Search Results for author: Bernd Freisleben

Found 12 papers, 4 papers with code

ElasticHash: Semantic Image Similarity Search by Deep Hashing with Elasticsearch

1 code implementation8 May 2023 Nikolaus Korfhage, Markus Mühling, Bernd Freisleben

It is based on a deep hashing model to learn hash codes for fine-grained image similarity search in natural images and a two-stage method for efficiently searching binary hash codes using Elasticsearch (ES).

Deep Hashing Image Similarity Search +1

Leveraging Statistical Shape Priors in GAN-based ECG Synthesis

no code implementations22 Oct 2022 Nour Neifar, Achraf Ben-Hamadou, Afef Mdhaffar, Mohamed Jmaiel, Bernd Freisleben

Electrocardiogram (ECG) data collection during emergency situations is challenging, making ECG data generation an efficient solution for dealing with highly imbalanced ECG training datasets.

ECG Classification

Efficient Complex Event Processing in Information-centric Networking at the Edge

1 code implementation9 Dec 2020 Manisha Luthra, Johannes Pfannmüller, Boris Koldehofe, Jonas Höchst, Artur Sterz, Rhaban Hark, Bernd Freisleben

Information-centric Networking (ICN) is an emerging Internet architecture that offers promising features, such as in-network caching and named data addressing, to support the edge computing paradigm, in particular Internet-of-Things (IoT) applications.

Edge-computing Distributed, Parallel, and Cluster Computing Networking and Internet Architecture

Smart Street Lights and Mobile Citizen Apps for Resilient Communication in a Digital City

no code implementations27 Aug 2019 Lars Baumgärtner, Jonas Höchst, Patrick Lampe, Ragnar Mogk, Artur Sterz, Pascal Weisenburger, Mira Mezini, Bernd Freisleben

In future smart cities, a more resilient urban infrastructure is imperative to handle the increasing number of hazardous situations.

Human-Computer Interaction Computers and Society

DTN7: An Open-Source Disruption-tolerant Networking Implementation of Bundle Protocol 7

1 code implementation27 Aug 2019 Alvar Penning, Lars Baumgärtner, Jonas Höchst, Artur Sterz, Mira Mezini, Bernd Freisleben

In disruption-tolerant networking (DTN), data is transmitted in a store-carry-forward fashion from network node to network node.

Networking and Internet Architecture

Investigating Correlations of Inter-coder Agreement and Machine Annotation Performance for Historical Video Data

no code implementations24 Jul 2019 Kader Pustu-Iren, Markus Mühling, Nikolaus Korfhage, Joanna Bars, Sabrina Bernhöft, Angelika Hörth, Bernd Freisleben, Ralph Ewerth

Video indexing approaches such as visual concept classification and person recognition are essential to enable fine-grained semantic search in large-scale video archives such as the historical video collection of former German Democratic Republic (GDR) maintained by the German Broadcasting Archive (DRA).

Classification General Classification +1

Learning Wi-Fi Connection Loss Predictions for Seamless Vertical Handovers Using Multipath TCP

2 code implementations24 Jul 2019 Jonas Höchst, Artur Sterz, Alexander Frömmgen, Denny Stohr, Ralf Steinmetz, Bernd Freisleben

The experiments show that our approach provides seamless wireless connectivity, improves quality of experience of DASH video streaming, and requires less cellular data compared to handover approaches without Wi-Fi connection loss predictions.

Detection and Visualization of Endoleaks in CT Data for Monitoring of Thoracic and Abdominal Aortic Aneurysm Stents

no code implementations9 Feb 2016 Jing Lu, Jan Egger, Andreas Wimmer, Stefan Großkopf, Bernd Freisleben

The aneurysm segmentation includes two steps: first, the inner boundary is segmented based on a grey level model with two thresholds; then, an adapted active contour model approach is applied to the more complicated outer boundary segmentation, with its initialization based on the available inner boundary segmentation.

Anatomy Segmentation

Preoperative Volume Determination for Pituitary Adenoma

no code implementations5 Feb 2016 Dzenan Zukic, Jan Egger, Miriam H. A. Bauer, Daniela Kuhnt, Barbara Carl, Bernd Freisleben, Andreas Kolb, Christopher Nimsky

The most common sellar lesion is the pituitary adenoma, and sellar tumors are approximately 10-15% of all intracranial neoplasms.

Segmentation

Cube-Cut: Vertebral Body Segmentation in MRI-Data through Cubic-Shaped Divergences

no code implementations17 Apr 2014 Robert Schwarzenberg, Bernd Freisleben, Christopher Nimsky, Jan Egger

The Cube-Cut algorithm generates a directed graph with two terminal nodes (s-t-network), where the nodes of the graph correspond to a cubic-shaped subset of the image's voxels.

graph construction

Determination, Calculation and Representation of the Upper and Lower Sealing Zones During Virtual Stenting of Aneurysms

no code implementations21 Oct 2013 Jan Egger, Miriam H. A. Bauer, Stefan Großkopf, Christina Biermann, Bernd Freisleben, Christopher Nimsky

In this contribution, a novel method for stent simulation in preoperative computed tomography angiography (CTA) acquisitions of patients is presented where the sealing zones are automatically calculated and visualized.

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