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Micro-gesture recognition (MGR) is challenging due to subtle inter-class variations. Existing methods rely on category-level supervision, which is insufficient for capturing subtle and localized motion differences. Thus, this paper proposes…

Computer Vision and Pattern Recognition · Computer Science 2026-03-18 Jinsheng Wei , Zhaodi Xu , Guanming Lu , Haoyu Chen , Jingjie Yan

Due to the rapid temporal and fine-grained nature of complex human assembly atomic actions, traditional action segmentation approaches requiring the spatial (and often temporal) down sampling of video frames often loose vital fine-grained…

Computer Vision and Pattern Recognition · Computer Science 2022-11-28 Matthew Kent Myers , Nick Wright , Stephen McGough , Nicholas Martin

Video understanding, including video captioning and retrieval, is still a great challenge for video-language models (VLMs). The existing video retrieval and caption benchmarks only include short descriptions, limits their ability of…

Computer Vision and Pattern Recognition · Computer Science 2025-03-19 Yifan Xu , Xinhao Li , Yichun Yang , Desen Meng , Rui Huang , Limin Wang

As CLIP's global alignment limits its ability to capture fine-grained details, recent efforts have focused on enhancing its region-text alignment. However, current remote sensing (RS)-specific CLIP variants still inherit this limited…

Computer Vision and Pattern Recognition · Computer Science 2025-11-20 Zhenshi Li , Weikang Yu , Dilxat Muhtar , Xueliang Zhang , Pengfeng Xiao , Pedram Ghamisi , Xiao Xiang Zhu

Existing video captioning methods struggle to balance visual fidelity and redundancy: holistic captions are compact but lose fine-grained evidence, whereas segment-wise captions improve coverage but introduce heavy redundancy. We propose…

Computer Vision and Pattern Recognition · Computer Science 2026-05-27 Zihan Lin , Songhe Deng , Shuwei He , Danxiang Zhu , Dan Zhang , Yishu Lei , Xianlong Luo , Shikun Feng , Rui Liu

Understanding fine-grained temporal dynamics is crucial for multimodal video comprehension and generation. Due to the lack of fine-grained temporal annotations, existing video benchmarks mostly resemble static image benchmarks and are…

Computer Vision and Pattern Recognition · Computer Science 2024-10-16 Mu Cai , Reuben Tan , Jianrui Zhang , Bocheng Zou , Kai Zhang , Feng Yao , Fangrui Zhu , Jing Gu , Yiwu Zhong , Yuzhang Shang , Yao Dou , Jaden Park , Jianfeng Gao , Yong Jae Lee , Jianwei Yang

Language plays a vital role in the realm of human motion. Existing methods have largely depended on CLIP text embeddings for motion generation, yet they fall short in effectively aligning language and motion due to CLIP's pretraining on…

Computer Vision and Pattern Recognition · Computer Science 2025-03-11 Zhe Li , Weihao Yuan , Yisheng He , Lingteng Qiu , Shenhao Zhu , Xiaodong Gu , Weichao Shen , Yuan Dong , Zilong Dong , Laurence T. Yang

Video detailed captioning aims to generate comprehensive video descriptions to facilitate video understanding. Recently, most efforts in the video detailed captioning community have been made towards a local-to-global paradigm, which first…

Computer Vision and Pattern Recognition · Computer Science 2025-09-16 Wan Xu , Feng Zhu , Yihan Zeng , Yuanfan Guo , Ming Liu , Hang Xu , Wangmeng Zuo

While there exists many methods for manipulating rigid objects with parallel-jaw grippers, grasping with multi-finger robotic hands remains a quite unexplored research topic. Reasoning and planning collision-free trajectories on the…

Grasping is one of the most fundamental challenging capabilities in robotic manipulation, especially in unstructured, cluttered, and semantically diverse environments. Recent researches have increasingly explored language-guided…

Robotics · Computer Science 2025-12-25 Zebin Jiang , Tianle Jin , Xiangtong Yao , Alois Knoll , Hu Cao

Despite recent advancements, video captioning models still face significant limitations in accurately describing fine-grained motion details and suffer from severe hallucination issues. These challenges become particularly prominent when…

Computer Vision and Pattern Recognition · Computer Science 2026-02-23 Boda Lin , Yongjie Zhu , Xiaocheng Gong , Wenyu Qin , Meng Wang

The advent of large Vision-Language Models (VLMs) has significantly advanced multimodal tasks, enabling more sophisticated and accurate reasoning across various applications, including image and video captioning, visual question answering,…

Computer Vision and Pattern Recognition · Computer Science 2024-11-26 Hang Hua , Qing Liu , Lingzhi Zhang , Jing Shi , Zhifei Zhang , Yilin Wang , Jianming Zhang , Jiebo Luo

High-quality, large-scale audio captioning is crucial for advancing audio understanding, yet current automated methods often generate captions that lack fine-grained detail and contextual accuracy, primarily due to their reliance on limited…

Sound · Computer Science 2025-06-03 Shunian Chen , Xinyuan Xie , Zheshu Chen , Liyan Zhao , Owen Lee , Zhan Su , Qilin Sun , Benyou Wang

While the Contrastive Language-Image Pretraining(CLIP) model has achieved remarkable success in a variety of downstream vison language understanding tasks, enhancing its capability for fine-grained image-text alignment remains an active…

Computer Vision and Pattern Recognition · Computer Science 2025-11-07 Yicheng Xiao , Yu Chen , Haoxuan Ma , Jiale Hong , Caorui Li , Lingxiang Wu , Haiyun Guo , Jinqiao Wang

Sign language videos are an important medium for spreading and learning sign language. However, most existing human image synthesis methods produce sign language images with details that are distorted, blurred, or structurally incorrect.…

Computer Vision and Pattern Recognition · Computer Science 2024-09-26 Tongkai Shi , Lianyu Hu , Fanhua Shang , Jichao Feng , Peidong Liu , Wei Feng

Our objective in this work is fine-grained classification of actions in untrimmed videos, where the actions may be temporally extended or may span only a few frames of the video. We cast this into a query-response mechanism, where each…

Computer Vision and Pattern Recognition · Computer Science 2021-04-20 Chuhan Zhang , Ankush Gupta , Andrew Zisserman

Fingerspelling is a significant component of Sign Language (SL), allowing the interpretation of proper names, characterized by fast hand movements during signing. Although previous works on fingerspelling recognition have focused on…

Computer Vision and Pattern Recognition · Computer Science 2025-05-16 Pavel Korotaev , Petr Surovtsev , Alexander Kapitanov , Karina Kvanchiani , Aleksandr Nagaev

CLIP has shown impressive results in aligning images and texts at scale. However, its ability to capture detailed visual features remains limited because CLIP matches images and texts at a global level. To address this issue, we propose…

Computer Vision and Pattern Recognition · Computer Science 2024-12-05 Rui Xiao , Sanghwan Kim , Mariana-Iuliana Georgescu , Zeynep Akata , Stephan Alaniz

We introduce PerceptionComp, a manually annotated benchmark for complex, long-horizon, perception-centric video reasoning. PerceptionComp is designed so that no single moment is sufficient: answering each question requires multiple…

Computer Vision and Pattern Recognition · Computer Science 2026-03-30 Shaoxuan Li , Zhixuan Zhao , Hanze Deng , Zirun Ma , Shulin Tian , Zuyan Liu , Yushi Hu , Haoning Wu , Yuhao Dong , Benlin Liu , Ziwei Liu , Ranjay Krishna

Fine-grained action recognition (FGAR) aims to identify subtle and distinctive differences among fine-grained action categories. However, current recognition methods often capture coarse-grained motion patterns but struggle to identify…

Computer Vision and Pattern Recognition · Computer Science 2025-11-27 Baoli Sun , Yihan Wang , Xinzhu Ma , Zhihui Wang , Kun Lu , Zhiyong Wang