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Tagged magnetic resonance imaging~(MRI) has been used for decades to observe and quantify the detailed motion of deforming tissue. However, this technique faces several challenges such as tag fading, large motion, long computation times,…

Image and Video Processing · Electrical Eng. & Systems 2023-05-02 Zhangxing Bian , Fangxu Xing , Jinglun Yu , Muhan Shao , Yihao Liu , Aaron Carass , Jiachen Zhuo , Jonghye Woo , Jerry L. Prince

Tagged magnetic resonance imaging (tMRI) has been employed for decades to measure the motion of tissue undergoing deformation. However, registration-based motion estimation from tMRI is difficult due to the periodic patterns in these…

Image and Video Processing · Electrical Eng. & Systems 2023-08-08 Zhangxing Bian , Shuwen Wei , Yihao Liu , Junyu Chen , Jiachen Zhuo , Fangxu Xing , Jonghye Woo , Aaron Carass , Jerry L. Prince

We propose a novel heart rate (HR) estimation method from facial videos that dynamically adapts the HR pulse extraction algorithm to separately deal with noise from 'rigid' head motion and 'non-rigid' facial expression. We first identify…

Signal Processing · Electrical Eng. & Systems 2019-05-30 Utkarsh Sharma , Terumi Umematsu , Masanori Tsujikawa , Yoshifumi Onishi

Magnetic Resonance Imaging with tagging (tMRI) has long been utilized for quantifying tissue motion and strain during deformation. However, a phenomenon known as tag fading, a gradual decrease in tag visibility over time, often complicates…

Image and Video Processing · Electrical Eng. & Systems 2024-02-01 Zhangxing Bian , Ahmed Alshareef , Shuwen Wei , Junyu Chen , Yuli Wang , Jonghye Woo , Dzung L. Pham , Jiachen Zhuo , Aaron Carass , Jerry L. Prince

Purpose: Magnetic resonance fingerprinting (MRF) methods typically rely on dictio-nary matching to map the temporal MRF signals to quantitative tissue parameters. Such approaches suffer from inherent discretization errors, as well as high…

Image and Video Processing · Electrical Eng. & Systems 2021-03-11 Pingfan Song , Yonina C. Eldar , Gal Mazor , Miguel Rodrigues

In this paper, we propose a set of features called temporal accumulative features (TAF) for representing and recognizing isolated sign language gestures. By incorporating sign language specific constructs to better represent the unique…

Computer Vision and Pattern Recognition · Computer Science 2020-04-06 Ahmet Alp Kındıroğlu , Oğulcan Özdemir , Lale Akarun

This report proposes an improved method for the Tracking Any Point (TAP) task, which tracks any physical surface through a video. Several existing approaches have explored the TAP by considering the temporal relationships to obtain smooth…

Computer Vision and Pattern Recognition · Computer Science 2024-03-28 Hongpeng Pan , Yang Yang , Zhongtian Fu , Yuxuan Zhang , Shian Du , Yi Xu , Xiangyang Ji

Congenital heart defect (CHD) detection in ultrasound videos is hindered by image noise and probe positioning variability. While automated methods can reduce operator dependence, current machine learning approaches often neglect temporal…

Computer Vision and Pattern Recognition · Computer Science 2025-09-08 Darya Taratynova , Alya Almsouti , Beknur Kalmakhanbet , Numan Saeed , Mohammad Yaqub

Cardiac tagging magnetic resonance imaging (t-MRI) is the gold standard for regional myocardium deformation and cardiac strain estimation. However, this technique has not been widely used in clinical diagnosis, as a result of the difficulty…

Computer Vision and Pattern Recognition · Computer Science 2021-04-20 Meng Ye , Mikael Kanski , Dong Yang , Qi Chang , Zhennan Yan , Qiaoying Huang , Leon Axel , Dimitris Metaxas

Patient motion is well-known for degrading image quality during medical imaging. Especially positron emission tomography (PET) is susceptible to motion due to its usually long scan times. In hybrid PET/MRI (magnetic resonance imaging),…

Medical Physics · Physics 2019-05-21 Lynn Johann Frohwein , Florian Büther , Klaus Peter Schäfers

Audio event classification has recently emerged as a promising approach in medical applications. In total hip arthroplasty (THA), intra-operative hammering acoustics provide critical cues for assessing the initial stability of the femoral…

Audio and Speech Processing · Electrical Eng. & Systems 2025-12-04 Dongqi Zhu , Zhuwen Xu , Youyuan Chen , Minghao Jin , Wan Zheng , Yi Zhou , Huiwu Li , Yongyun Chang , Feng Hong , Zanjing Zhai

Muscle coordination patterns of lingual behaviors are synergies generated by deforming local muscle groups in a variety of ways. Functional units are functional muscle groups of local structural elements within the tongue that compress,…

We present a robust method to correct for motion in volumetric in-utero MRI time series. Time-course analysis for in-utero volumetric MRI time series often suffers from substantial and unpredictable fetal motion. Registration provides voxel…

Computer Vision and Pattern Recognition · Computer Science 2019-03-08 Ruizhi Liao , Esra A. Turk , Miaomiao Zhang , Jie Luo , Elfar Adalsteinsson , P. Ellen Grant , Polina Golland

We present a new fully-automatic non-rigid 3D shape registration (morphing) framework comprising (1) a new 3D landmarking and pose normalisation method; (2) an adaptive shape template method to accelerate the convergence of registration…

Computer Vision and Pattern Recognition · Computer Science 2018-09-25 Hang Dai , Nick Pears , William Smith

In this paper, a method for Automatic Image Registration (AIR) through histogram is proposed. Automatic image registration is one of the crucial steps in the analysis of remotely sensed data. A new acquired image must be transformed, using…

Computer Vision and Pattern Recognition · Computer Science 2014-02-25 V. Karthikeyan

This paper presents a state-merging algorithm for learning timed languages definable by Event-Recording Automata (ERA) using positive and negative samples in the form of symbolic timed words. Our algorithm, LEAP (Learning Event-recording…

Formal Languages and Automata Theory · Computer Science 2025-08-06 Anirban Majumdar , Sayan Mukherjee , Jean-François Raskin

Our study focuses on isolating swallowing dynamics from interfering patient motion in videofluoroscopy, an X-ray technique that records patients swallowing a radiopaque bolus. These recordings capture multiple motion sources, including head…

Image and Video Processing · Electrical Eng. & Systems 2025-10-22 Luisa Neubig , Deirdre Larsen , Takeshi Ikuma , Markus Kopp , Melda Kunduk , Andreas M. Kist

This paper presents a new approach to the problem of correcting speech recognition errors by means of post-editing. It consists of using a neural sequence tagger that learns how to correct an ASR (Automatic Speech Recognition) hypothesis…

Computation and Language · Computer Science 2024-06-13 Tomasz Ziętkiewicz

In this paper, we propose a preamble (PA) collision resolution (PACR) scheme based on multiple timing advance (TA) values captured via tagged PAs. In the proposed PACR scheme, tags are embedded in random access (RA) PAs and multiple TA…

Information Theory · Computer Science 2017-08-15 Han Seung Jang , Su Min Kim , Hong-Shik Park , Dan Keun Sung

In this paper, we present two video processing techniques for contact-less estimation of the Respiratory Rate (RR) of framed subjects. Due to the modest extent of movements related to respiration in both infants and adults, specific…

Image and Video Processing · Electrical Eng. & Systems 2022-11-30 Veronica Mattioli , Davide Alinovi , Gianluigi Ferrari , Francesco Pisani , Riccardo Raheli
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