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Medical image analysis tasks often focus on regions or structures located in a particular location within the patient's body. Often large parts of the image may not be of interest for the image analysis task. When using deep-learning based…

Computer Vision and Pattern Recognition · Computer Science 2024-11-01 Thomas Buddenkotte , Roland Opfer , Julia Krüger , Alessa Hering , Mireia Crispin-Ortuzar

Magnetic Resonance Imaging (MRI) offers unparalleled soft-tissue contrast but is fundamentally limited by long acquisition times. While deep learning-based accelerated MRI can dramatically shorten scan times, the reconstruction from…

Image and Video Processing · Electrical Eng. & Systems 2025-08-22 Paul Fischer , Jan Nikolas Morshuis , Thomas Küstner , Christian Baumgartner

Multi-spectral computed tomography is an emerging technology for the non-destructive identification of object materials and the study of their physical properties. Applications of this technology can be found in various scientific and…

Computer Vision and Pattern Recognition · Computer Science 2018-10-30 Christian Kehl , Wail Mustafa , Jan Kehres , Anders Bjorholm Dahl , Ulrik Lund Olsen

MRI is an inherently slow process, which leads to long scan time for high-resolution imaging. The speed of acquisition can be increased by ignoring parts of the data (undersampling). Consequently, this leads to the degradation of image…

Image and Video Processing · Electrical Eng. & Systems 2022-02-22 Soumick Chatterjee , Mario Breitkopf , Chompunuch Sarasaen , Hadya Yassin , Georg Rose , Andreas Nürnberger , Oliver Speck

Purpose: To propose an alternating learning approach to learn the sampling pattern (SP) and the parameters of variational networks (VN) in accelerated parallel magnetic resonance imaging (MRI). Methods: The approach alternates between…

Image and Video Processing · Electrical Eng. & Systems 2021-10-29 Marcelo V. W. Zibetti , Florian Knoll , Ravinder R. Regatte

A novel framework to construct an efficient sensing (measurement) matrix, called mixed adaptive-random (MAR) matrix, is introduced for directly acquiring a compressed image representation. The mixed sampling (sensing) procedure hybridizes…

Information Theory · Computer Science 2015-04-07 Jun Yang , Wei E. I. Sha , Hongyang Chao , Zhu Jin

Pedestrian attribute recognition (PAR) is a fundamental perception task in intelligent transportation and security. To tackle this fine-grained task, most existing methods focus on extracting regional features to enrich attribute…

Computer Vision and Pattern Recognition · Computer Science 2025-07-01 Hongyan An , Kuan Zhu , Xin He , Haiyun Guo , Chaoyang Zhao , Ming Tang , Jinqiao Wang

We introduce MoRAG, a novel multi-part fusion based retrieval-augmented generation strategy for text-based human motion generation. The method enhances motion diffusion models by leveraging additional knowledge obtained through an improved…

Computer Vision and Pattern Recognition · Computer Science 2024-12-11 Sai Shashank Kalakonda , Shubh Maheshwari , Ravi Kiran Sarvadevabhatla

Modern tomography involves gathering projection data from multiple directions and feeding them into a software algorithm for tomographic reconstruction. We focus our study on image reconstruction from Radon data in the setting of…

Numerical Analysis · Mathematics 2014-12-19 Maria Angela Narduzzo

Objective. Dual-energy computed tomography (DECT) has the potential to improve contrast, reduce artifacts and the ability to perform material decomposition in advanced imaging applications. The increased number or measurements results with…

Image and Video Processing · Electrical Eng. & Systems 2022-03-14 Alessandro Perelli , Suxer Alfonso Garcia , Alexandre Bousse , Jean-Pierre Tasu , Nikolaos Efthimiadis , Dimitris Visvikis

Many post-processing algorithms have been developed in order to better separate the signal of a companion from the bright light of the host star, but the effect of such algorithms on the shape of exoplanet spectra extracted from integral…

Earth and Planetary Astrophysics · Physics 2023-10-04 Evert Nasedkin , Paul Mollière , Jason Wang , Faustine Cantalloube , Laura Kreidberg , Laurent Pueyo , Tomas Stolker , Arthur Vigan

Ultrafast imaging modes, such as coherent plane-wave compounding (CPWC), capture a large field of view in a single pulse-echo measurement using parallel receive focusing. The number of foci or, equivalently, the number of volume elements…

Medical Physics · Physics 2022-12-22 Martin F. Schiffner

Motion retrieval is crucial for motion acquisition, offering superior precision, realism, controllability, and editability compared to motion generation. Existing approaches leverage contrastive learning to construct a unified embedding…

Computer Vision and Pattern Recognition · Computer Science 2025-08-01 Shiyao Yu , Zi-An Wang , Kangning Yin , Zheng Tian , Mingyuan Zhang , Weixin Si , Shihao Zou

Object detection in aerial images is a challenging task due to the following reasons: (1) objects are small and dense relative to images; (2) the object scale varies in a wide range; (3) the number of object in different classes is…

Computer Vision and Pattern Recognition · Computer Science 2020-10-27 Zhiwei Wei , Chenzhen Duan , Xinghao Song , Ye Tian , Hongpeng Wang

We implemented and evaluated a multiple resolution residual network (MRRN) for multiple normal organs-at-risk (OAR) segmentation from computed tomography (CT) images for thoracic radiotherapy treatment (RT) planning. Our approach…

Image and Video Processing · Electrical Eng. & Systems 2020-06-02 Hyemin Um , Jue Jiang , Maria Thor , Andreas Rimner , Leo Luo , Joseph O. Deasy , Harini Veeraraghavan

Rotated object detection aims to identify and locate objects in images with arbitrary orientation. In this scenario, the oriented directions of objects vary considerably across different images, while multiple orientations of objects exist…

Computer Vision and Pattern Recognition · Computer Science 2023-09-22 Yifan Pu , Yiru Wang , Zhuofan Xia , Yizeng Han , Yulin Wang , Weihao Gan , Zidong Wang , Shiji Song , Gao Huang

Magnetic resonance (MR) protocols rely on several sequences to assess pathology and organ status properly. Despite advances in image analysis, we tend to treat each sequence, here termed modality, in isolation. Taking advantage of the…

Computer Vision and Pattern Recognition · Computer Science 2020-11-11 Agisilaos Chartsias , Giorgos Papanastasiou , Chengjia Wang , Scott Semple , David E. Newby , Rohan Dharmakumar , Sotirios A. Tsaftaris

Purpose: To develop an automated machine-learning-based method for the discovery of rapid and quantitative chemical exchange saturation transfer (CEST) MR fingerprinting acquisition and reconstruction protocols. Methods: An MR physics…

Medical Physics · Physics 2022-02-01 Or Perlman , Bo Zhu , Moritz Zaiss , Matthew S. Rosen , Christian T. Farrar

Object detection and classification using aerial images is a challenging task as the information regarding targets are not abundant. Synthetic Aperture Radar(SAR) images can be used for Automatic Target Recognition(ATR) systems as it can…

Computer Vision and Pattern Recognition · Computer Science 2022-12-15 Sumanth Udupa , Aniruddh Sikdar , Suresh Sundaram

Tracking organ motion is important in image-guided interventions, but motion annotations are not always easily available. Thus, we propose Repetitive Motion Estimation Network (RMEN) to recover cardiac and respiratory signals. It learns the…

Computer Vision and Pattern Recognition · Computer Science 2018-11-09 Xiaoxiao Li , Vivek Singh , Yifan Wu , Klaus Kirchberg , James Duncan , Ankur Kapoor