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Reconstructing dynamic 3D scenes from monocular videos requires simultaneously capturing high-frequency appearance details and temporally continuous motion. Existing methods using single Gaussian primitives are limited by their low-pass…

Computer Vision and Pattern Recognition · Computer Science 2026-01-05 Jiewen Chan , Zhenjun Zhao , Yu-Lun Liu

Modelling various spatio-temporal dependencies is the key to recognising human actions in skeleton sequences. Most existing methods excessively relied on the design of traversal rules or graph topologies to draw the dependencies of the…

Computer Vision and Pattern Recognition · Computer Science 2021-11-02 Tailin Chen , Shidong Wang , Desen Zhou , Yu Guan

Multimodal emotion recognition often suffers from performance degradation in valence-arousal estimation due to noise and misalignment between audio and visual modalities. To address this challenge, we introduce TAGF, a Time-aware Gated…

Multimedia · Computer Science 2025-07-04 Yubeen Lee , Sangeun Lee , Chaewon Park , Junyeop Cha , Eunil Park

Compared to other biometrics, gait is difficult to conceal and has the advantage of being unobtrusive. Inertial sensors, such as accelerometers and gyroscopes, are often used to capture gait dynamics. These inertial sensors are commonly…

Machine Learning · Computer Science 2020-04-30 Qin Zou , Yanling Wang , Qian Wang , Yi Zhao , Qingquan Li

The primary challenge in Video Object Detection (VOD) is effectively exploiting temporal information to enhance object representations. Traditional strategies, such as aggregating region proposals, often suffer from feature variance due to…

Computer Vision and Pattern Recognition · Computer Science 2024-12-09 Khurram Azeem Hashmi , Talha Uddin Sheikh , Didier Stricker , Muhammad Zeshan Afzal

This paper focuses on addressing the problem of data scarcity for gait analysis. Standard augmentation methods may produce gait sequences that are not consistent with the biomechanical constraints of human walking. To address this issue, we…

Computer Vision and Pattern Recognition · Computer Science 2023-07-24 Mritula Chandrasekaran , Jarek Francik , Dimitrios Makris

At present, the existing gait recognition systems are focusing on developing methods to extract robust gait feature from silhouette images and they indeed achieved great success. However, gait can be sensitive to appearance features such as…

Computer Vision and Pattern Recognition · Computer Science 2021-12-21 Zhihao Wang , Chaoying Tang

Gait recognition from video streams is a challenging problem in computer vision biometrics due to the subtle differences between gaits and numerous confounding factors. Recent advancements in self-supervised pretraining have led to the…

Computer Vision and Pattern Recognition · Computer Science 2025-04-11 Adrian Cosma , Andy Cǎtrunǎ , Emilian Rǎdoi

This paper presents the ARN-LSTM architecture, a novel multi-stream action recognition model designed to address the challenge of simultaneously capturing spatial motion and temporal dynamics in action sequences. Traditional methods often…

Computer Vision and Pattern Recognition · Computer Science 2024-12-02 Chuanchuan Wang , Ahmad Sufril Azlan Mohmamed , Mohd Halim Bin Mohd Noor , Xiao Yang , Feifan Yi , Xiang Li

Gait recognition from motion capture data, as a pattern classification discipline, can be improved by the use of machine learning. This paper contributes to the state-of-the-art with a statistical approach for extracting robust gait…

Computer Vision and Pattern Recognition · Computer Science 2022-12-09 Michal Balazia , Petr Sojka

Face anti-spoofing (FAS) is indispensable for a face recognition system. Many texture-driven countermeasures were developed against presentation attacks (PAs), but the performance against unseen domains or unseen spoofing types is still…

Computer Vision and Pattern Recognition · Computer Science 2023-06-27 Chih-Jung Chang , Yaw-Chern Lee , Shih-Hsuan Yao , Min-Hung Chen , Chien-Yi Wang , Shang-Hong Lai , Trista Pei-Chun Chen

Which joint interactions in the human gait cycle can be used as biometric characteristics? Most current methods on gait recognition suffer from the lack of interpretability. We propose an interpretable feature representation of gait…

Computer Vision and Pattern Recognition · Computer Science 2022-12-09 Michal Balazia , Katerina Hlavackova-Schindler , Petr Sojka , Claudia Plant

Promptable video object segmentation and tracking (VOST) has seen significant advances with the emergence of foundation models like Segment Anything Model 2 (SAM2); however, their application in surgical video analysis remains challenging…

Computer Vision and Pattern Recognition · Computer Science 2025-08-11 Guoping Xu , Hua-Chieh Shao , You Zhang

3D Gaussian splatting video (3DGS) streaming has recently emerged as a research hotspot in both academia and industry, owing to its impressive ability to deliver immersive 3D video experiences. However, research in this area is still in its…

Computer Vision and Pattern Recognition · Computer Science 2025-07-22 Han Gong , Qiyue Li , Jie Li , Zhi Liu

Temporal retiming, the ability to reconstruct and render dynamic scenes at arbitrary timestamps, is crucial for applications such as slow-motion playback, temporal editing, and post-production. However, most existing 4D Gaussian Splatting…

Computer Vision and Pattern Recognition · Computer Science 2026-05-07 Xuezhen Wang , Li Ma , Yulin Shen , Zeyu Wang , Pedro V. Sander

Taking advantage of human pose data for understanding human activities has attracted much attention these days. However, state-of-the-art pose estimators struggle in obtaining high-quality 2D or 3D pose data due to occlusion, truncation and…

Computer Vision and Pattern Recognition · Computer Science 2020-11-12 Di Yang , Rui Dai , Yaohui Wang , Rupayan Mallick , Luca Minciullo , Gianpiero Francesca , Francois Bremond

Clinical gait analysis (CGA) using computer vision is an emerging field in artificial intelligence that faces barriers of accessible, real-world data, and clear task objectives. This paper lays the foundation for current developments in CGA…

Computer Vision and Pattern Recognition · Computer Science 2025-12-02 Rahm Ranjan , David Ahmedt-Aristizabal , Mohammad Ali Armin , Juno Kim

Skeleton-aware sign language recognition (SLR) has gained popularity due to its ability to remain unaffected by background information and its lower computational requirements. Current methods utilize spatial graph modules and temporal…

Computer Vision and Pattern Recognition · Computer Science 2024-03-20 Lianyu Hu , Liqing Gao , Zekang Liu , Wei Feng

Existing studies for gait recognition are dominated by 2D representations like the silhouette or skeleton of the human body in constrained scenes. However, humans live and walk in the unconstrained 3D space, so projecting the 3D human body…

Computer Vision and Pattern Recognition · Computer Science 2022-04-07 Jinkai Zheng , Xinchen Liu , Wu Liu , Lingxiao He , Chenggang Yan , Tao Mei

Gait recognition is a rapidly advancing vision technique for person identification from a distance. Prior studies predominantly employed relatively shallow networks to extract subtle gait features, achieving impressive successes in…

Computer Vision and Pattern Recognition · Computer Science 2024-01-11 Chao Fan , Saihui Hou , Yongzhen Huang , Shiqi Yu