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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

Kinect skeleton tracker is able to achieve considerable human body tracking performance in convenient and a low-cost manner. However, The tracker often captures unnatural human poses such as discontinuous and vibrated motions when…

Computer Vision and Pattern Recognition · Computer Science 2016-04-18 Youngbin Park , Sungphill Moon , Il Hong Suh

Accurate MRI-to-CT translation promises the integration of complementary imaging information without the need for additional imaging sessions. Given the practical challenges associated with acquiring paired MRI and CT scans, the development…

Computer Vision and Pattern Recognition · Computer Science 2025-11-25 Teng Zhou , Jax Luo , Yuping Sun , Yiheng Tan , Shun Yao , Nazim Haouchine , Scott Raymond

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

To reduce scanning time and/or improve spatial/temporal resolution in some MRI applications, parallel MRI (pMRI) acquisition techniques with multiple coils acquisition have emerged since the early 1990s as powerful 3D imaging methods that…

Optimization and Control · Mathematics 2009-09-03 Lotfi Chaari , Jean-Christophe Pesquet , Philippe Ciuciu , Amel Benazza-Benyahia

Dynamic MRI reconstruction from undersampled measurements is a challenging inverse problem that requires preserving both spatial reconstruction quality and temporal consistency across the frames of the cine series. While recent…

Image and Video Processing · Electrical Eng. & Systems 2026-05-19 Yongliang Sun , Siddhant Gautam , Chaoyan Huang , Nicole Seiberlich , Ismail Alkhouri , Saiprasad Ravishankar

Human motion generation has found widespread applications in AR/VR, film, sports, and medical rehabilitation, offering a cost-effective alternative to traditional motion capture systems. However, evaluating the fidelity of such generated…

Computer Vision and Pattern Recognition · Computer Science 2026-02-20 Sihan Zhao , Zixuan Wang , Tianyu Luan , Jia Jia , Wentao Zhu , Jiebo Luo , Junsong Yuan , Nan Xi

Robots applied in therapeutic scenarios, for instance in the therapy of individuals with Autism Spectrum Disorder, are sometimes used for imitation learning activities in which a person needs to repeat motions by the robot. To simplify the…

Robotics · Computer Science 2022-07-26 Natalia Quiroga , Alex Mitrevski , Paul G. Plöger

X-ray photon-counting detector (PCD) offers low noise, high resolution, and spectral characterization, representing a next generation of CT and enabling new biomedical applications. It is well known that involuntary patient motion may…

Medical Physics · Physics 2022-10-20 Mengzhou Li , Chiara Lowe , Anthony Butler , Phil Butler , Ge Wang

In clinical practice, multi-modal magnetic resonance imaging (MRI) with different contrasts is usually acquired in a single study to assess different properties of the same region of interest in the human body. The whole acquisition process…

Image and Video Processing · Electrical Eng. & Systems 2022-04-05 Kai Xuan , Lei Xiang , Xiaoqian Huang , Lichi Zhang , Shu Liao , Dinggang Shen , Qian Wang

Dynamic MRI is a technique of acquiring a series of images continuously to follow the physiological changes over time. However, such fast imaging results in low resolution images. In this work, abdominal deformation model computed from…

Image and Video Processing · Electrical Eng. & Systems 2019-10-11 Chompunuch Sarasaen , Soumick Chatterjee , Mario Breitkopf , Domenico Iuso , Georg Rose , Oliver Speck

We propose a novel unsupervised deep-learning-based algorithm for dynamic magnetic resonance imaging (MRI) reconstruction. Dynamic MRI requires rapid data acquisition for the study of moving organs such as the heart. Existing reconstruction…

Image and Video Processing · Electrical Eng. & Systems 2021-01-26 Jaejun Yoo , Kyong Hwan Jin , Harshit Gupta , Jerome Yerly , Matthias Stuber , Michael Unser

First-pass perfusion cardiac magnetic resonance (FPP-CMR) is becoming an essential non-invasive imaging method for detecting deficits of myocardial blood flow, allowing the assessment of coronary heart disease. Nevertheless, acquisitions…

Magnetic resonance imaging (MRI) is known to be a slow imaging modality and undersampling in k-space has been used to increase the imaging speed. However, image reconstruction from undersampled k-space data is an ill-posed inverse problem.…

Image and Video Processing · Electrical Eng. & Systems 2019-08-08 Jing Cheng , Haifeng Wang , Leslie Ying , Dong Liang

In Magnetic Particle Imaging (MPI), it is typically assumed that the studied specimen is stationary during the data acquisition. In practical applications however, the searched-for 3D distribution of the magnetic nanoparticles might show a…

Optimization and Control · Mathematics 2024-01-26 Marius Nitzsche , Bernadette N Hahn

Due to recent advances in pose-estimation methods, human motion can be extracted from a common video in the form of 3D skeleton sequences. Despite wonderful application opportunities, effective and efficient content-based access to large…

Computer Vision and Pattern Recognition · Computer Science 2023-10-05 Nicola Messina , Jan Sedmidubsky , Fabrizio Falchi , Tomáš Rebok

This paper proposes a multi-channel image reconstruction method, named DeepcomplexMRI, to accelerate parallel MR imaging with residual complex convolutional neural network. Different from most existing works which rely on the utilization of…

Image and Video Processing · Electrical Eng. & Systems 2019-07-30 Shanshan Wang , Huitao Cheng , Leslie Ying , Taohui Xiao , Ziwen Ke , Xin Liu , Hairong Zheng , Dong Liang

We propose a real-time 3D human pose estimation and motion analysis method termed RePose for rehabilitation training. It is capable of real-time monitoring and evaluation of patients'motion during rehabilitation, providing immediate…

Computer Vision and Pattern Recognition · Computer Science 2026-01-05 Junxiao Xue , Pavel Smirnov , Ziao Li , Yunyun Shi , Shi Chen , Xinyi Yin , Xiaohan Yue , Lei Wang , Yiduo Wang , Feng Lin , Yijia Chen , Xiao Ma , Xiaoran Yan , Qing Zhang , Fengjian Xue , Xuecheng Wu

We develop and evaluate MlPET, a fast localized machine learning approach for probabilistic PET image analysis addressing the noise-resolution trade-off in conventional reconstructions. MlPET replaces computationally demanding Markov chain…

Medical Physics · Physics 2026-01-27 Thomas Mejer Hansen , Nana Christensen , Mikkel Vendelbo

Purpose: To develop and evaluate a free-breathing respiratory motion compensated 4D (3D+respiration) $T_2$-weighted turbo spin echo sequence with application to radiology and MR-guided radiotherapy. Methods: k-space data are continuously…

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