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Person re-identification (Re-ID) via gait features within 3D skeleton sequences is a newly-emerging topic with several advantages. Existing solutions either rely on hand-crafted descriptors or supervised gait representation learning. This…

Computer Vision and Pattern Recognition · Computer Science 2021-07-06 Haocong Rao , Siqi Wang , Xiping Hu , Mingkui Tan , Yi Guo , Jun Cheng , Xinwang Liu , Bin Hu

Reconstructing sharp 3D representations from blurry multi-view images are long-standing problem in computer vision. Recent works attempt to enhance high-quality novel view synthesis from the motion blur by leveraging event-based cameras,…

Computer Vision and Pattern Recognition · Computer Science 2025-04-01 Seungjun Lee , Gim Hee Lee

Generating human mobility trajectories is of great importance to solve the lack of large-scale trajectory data in numerous applications, which is caused by privacy concerns. However, existing mobility trajectory generation methods still…

Machine Learning · Computer Science 2024-07-25 Huandong Wang , Changzheng Gao , Yuchen Wu , Depeng Jin , Lina Yao , Yong Li

Portrait customization (PC) has recently garnered significant attention due to its potential applications. However, existing PC methods lack precise identity (ID) preservation and face control. To address these tissues, we propose Diff-PC,…

Computer Vision and Pattern Recognition · Computer Science 2026-02-03 Yifang Xu , Benxiang Zhai , Chenyu Zhang , Ming Li , Yang Li , Sidan Du

Global security concerns have raised a proliferation of video surveillance devices. Intelligent surveillance systems seek to discover possible threats automatically and raise alerts. Being able to identify the surveyed object can help…

Computer Vision and Pattern Recognition · Computer Science 2020-05-06 Tracey K. M. Lee , Mohammed Belkhatir , Saeid Sanei

Wearable sensors in Internet of Things (IoT) ecosystems increasingly support applications such as remote health monitoring, elderly care, and smart home automation, all of which rely on robust human activity recognition (HAR). Continual…

Gait recognition is an important recognition technology, because gait is not easy to camouflage and does not need cooperation to recognize subjects. However, many existing methods are inadequate in preserving both temporal information and…

Computer Vision and Pattern Recognition · Computer Science 2022-08-15 Yifan Chen , Yang Zhao , Xuelong Li

Diffusion models are emerging as powerful solutions for generating high-fidelity and diverse images, often surpassing GANs under many circumstances. However, their slow inference speed hinders their potential for real-time applications. To…

Computer Vision and Pattern Recognition · Computer Science 2024-06-18 Luan Thanh Trinh , Tomoki Hamagami

With the proliferation of AI-generated images, digital watermarking has become an essential safeguard for protecting intellectual property and mitigating malicious exploitation. Recent works on semantic watermarking have enabled efficient…

Computer Vision and Pattern Recognition · Computer Science 2026-05-12 Minh Quoc Duong , Chun Tong Lei , Chun Pong Lau

Gait recognition aims to identify individuals based on their body shape and walking patterns. Though much progress has been achieved driven by deep learning, gait recognition in real-world surveillance scenarios remains quite challenging to…

Computer Vision and Pattern Recognition · Computer Science 2025-11-27 Shaoxiong Zhang , Jinkai Zheng , Shangdong Zhu , Chenggang Yan

Human motion transfer (HMT) aims to generate a video clip for the target subject by imitating the source subject's motion. Although previous methods have achieved good results in synthesizing good-quality videos, they lose sight of…

Computer Vision and Pattern Recognition · Computer Science 2024-02-23 Jingzhe Ma , Xiaoqing Zhang , Shiqi Yu

Drawing on recent advancements in diffusion models for text-to-image generation, identity-preserved personalization has made significant progress in accurately capturing specific identities with just a single reference image. However,…

Computer Vision and Pattern Recognition · Computer Science 2024-03-19 Yi Wu , Ziqiang Li , Heliang Zheng , Chaoyue Wang , Bin Li

Virtual try-on focuses on adjusting the given clothes to fit a specific person seamlessly while avoiding any distortion of the patterns and textures of the garment. However, the clothing identity uncontrollability and training inefficiency…

Computer Vision and Pattern Recognition · Computer Science 2024-04-02 Jiazheng Xing , Chao Xu , Yijie Qian , Yang Liu , Guang Dai , Baigui Sun , Yong Liu , Jingdong Wang

Gait recognition aims at identifying the pedestrians at a long distance by their biometric gait patterns. It is inherently challenging due to the various covariates and the properties of silhouettes (textureless and colorless), which result…

Computer Vision and Pattern Recognition · Computer Science 2023-06-09 Huanzhang Dou , Pengyi Zhang , Yuhan Zhao , Lin Dong , Zequn Qin , Xi Li

Current face reenactment and swapping methods mainly rely on GAN frameworks, but recent focus has shifted to pre-trained diffusion models for their superior generation capabilities. However, training these models is resource-intensive, and…

Computer Vision and Pattern Recognition · Computer Science 2024-07-10 Yue Han , Junwei Zhu , Keke He , Xu Chen , Yanhao Ge , Wei Li , Xiangtai Li , Jiangning Zhang , Chengjie Wang , Yong Liu

Gait recognition is an important biometric technique for video surveillance tasks, due to the advantage of using it at distance. In this paper, we present a persistent homology-based method to extract topological features (the so-called…

Computer Vision and Pattern Recognition · Computer Science 2017-07-24 J. Lamar-Leon , Raul Alonso-Baryolo , Edel Garcia-Reyes , R. Gonzalez-Diaz

We propose a novel 3D deepfake generation framework based on 3D Gaussian Splatting that enables realistic, identity-preserving face swapping and reenactment in a fully controllable 3D space. Compared to conventional 2D deepfake approaches…

Computer Vision and Pattern Recognition · Computer Science 2025-09-16 Wending Liu , Siyun Liang , Huy H. Nguyen , Isao Echizen

Gait phase estimation based on inertial measurement unit (IMU) signals facilitates precise adaptation of exoskeletons to individual gait variations. However, challenges remain in achieving high accuracy and robustness, particularly during…

Robotics · Computer Science 2025-06-19 Yuanlong Ji , Xingbang Yang , Ruoqi Zhao , Qihan Ye , Quan Zheng , Yubo Fan

Recent generative-prior-based methods have shown promising blind face restoration performance. They usually project the degraded images to the latent space and then decode high-quality faces either by single-stage latent optimization or…

Computer Vision and Pattern Recognition · Computer Science 2024-02-12 Maitreya Suin , Rama Chellappa

Proper guidance strategies are essential to achieve high-quality generation results without retraining diffusion and flow-based text-to-image models. Existing guidance either requires specific training or strong inductive biases of…

Computer Vision and Pattern Recognition · Computer Science 2025-09-29 Tiancheng Li , Weijian Luo , Zhiyang Chen , Liyuan Ma , Guo-Jun Qi