Search Results for author: Peter H. N. de With

Found 30 papers, 5 papers with code

uTRAND: Unsupervised Anomaly Detection in Traffic Trajectories

no code implementations19 Apr 2024 Giacomo D'Amicantonio, Egor Bondarau, Peter H. N. de With

Deep learning-based approaches have achieved significant improvements on public video anomaly datasets, but often do not perform well in real-world applications.

Trajectory Prediction Unsupervised Anomaly Detection

Detection of Object Throwing Behavior in Surveillance Videos

no code implementations11 Mar 2024 Ivo P. C. Kersten, Erkut Akdag, Egor Bondarev, Peter H. N. de With

Second, we compare the performance of different feature extractors for our anomaly detection method on the UCF-Crime and Throwing-Action datasets.

Action Detection Anomaly Detection +1

Transformer-based Fusion of 2D-pose and Spatio-temporal Embeddings for Distracted Driver Action Recognition

no code implementations11 Mar 2024 Erkut Akdag, Zeqi Zhu, Egor Bondarev, Peter H. N. de With

The model uses 2D-pose features as the positional embedding of the transformer architecture and spatio-temporal features as the main input to the encoder of the transformer.

2D Human Pose Estimation Action Recognition +3

Density-Guided Label Smoothing for Temporal Localization of Driving Actions

no code implementations11 Mar 2024 Tunc Alkanat, Erkut Akdag, Egor Bondarev, Peter H. N. de With

Temporal localization of driving actions plays a crucial role in advanced driver-assistance systems and naturalistic driving studies.

Action Recognition Temporal Action Localization +1

Automated Camera Calibration via Homography Estimation with GNNs

no code implementations5 Nov 2023 Giacomo D'Amicantonio, Egor Bondarev, Peter H. N. de With

We propose a framework involving the generation of a set of synthetic intersection viewpoint images from a bird's-eye-view image, framed as a graph of virtual cameras to model these images.

Camera Calibration Homography Estimation +1

Homography Estimation in Complex Topological Scenes

no code implementations2 Aug 2023 Giacomo D'Amicantonio, Egor Bondarau, Peter H. N. de With

Surveillance videos and images are used for a broad set of applications, ranging from traffic analysis to crime detection.

Camera Calibration Homography Estimation

A signal processing interpretation of noise-reduction convolutional neural networks

no code implementations25 Jul 2023 Luis A. Zavala-Mondragón, Peter H. N. de With, Fons van der Sommen

Encoding-decoding CNNs play a central role in data-driven noise reduction and can be found within numerous deep-learning algorithms.

Probabilistic 3D segmentation for aleatoric uncertainty quantification in full 3D medical data

1 code implementation1 May 2023 Christiaan G. A. Viviers, Amaan M. M. Valiuddin, Peter H. N. de With, Fons van der Sommen

To this end, we have developed a 3D probabilistic segmentation framework augmented with NFs, to enable capturing the distributions of various complexity.

Decision Making Lung Nodule Segmentation +3

Towards real-time 6D pose estimation of objects in single-view cone-beam X-ray

no code implementations6 Nov 2022 Christiaan G. A. Viviers, Joel de Bruijn, Lena Filatova, Peter H. N. de With, Fons van der Sommen

Deep learning-based pose estimation algorithms can successfully estimate the pose of objects in an image, especially in the field of color images.

6D Pose Estimation 6D Pose Estimation using RGB

Medical Instrument Segmentation in 3D US by Hybrid Constrained Semi-Supervised Learning

no code implementations30 Jul 2021 Hongxu Yang, Caifeng Shan, R. Arthur Bouwman, Lukas R. C. Dekker, Alexander F. Kolen, Peter H. N. de With

These results are better than the state-of-the-art SSL methods and the inference time is comparable to the supervised approaches.

Segmentation

Safe Fakes: Evaluating Face Anonymizers for Face Detectors

no code implementations23 Apr 2021 Sander R. Klomp, Matthew van Rijn, Rob G. J. Wijnhoven, Cees G. M. Snoek, Peter H. N. de With

Our experiments investigate the suitability of anonymization methods for maintaining face detector performance, the effect of detectors overtraining on anonymization artefacts, dataset size for training an anonymizer, and the effect of training time of anonymization GANs.

Face Detection Generative Adversarial Network +1

Medical Instrument Detection in Ultrasound-Guided Interventions: A Review

no code implementations9 Jul 2020 Hongxu Yang, Caifeng Shan, Alexander F. Kolen, Peter H. N. de With

Medical instrument detection is essential for computer-assisted interventions since it would facilitate the surgeons to find the instrument efficiently with a better interpretation, which leads to a better outcome.

Deep Q-Network-Driven Catheter Segmentation in 3D US by Hybrid Constrained Semi-Supervised Learning and Dual-UNet

no code implementations25 Jun 2020 Hongxu Yang, Caifeng Shan, Alexander F. Kolen, Peter H. N. de With

To train the Dual-UNet with limited labeled images and leverage information of unlabeled images, we propose a novel semi-supervised scheme, which exploits unlabeled images based on hybrid constraints from predictions.

Q-Learning

Contextual Pyramid Attention Network for Building Segmentation in Aerial Imagery

no code implementations15 Apr 2020 Clint Sebastian, Raffaele Imbriaco, Egor Bondarev, Peter H. N. de With

Building extraction from aerial images has several applications in problems such as urban planning, change detection, and disaster management.

Change Detection Management +3

Gradient Boosting on Decision Trees for Mortality Prediction in Transcatheter Aortic Valve Implantation

no code implementations8 Jan 2020 Marco Mamprin, Jo M. Zelis, Pim A. L. Tonino, Svitlana Zinger, Peter H. N. de With

In combination with a recent technique for model interpretations, we developed a feature analysis and selection stage, enabling to identify the most important features for the prediction.

BIG-bench Machine Learning Mortality Prediction +1

Aggregated Deep Local Features for Remote Sensing Image Retrieval

no code implementations22 Mar 2019 Raffaele Imbriaco, Clint Sebastian, Egor Bondarev, Peter H. N. de With

In this paper, we present an image retrieval pipeline that uses attentive, local convolutional features and aggregates them using the Vector of Locally Aggregated Descriptors (VLAD) to produce a global descriptor.

Dimensionality Reduction Image Retrieval +1

LiDAR-assisted Large-scale Privacy Protection in Street-view Cycloramas

no code implementations13 Mar 2019 Clint Sebastian, Bas Boom, Egor Bondarev, Peter H. N. de With

We propose a system that is cost-effective even after increasing the resolution by a factor of 2. 5.

Improving Catheter Segmentation & Localization in 3D Cardiac Ultrasound Using Direction-Fused FCN

no code implementations14 Feb 2019 Hongxu Yang, Caifeng Shan, Alexander F. Kolen, Peter H. N. de With

Fast and accurate catheter detection in cardiac catheterization using harmless 3D ultrasound (US) can improve the efficiency and outcome of the intervention.

Bootstrapped CNNs for Building Segmentation on RGB-D Aerial Imagery

no code implementations8 Oct 2018 Clint Sebastian, Bas Boom, Thijs van Lankveld, Egor Bondarev, Peter H. N. de With

Detection of buildings and other objects from aerial images has various applications in urban planning and map making.

Conditional Transfer with Dense Residual Attention: Synthesizing traffic signs from street-view imagery

no code implementations5 Sep 2018 Clint Sebastian, Ries Uittenbogaard, Julien Vijverberg, Bas Boom, Peter H. N. de With

We have performed detection and classification tests across a large number of traffic sign classes, by training the detector using the combination of real and generated data.

Asset Management Autonomous Driving +4

Free-Space Detection with Self-Supervised and Online Trained Fully Convolutional Networks

no code implementations8 Apr 2016 Willem P. Sanberg, Gijs Dubbelman, Peter H. N. de With

Experiments show that the online training boosts performance with 5% when compared to offline training, both for Fmax and AP.

Cannot find the paper you are looking for? You can Submit a new open access paper.