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Passive radars (PRs) provide a low-cost and energy-efficient approach to object detection by reusing existing wireless transmissions instead of emitting dedicated probing signals. Yet, conventional passive systems require prior knowledge of…

Signal Processing · Electrical Eng. & Systems 2025-12-10 Mingyi Li , Jiawen Xu , Hanting Zhao , Xu Zhao , Yan Jin Chen , Tie Jun Cui , Vincenzo Galdi , Lianlin Li

Due to the difficulty of acquiring large-scale 3D human keypoint annotation, previous methods for 3D human pose estimation (HPE) have often relied on 2D image features and sequential 2D annotations. Furthermore, the training of these…

Computer Vision and Pattern Recognition · Computer Science 2024-03-05 Dongqiangzi Ye , Yufei Xie , Weijia Chen , Zixiang Zhou , Lingting Ge , Hassan Foroosh

In this paper we present a novel approach for bottom-up multi-person 3D human pose estimation from monocular RGB images. We propose to use high resolution volumetric heatmaps to model joint locations, devising a simple and effective…

Computer Vision and Pattern Recognition · Computer Science 2020-04-02 Matteo Fabbri , Fabio Lanzi , Simone Calderara , Stefano Alletto , Rita Cucchiara

The paper deals with quantum pulse position modulation (PPM), both in the absence (pure states) and in the presence (mixed states) of thermal noise, using the Glauber representation of coherent laser radiation. The objective is to find…

Quantum Physics · Physics 2009-11-16 G. Cariolaro , G. Pierobon

mmWave radars have recently gathered significant attention as a means to track human movement within indoor environments. Widely adopted Kalman filter tracking methods experience performance degradation when the underlying movement is…

Signal Processing · Electrical Eng. & Systems 2022-05-09 Jacopo Pegoraro , Michele Rossi

Estimating 3D humans from images often produces implausible bodies that lean, float, or penetrate the floor. Such methods ignore the fact that bodies are typically supported by the scene. A physics engine can be used to enforce physical…

Computer Vision and Pattern Recognition · Computer Science 2023-07-25 Shashank Tripathi , Lea Müller , Chun-Hao P. Huang , Omid Taheri , Michael J. Black , Dimitrios Tzionas

3D human pose and shape estimation (a.k.a. "human mesh recovery") has achieved substantial progress. Researchers mainly focus on the development of novel algorithms, while less attention has been paid to other critical factors involved.…

Computer Vision and Pattern Recognition · Computer Science 2022-09-22 Hui En Pang , Zhongang Cai , Lei Yang , Tianwei Zhang , Ziwei Liu

Recent advancements in millimeter-wave (mmWave) radar have demonstrated its potential for human action recognition and pose estimation, offering privacy-preserving advantages over conventional cameras while maintaining occlusion robustness,…

Computer Vision and Pattern Recognition · Computer Science 2025-07-08 Yizhe Lv , Tingting Zhang , Zhijian Wang , Yunpeng Song , Han Ding , Jinsong Han , Fei Wang

While heatmap-based human pose estimation methods have shown strong performance, they suffer from three main problems: (P1) "Commonly used Mean Squared Error (MSE)" Loss may not always improve joint localization because it penalizes all…

Computer Vision and Pattern Recognition · Computer Science 2025-11-19 Muhammed Can Keles , Bedrettin Cetinkaya , Sinan Kalkan , Emre Akbas

Millimeter-wave (mmWave) radar-based gesture recognition is gaining attention as a key technology to enable intuitive human-machine interaction. Nevertheless, the significant challenge lies in obtaining large-scale, high-quality mmWave…

Human-Computer Interaction · Computer Science 2024-12-23 Huanqi Yang , Mingda Han , Xinyue Li , Di Duan , Tianxing Li , Weitao Xu

Multi-person global human mesh recovery (HMR) is crucial for understanding crowd dynamics and interactions. Traditional vision-based HMR methods sometimes face limitations in real-world scenarios due to mutual occlusions, insufficient…

Computer Vision and Pattern Recognition · Computer Science 2025-11-14 Jiayue Yuan , Fangting Xie , Guangwen Ouyang , Changhai Ma , Ziyu Wu , Heyu Ding , Quan Wan , Yi Ke , Yuchen Wu , Xiaohui Cai

Physics-Informed Neural Networks have become a powerful mesh-free method for solving partial differential equations, but their performance is often limited by spectral bias. Specifically, in standard MLPs used in PINNs, the global parameter…

Machine Learning · Computer Science 2026-05-04 Jianfeng Li , Feng Wang , Ke Tang

Parameterized partial differential equations (PDEs) underpin the mathematical modeling of complex systems in diverse domains, including engineering, healthcare, and physics. A central challenge in using PDEs for real-world applications is…

Machine Learning · Computer Science 2026-04-07 Xuyang Li , Mahdi Masmoudi , Rami Gharbi , Nizar Lajnef , Vishnu Naresh Boddeti

Humanoid robots require diverse motor skills to integrate into complex environments, but bridging the kinematic and dynamic embodiment gap from human data remains a major bottleneck. We demonstrate through Hessian analysis that traditional…

Robotics · Computer Science 2026-05-01 Qingrui Zhao , Kaiyue Yang , Xiyu Wang , Shiqi Zhao , Yi Lu , Xinfang Zhang , Qiu Shen , Xiao-Xiao Long , Xun Cao

Control in fluid environments is an important research area with numerous applications across various domains, including underwater robotics, aerospace engineering, and biomedical systems. However, in practice, control methods often face…

Machine Learning · Computer Science 2025-08-13 Haodong Feng , Peiyan Hu , Yue Wang , Dixia Fan

Millimetre-wave (mmWave) radar has emerged as an attractive and cost-effective alternative for human activity sensing compared to traditional camera-based systems. mmWave radars are also non-intrusive, providing better protection for user…

Machine Learning · Computer Science 2023-11-03 Han Cui , Shu Zhong , Jiacheng Wu , Zichao Shen , Naim Dahnoun , Yiren Zhao

The end-to-end Human Mesh Recovery (HMR) approach has been successfully used for 3D body reconstruction. However, most HMR-based frameworks reconstruct human body by directly learning mesh parameters from images or videos, while lacking…

Computer Vision and Pattern Recognition · Computer Science 2021-03-19 Tianyu Luan , Yali Wang , Junhao Zhang , Zhe Wang , Zhipeng Zhou , Yu Qiao

Human pose estimation (HPE) is a key building block for developing AI-based context-aware systems inside the operating room (OR). The 24/7 use of images coming from cameras mounted on the OR ceiling can however raise concerns for privacy,…

Computer Vision and Pattern Recognition · Computer Science 2021-08-23 Vinkle Srivastav , Afshin Gangi , Nicolas Padoy

Trampoline gymnastics involves extreme human poses and uncommon viewpoints, on which state-of-the art pose estimation models tend to under-perform. We demonstrate that this problem can be addressed by fine-tuning a pose estimation model on…

Computer Vision and Pattern Recognition · Computer Science 2026-04-03 Léa Drolet-Roy , Victor Nogues , Sylvain Gaudet , Eve Charbonneau , Mickaël Begon , Lama Séoud

Radio technology enabled contact-free human posture and vital sign estimation is promising for health monitoring. Radio systems at millimeter-wave (mmWave) frequencies advantageously bring large bandwidth, multi-antenna array and beam…

Signal Processing · Electrical Eng. & Systems 2023-03-17 Hadi Alidoustaghdam , Min Chen , Ben Willetts , Kai Mao , André Kokkeler , Yang Miao