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Sign language recognition (SLR) is a weakly supervised task that annotates sign videos as textual glosses. Recent studies show that insufficient training caused by the lack of large-scale available sign datasets becomes the main bottleneck…

Computer Vision and Pattern Recognition · Computer Science 2023-04-13 Jiangbin Zheng , Yile Wang , Cheng Tan , Siyuan Li , Ge Wang , Jun Xia , Yidong Chen , Stan Z. Li

This paper contributes to the challenge of skeleton-based human action recognition in videos. The key step is to develop a generic network architecture to extract discriminative features for the spatio-temporal skeleton data. In this paper,…

Computer Vision and Pattern Recognition · Computer Science 2021-11-02 Shujian Liao , Terry Lyons , Weixin Yang , Kevin Schlegel , Hao Ni

Pre-training has proven effective for learning transferable features in sign language understanding (SLU) tasks. Recently, skeleton-based methods have gained increasing attention because they can robustly handle variations in subjects and…

Computer Vision and Pattern Recognition · Computer Science 2026-04-01 Muxin Pu , Mei Kuan Lim , Chun Yong Chong , Chen Change Loy

Table structure recognition (TSR) holds widespread practical importance by parsing tabular images into structured representations, yet encounters significant challenges when processing complex layouts involving merged or empty cells.…

Computer Vision and Pattern Recognition · Computer Science 2026-04-20 Boming Chen , Zining Wang , Zhentao Guo , Jianqiang Liu , Chen Duan , Yu Gu , Kai zhou , Pengfei Yan

Skeleton-based human action recognition has achieved a great interest in recent years, as skeleton data has been demonstrated to be robust to illumination changes, body scales, dynamic camera views, and complex background. Nevertheless, an…

Computer Vision and Pattern Recognition · Computer Science 2021-06-24 Chiara Plizzari , Marco Cannici , Matteo Matteucci

Large language model (LLM) agents increasingly rely on reusable skills: capability packages that combine instructions, control flow, constraints, and tool calls. In current agent systems, however, skills are still represented by text-heavy…

Computation and Language · Computer Science 2026-05-05 Qiliang Liang , Hansi Wang , Zhong Liang , Yang Liu

Self-supervised learning (SSL) methods such as masked language modeling have shown massive performance gains by pretraining transformer models for a variety of natural language processing tasks. The follow-up research adapted similar…

Computer Vision and Pattern Recognition · Computer Science 2022-05-12 Gokul Karthik Kumar , Sahal Shaji Mullappilly , Abhishek Singh Gehlot

Sign Language Production (SLP) is the task of generating sign language video from spoken language inputs. The field has seen a range of innovations over the last few years, with the introduction of deep learning-based approaches providing…

Self-supervised Learning (SSL) including the mainstream contrastive learning has achieved great success in learning visual representations without data annotations. However, most methods mainly focus on the instance level information (\ie,…

Computer Vision and Pattern Recognition · Computer Science 2024-06-04 Mingkai Zheng , Shan You , Fei Wang , Chen Qian , Changshui Zhang , Xiaogang Wang , Chang Xu

Person re-identification (re-ID) via 3D skeleton data is an emerging topic with prominent advantages. Existing methods usually design skeleton descriptors with raw body joints or perform skeleton sequence representation learning. However,…

Computer Vision and Pattern Recognition · Computer Science 2023-08-01 Haocong Rao , Chunyan Miao

Sign language is a fundamental means of communication for the deaf and hard-of-hearing (DHH) community, enabling nuanced expression through gestures, facial expressions, and body movements. Despite its critical role in facilitating…

Computer Vision and Pattern Recognition · Computer Science 2025-04-14 Alexander Brettmann , Jakob Grävinghoff , Marlene Rüschoff , Marie Westhues

Remote sensing data has been widely used for various Earth Observation (EO) missions such as land use and cover classification, weather forecasting, agricultural management, and environmental monitoring. Most existing remote sensing…

Computer Vision and Pattern Recognition · Computer Science 2023-11-14 Xin Zhang , Liangxiu Han

Most deep-learning-based continuous sign language recognition (CSLR) models share a similar backbone consisting of a visual module, a sequential module, and an alignment module. However, due to limited training samples, a connectionist…

Computer Vision and Pattern Recognition · Computer Science 2024-01-12 Ronglai Zuo , Brian Mak

A key challenge in continuous sign language recognition (CSLR) is to efficiently capture long-range spatial interactions over time from the video input. To address this challenge, we propose TCNet, a hybrid network that effectively models…

Computer Vision and Pattern Recognition · Computer Science 2024-03-19 Hui Lu , Albert Ali Salah , Ronald Poppe

Human skeleton point clouds are commonly used to automatically classify and predict the behaviour of others. In this paper, we use a contrastive self-supervised learning method, SimCLR, to learn representations that capture the semantics of…

Computer Vision and Pattern Recognition · Computer Science 2022-11-11 Nico Lingg , Miguel Sarabia , Luca Zappella , Barry-John Theobald

Sign language is a visual language used by the deaf and dumb community to communicate. However, for most recognition methods based on monocular cameras, the recognition accuracy is low and the robustness is poor. Even if the effect is good…

Computer Vision and Pattern Recognition · Computer Science 2024-07-03 Zhiyu Long , Xingyou Liu , Jiaqi Qiao , Zhi Li

Human Action Recognition (HAR) is an interesting research area in human-computer interaction used to monitor the activities of elderly and disabled individuals affected by physical and mental health. In the recent era, skeleton-based HAR…

Computer Vision and Pattern Recognition · Computer Science 2024-11-04 Faisal Mehmood , Enqing Chen , Touqeer Abbas , Samah M. Alzanin

Signed Language Processing (SLP) concerns the automated processing of signed languages, the main means of communication of Deaf and hearing impaired individuals. SLP features many different tasks, ranging from sign recognition to…

Computation and Language · Computer Science 2024-07-25 Federico Tavella , Viktor Schlegel , Marta Romeo , Aphrodite Galata , Angelo Cangelosi

Sign language is one of the most effective communication tools for people with hearing difficulties. Most existing works focus on improving the performance of sign language tasks on RGB videos, which may suffer from degraded recording…

Computer Vision and Pattern Recognition · Computer Science 2024-07-23 Pengyu Zhang , Hao Yin , Zeren Wang , Wenyue Chen , Shengming Li , Dong Wang , Huchuan Lu , Xu Jia

Current continuous sign language recognition (CSLR) methods struggle with handling diverse samples. Although dynamic convolutions are ideal for this task, they mainly focus on spatial modeling and fail to capture the temporal dynamics and…

Computer Vision and Pattern Recognition · Computer Science 2025-07-08 Sheng Liu , Yiheng Yu , Yuan Feng , Min Xu , Zhelun Jin , Yining Jiang , Tiantian Yuan