Search Results for author: Peter M. Roth

Found 21 papers, 2 papers with code

Automated cross-sectional view selection in CT angiography of aortic dissections with uncertainty awareness and retrospective clinical annotations

no code implementations22 Nov 2021 Antonio Pepe, Jan Egger, Marina Codari, Martin J. Willemink, Christina Gsaxner, Jianning Li, Peter M. Roth, Gabriel Mistelbauer, Dieter Schmalstieg, Dominik Fleischmann

Conclusion: This suggests that pre-existing annotations can be an inexpensive resource in clinics to ease ill-posed and repetitive tasks like cross-section extraction for surveillance of aortic dissections.

Uncertainty Quantification

ALCN: Adaptive Local Contrast Normalization

no code implementations15 Apr 2020 Mahdi Rad, Peter M. Roth, Vincent Lepetit

We show that our method significantly outperforms standard normalization methods and would also be appear to be universal since it does not have to be re-trained for each new application.

3D Object Detection Face Recognition +1

Performing Arithmetic Using a Neural Network Trained on Digit Permutation Pairs

no code implementations6 Dec 2019 Marcus D. Bloice, Peter M. Roth, Andreas Holzinger

In this paper a neural network is trained to perform simple arithmetic using images of concatenated handwritten digit pairs.

Patch augmentation: Towards efficient decision boundaries for neural networks

1 code implementation8 Nov 2019 Marcus D. Bloice, Peter M. Roth, Andreas Holzinger

In this paper we propose a new augmentation technique, called patch augmentation, that, in our experiments, improves model accuracy and makes networks more robust to adversarial attacks.

Adversarial Attack

Smart Hypothesis Generation for Efficient and Robust Room Layout Estimation

no code implementations27 Oct 2019 Martin Hirzer, Peter M. Roth, Vincent Lepetit

We propose a novel method to efficiently estimate the spatial layout of a room from a single monocular RGB image.

Room Layout Estimation Segmentation +1

L*ReLU: Piece-wise Linear Activation Functions for Deep Fine-grained Visual Categorization

no code implementations27 Oct 2019 Mina Basirat, Peter M. Roth

We demonstrate our approach for the task of Fine-grained Visual Categorization (FGVC), running experiments on seven different benchmark datasets.

Computational Efficiency Fine-Grained Visual Categorization

Location Field Descriptors: Single Image 3D Model Retrieval in the Wild

no code implementations7 Aug 2019 Alexander Grabner, Peter M. Roth, Vincent Lepetit

We present Location Field Descriptors, a novel approach for single image 3D model retrieval in the wild.

Retrieval

Exploit fully automatic low-level segmented PET data for training high-level deep learning algorithms for the corresponding CT data

no code implementations7 Mar 2019 Christina Gsaxner, Peter M. Roth, Jürgen Wallner, Jan Egger

Since deep neural networks require a large amount of training data, specifically images and corresponding ground truth labels, we furthermore propose a method to generate such a suitable training data set from Positron Emission Tomography/Computed Tomography image data.

Bladder Segmentation Data Augmentation +4

The Quest for the Golden Activation Function

no code implementations2 Aug 2018 Mina Basirat, Peter M. Roth

To avoid the manual design or selection of activation functions, we build on the idea of genetic algorithms to learn the best activation function for a given task.

Image Classification

Towards the Augmented Pathologist: Challenges of Explainable-AI in Digital Pathology

no code implementations18 Dec 2017 Andreas Holzinger, Bernd Malle, Peter Kieseberg, Peter M. Roth, Heimo Müller, Robert Reihs, Kurt Zatloukal

The foundation of such an "augmented pathologist" needs an integrated approach: While machine learning algorithms require many thousands of training examples, a human expert is often confronted with only a few data points.

BIG-bench Machine Learning

ALCN: Meta-Learning for Contrast Normalization Applied to Robust 3D Pose Estimation

no code implementations31 Aug 2017 Mahdi Rad, Peter M. Roth, Vincent Lepetit

We therefore propose a novel illumination normalization method that lets us learn to detect objects and estimate their 3D pose under challenging illumination conditions from very few training samples.

3D Pose Estimation Meta-Learning

Learning to Align Semantic Segmentation and 2.5D Maps for Geolocalization

no code implementations CVPR 2017 Anil Armagan, Martin Hirzer, Peter M. Roth, Vincent Lepetit

We present an efficient method for geolocalization in urban environments starting from a coarse estimate of the location provided by a GPS and using a simple untextured 2. 5D model of the surrounding buildings.

Semantic Segmentation

Accurate Object Detection with Joint Classification-Regression Random Forests

no code implementations CVPR 2014 Samuel Schulter, Christian Leistner, Paul Wohlhart, Peter M. Roth, Horst Bischof

In this way, we can simultaneously predict the object probability of a window in a sliding window approach as well as regress its aspect ratio with a single model.

Classification General Classification +5

Occlusion Geodesics for Online Multi-Object Tracking

no code implementations CVPR 2014 Horst Possegger, Thomas Mauthner, Peter M. Roth, Horst Bischof

Robust multi-object tracking-by-detection requires the correct assignment of noisy detection results to object trajectories.

motion prediction Multi-Object Tracking +2

Robust Real-Time Tracking of Multiple Objects by Volumetric Mass Densities

no code implementations CVPR 2013 Horst Possegger, Sabine Sternig, Thomas Mauthner, Peter M. Roth, Horst Bischof

Combining foreground images from multiple views by projecting them onto a common ground-plane has been recently applied within many multi-object tracking approaches.

3D Object Tracking Multi-Object Tracking

Alternating Decision Forests

no code implementations CVPR 2013 Samuel Schulter, Paul Wohlhart, Christian Leistner, Amir Saffari, Peter M. Roth, Horst Bischof

Contrary to Boosted Trees, in our method the loss minimization is an inherent part of the tree growing process, thus allowing to keep the benefits of common Random Forests, such as, parallel processing.

object-detection Object Detection

Optimizing 1-Nearest Prototype Classifiers

no code implementations CVPR 2013 Paul Wohlhart, Martin Kostinger, Michael Donoser, Peter M. Roth, Horst Bischof

The development of complex, powerful classifiers and their constant improvement have contributed much to the progress in many fields of computer vision.

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