape collections.
1 code implementation • 17 Jun 2015 • Emanuele Rodolà, Luca Cosmo, Michael M. Bronstein, Andrea Torsello, Daniel Cremers
In this paper, we propose a method for computing partial functional correspondence between non-rigid shapes.
no code implementations • CVPR 2015 • Filippo Bergamasco, Andrea Albarelli, Luca Cosmo, Andrea Torsello, Emanuele Rodola, Daniel Cremers
This results in several drawbacks, ranging from the difficulties in feature detection, due to the reduced size of each microlens, to the need to adopt a model with a relatively small number of parameters.
16 code implementations • ICCV 2015 • Philipp Fischer, Alexey Dosovitskiy, Eddy Ilg, Philip Häusser, Caner Hazırbaş, Vladimir Golkov, Patrick van der Smagt, Daniel Cremers, Thomas Brox
Optical flow estimation has not been among the tasks where CNNs were successful.
1 code implementation • 1 Aug 2014 • Michael Moeller, Martin Benning, Carola Schönlieb, Daniel Cremers
This paper deals with the problem of reconstructing a depth map from a sequence of differently focused images, also known as depth from focus or shape from focus.