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Sign language recognition (SLR) is a machine learning task aiming to identify signs in videos. Due to the scarcity of annotated data, unsupervised methods like contrastive learning have become promising in this field. They learn meaningful…

Computer Vision and Pattern Recognition · Computer Science 2026-03-09 Ariel Basso Madjoukeng , Jérôme Fink , Pierre Poitier , Edith Belise Kenmogne , Benoit Frenay

This paper presents an in-depth analysis of various self-supervision methods for isolated sign language recognition (ISLR). We consider four recently introduced transformer-based approaches to self-supervised learning from videos, and four…

Computer Vision and Pattern Recognition · Computer Science 2023-09-07 Marcelo Sandoval-Castaneda , Yanhong Li , Diane Brentari , Karen Livescu , Gregory Shakhnarovich

Isolated Sign Language Recognition (ISLR) is crucial for scalable sign language technology, yet language-specific approaches limit current models. To address this, we propose a one-shot learning approach that generalises across languages…

Computation and Language · Computer Science 2025-02-28 Toon Vandendriessche , Mathieu De Coster , Annelies Lejon , Joni Dambre

Sign Language Translation (SLT) is a task that has not been studied relatively much compared to the study of Sign Language Recognition (SLR). However, the SLR is a study that recognizes the unique grammar of sign language, which is…

Computer Vision and Pattern Recognition · Computer Science 2022-06-15 Youngmin Kim , Minji Kwak , Dain Lee , Yeongeun Kim , Hyeongboo Baek

This study presents TSLFormer, a light and robust word-level Turkish Sign Language (TSL) recognition model that treats sign gestures as ordered, string-like language. Instead of using raw RGB or depth videos, our method only works with 3D…

Computation and Language · Computer Science 2025-06-19 Kutay Ertürk , Furkan Altınışık , İrem Sarıaltın , Ömer Nezih Gerek

Since the superiority of Transformer in learning long-term dependency, the sign language Transformer model achieves remarkable progress in Sign Language Recognition (SLR) and Translation (SLT). However, there are several issues with the…

Computer Vision and Pattern Recognition · Computer Science 2021-07-28 Pan Xie , Mengyi Zhao , Xiaohui Hu

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

Independent Sign Language Recognition is a complex visual recognition problem that combines several challenging tasks of Computer Vision due to the necessity to exploit and fuse information from hand gestures, body features and facial…

Computer Vision and Pattern Recognition · Computer Science 2020-12-11 Agelos Kratimenos , Georgios Pavlakos , Petros Maragos

Sign language is the primary language for people with a hearing loss. Sign language recognition (SLR) is the automatic recognition of sign language, which represents a challenging problem for computers, though some progress has been made…

Computer Vision and Pattern Recognition · Computer Science 2021-03-10 Roman Töngi

Isolated Sign Language Recognition (ISLR) is challenged by gestures that are morphologically similar yet semantically distinct, a problem rooted in the complex interplay between hand shape and motion trajectory. Existing methods, often…

Computer Vision and Pattern Recognition · Computer Science 2025-09-19 Liangjin Liu , Haoyang Zheng , Zhengzhong Zhu , Pei Zhou

Word-level sign language recognition (WSLR) has attracted attention because it is expected to overcome the communication barrier between people with speech impairment and those who can hear. In the WSLR problem, a method designed for action…

Computer Vision and Pattern Recognition · Computer Science 2024-11-21 Mizuki Maruyama , Shrey Singh , Katsufumi Inoue , Partha Pratim Roy , Masakazu Iwamura , Michifumi Yoshioka

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

A machine can understand human activities, and the meaning of signs can help overcome the communication barriers between the inaudible and ordinary people. Sign Language Recognition (SLR) is a fascinating research area and a crucial task…

Computer Vision and Pattern Recognition · Computer Science 2024-09-02 M. Madhiarasan , Partha Pratim Roy

In modern society, people should not be identified based on their disability, rather, it is environments that can disable people with impairments. Improvements to automatic Sign Language Recognition (SLR) will lead to more enabling…

Computer Vision and Pattern Recognition · Computer Science 2022-02-23 Jordan J. Bird

Continuous sign language recognition (CSLR) focuses on interpreting and transcribing sequences of sign language gestures in videos. In this work, we propose CLIP sign language adaptation (CLIP-SLA), a novel CSLR framework that leverages the…

Computer Vision and Pattern Recognition · Computer Science 2025-04-03 Sarah Alyami , Hamzah Luqman

Sign languages are visual languages which convey information by signers' handshape, facial expression, body movement, and so forth. Due to the inherent restriction of combinations of these visual ingredients, there exist a significant…

Computer Vision and Pattern Recognition · Computer Science 2023-03-22 Ronglai Zuo , Fangyun Wei , Brian Mak

Self-supervised learning (SSL), which aims to learn meaningful prior representations from unlabeled data, has been proven effective for skeleton-based action understanding. Different from the image domain, skeleton data possesses sparser…

Computer Vision and Pattern Recognition · Computer Science 2025-12-29 Jiahang Zhang , Lilang Lin , Shuai Yang , Jiaying Liu

In recent years, deep learning techniques have been used to develop sign language recognition systems, potentially serving as a communication tool for millions of hearing-impaired individuals worldwide. However, there are inherent…

Computer Vision and Pattern Recognition · Computer Science 2024-08-15 Alvaro Leandro Cavalcante Carneiro , Denis Henrique Pinheiro Salvadeo , Lucas de Brito Silva

Isolated Sign Language Recognition (ISLR) approaches primarily rely on RGB data or signer pose information. However, combining these modalities often results in the loss of crucial details, such as hand shape and orientation, due to…

Computer Vision and Pattern Recognition · Computer Science 2025-09-16 Sven Schreiber , Noha Sarhan , Simone Frintrop , Christian Wilms

Millions of hearing impaired people around the world routinely use some variants of sign languages to communicate, thus the automatic translation of a sign language is meaningful and important. Currently, there are two sub-problems in Sign…

Computer Vision and Pattern Recognition · Computer Science 2025-09-16 Jie Huang , Wengang Zhou , Qilin Zhang , Houqiang Li , Weiping Li