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Motion artifact is a major challenge in magnetic resonance imaging (MRI) that severely degrades image quality, reduces examination efficiency, and makes accurate diagnosis difficult. However, previous methods often relied on implicit models…

Image and Video Processing · Electrical Eng. & Systems 2023-06-21 Jiandong Su , Kun Shang , Dong Liang

Image manipulation detection is different from traditional semantic object detection because it pays more attention to tampering artifacts than to image content, which suggests that richer features need to be learned. We propose a…

Computer Vision and Pattern Recognition · Computer Science 2018-05-15 Peng Zhou , Xintong Han , Vlad I. Morariu , Larry S. Davis

Activity detection from first-person videos (FPV) captured using a wearable camera is an active research field with potential applications in many sectors, including healthcare, law enforcement, and rehabilitation. State-of-the-art methods…

Computer Vision and Pattern Recognition · Computer Science 2020-08-20 Asif Shahriyar Sushmit , Partho Ghosh , Md. Abrar Istiak , Nayeeb Rashid , Ahsan Habib Akash , Taufiq Hasan

Motion artifacts in Magnetic Resonance Imaging (MRI) arise due to relatively long acquisition times and can compromise the clinical utility of acquired images. Traditional motion correction methods often fail to address severe motion,…

Image and Video Processing · Electrical Eng. & Systems 2024-07-04 Ziad Al-Haj Hemidi , Christian Weihsbach , Mattias P. Heinrich

An attention guided scheme for metal artifact correction in MRI using deep neural network is proposed in this paper. The inputs of the networks are two distorted images obtained with dual-polarity readout gradients. With MR image generation…

Image and Video Processing · Electrical Eng. & Systems 2019-10-22 Jee Won Kim , Kinam Kwon , Byungjai Kim , HyunWook Park

Artifacts, blur and noise are the common distortions degrading MRI images during the acquisition process, and deep neural networks have been demonstrated to help in improving image quality. To well exploit global structural information and…

Image and Video Processing · Electrical Eng. & Systems 2021-04-15 Xiaobin Hu , Yanyang Yan , Wenqi Ren , Hongwei Li , Yu Zhao , Amirhossein Bayat , Bjoern Menze

We present a deep, bidirectional, recurrent framework for cleaning noisy and incomplete motion capture data. It exploits temporal coherence and joint correlations to infer adaptive filters for each joint in each frame. A single model can be…

Graphics · Computer Science 2017-12-12 Utkarsh Mall , G. Roshan Lal , Siddhartha Chaudhuri , Parag Chaudhuri

In MRI, motion artefacts are among the most common types of artefacts. They can degrade images and render them unusable for accurate diagnosis. Traditional methods, such as prospective or retrospective motion correction, have been proposed…

Image and Video Processing · Electrical Eng. & Systems 2020-12-01 Soumick Chatterjee , Alessandro Sciarra , Max Dünnwald , Steffen Oeltze-Jafra , Andreas Nürnberger , Oliver Speck

Human motion transfer refers to synthesizing photo-realistic and temporally coherent videos that enable one person to imitate the motion of others. However, current synthetic videos suffer from the temporal inconsistency in sequential…

Computer Vision and Pattern Recognition · Computer Science 2022-09-08 Guang Yang , Wu Liu , Xinchen Liu , Xiaoyan Gu , Juan Cao , Jintao Li

Head motion during functional Magnetic Resonance Imaging acquisition can significantly contaminate the neural signal and introduce spurious, distance-dependent changes in signal correlations. This can heavily confound studies of…

Image and Video Processing · Electrical Eng. & Systems 2020-01-23 Vyom Raval , Kevin P. Nguyen , Albert Montillo

Analyzing video for traffic categorization is an important pillar of Intelligent Transport Systems. However, it is difficult to analyze and predict traffic based on image frames because the representation of each frame may vary…

Computer Vision and Pattern Recognition · Computer Science 2019-02-19 Somdip Dey , Amit K. Singh , Dilip K. Prasad , Klaus D. McDonald-Maier

Despite the recent success of neural networks in image feature learning, a major problem in the video domain is the lack of sufficient labeled data for learning to model temporal information. In this paper, we propose an unsupervised…

Computer Vision and Pattern Recognition · Computer Science 2016-11-29 Linchao Zhu , Zhongwen Xu , Yi Yang

Motion artifacts are a pervasive problem in MRI, leading to misdiagnosis or mischaracterization in population-level imaging studies. Current retrospective rigid intra-slice motion correction techniques jointly optimize estimates of the…

Image and Video Processing · Electrical Eng. & Systems 2023-11-17 Nalini M. Singh , Neel Dey , Malte Hoffmann , Bruce Fischl , Elfar Adalsteinsson , Robert Frost , Adrian V. Dalca , Polina Golland

Magnetic resonance fingerprinting (MRF) provides a unique concept for simultaneous and fast acquisition of multiple quantitative MR parameters. Despite acquisition efficiency, adoption of MRF into the clinics is hindered by its dictionary…

Image and Video Processing · Electrical Eng. & Systems 2020-08-11 Fabian Balsiger , Alain Jungo , Olivier Scheidegger , Pierre G. Carlier , Mauricio Reyes , Benjamin Marty

Image animation aims to animate a source image by using motion learned from a driving video. Current state-of-the-art methods typically use convolutional neural networks (CNNs) to predict motion information, such as motion keypoints and…

Computer Vision and Pattern Recognition · Computer Science 2022-09-29 Jiale Tao , Biao Wang , Tiezheng Ge , Yuning Jiang , Wen Li , Lixin Duan

Reconstructing human dynamic vision from brain activity is a challenging task with great scientific significance. Although prior video reconstruction methods have made substantial progress, they still suffer from several limitations,…

Computer Vision and Pattern Recognition · Computer Science 2025-02-20 Yizhuo Lu , Changde Du , Chong Wang , Xuanliu Zhu , Liuyun Jiang , Xujin Li , Huiguang He

Time-of-flight (ToF) imaging has become a widespread technique for depth estimation, allowing affordable off-the-shelf cameras to provide depth maps in real time. However, multipath interference (MPI) resulting from indirect illumination…

Thanks to its capability of acquiring full-view frames at multiple kilohertz, ultrafast ultrasound imaging unlocked the analysis of rapidly changing physical phenomena in the human body, with pioneering applications such as ultrasensitive…

Image and Video Processing · Electrical Eng. & Systems 2020-12-22 Dimitris Perdios , Manuel Vonlanthen , Florian Martinez , Marcel Arditi , Jean-Philippe Thiran

Global motion compensation (GMC) removes the impact of camera motion and creates a video in which the background appears static over the progression of time. Various vision problems, such as human activity recognition, background…

Computer Vision and Pattern Recognition · Computer Science 2016-03-15 S. Morteza Safdarnejad , Yousef Atoum , Xiaoming Liu

Motion artifacts degrade MRI image quality and increase patient recalls. Existing automated quality assessment methods are largely limited to binary decisions and provide little interpretability. We introduce AutoMAC-MRI, an explainable…

Computer Vision and Pattern Recognition · Computer Science 2025-12-18 Antony Jerald , Dattesh Shanbhag , Sudhanya Chatterjee