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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

Skeleton-based isolated sign language recognition (ISLR) demands fine-grained understanding of articulated motion across multiple spatial scales, from subtle finger movements to global body dynamics. Existing approaches typically rely on…

Computer Vision and Pattern Recognition · Computer Science 2026-05-13 Muxin Pu , Mei Kuan Lim , Chun Yong Chong , Chen Change Loy

Human body trajectories are a salient cue to identify actions in the video. Such body trajectories are mainly conveyed by hands and face across consecutive frames in sign language. However, current methods in continuous sign language…

Computer Vision and Pattern Recognition · Computer Science 2023-03-21 Lianyu Hu , Liqing Gao , Zekang Liu , Wei Feng

Vision-based Continuous Sign Language Recognition (CSLR) aims to recognize unsegmented signs from image streams. Overfitting is one of the most critical problems in CSLR training, and previous works show that the iterative training scheme…

Computer Vision and Pattern Recognition · Computer Science 2021-08-19 Yuecong Min , Aiming Hao , Xiujuan Chai , Xilin Chen

Machine learning models fundamentally rely on large quantities of high-quality data. Collecting the necessary data for these models can be challenging due to cost, scarcity, and privacy restrictions. Signed languages are visual languages…

Computation and Language · Computer Science 2025-06-12 Harry Walsh , Maksym Ivashechkin , Richard Bowden

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

Recent progress in fine-grained gesture and action classification, and machine translation, point to the possibility of automated sign language recognition becoming a reality. A key stumbling block in making progress towards this goal is a…

Computer Vision and Pattern Recognition · Computer Science 2021-10-14 Samuel Albanie , Gül Varol , Liliane Momeni , Triantafyllos Afouras , Joon Son Chung , Neil Fox , Andrew Zisserman

Hand gesture-based sign language recognition (SLR) is one of the most advanced applications of machine learning, and computer vision uses hand gestures. Although, in the past few years, many researchers have widely explored and studied how…

Computer Vision and Pattern Recognition · Computer Science 2024-08-27 Abu Saleh Musa Miah , Md. Al Mehedi Hasan , Md Hadiuzzaman , Muhammad Nazrul Islam , Jungpil Shin

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

Despite the recent success of deep learning in continuous sign language recognition (CSLR), deep models typically focus on the most discriminative features, ignoring other potentially non-trivial and informative contents. Such…

Computer Vision and Pattern Recognition · Computer Science 2020-02-11 Hao Zhou , Wengang Zhou , Yun Zhou , Houqiang Li

Sign language pre-training has gained increasing attention for its ability to enhance performance across various sign language understanding (SLU) tasks. However, existing methods often suffer from a gap between pre-training and…

Computer Vision and Pattern Recognition · Computer Science 2025-03-14 Zecheng Li , Wengang Zhou , Weichao Zhao , Kepeng Wu , Hezhen Hu , Houqiang Li

This paper proposes an attentional network for the task of Continuous Sign Language Recognition. The proposed approach exploits co-independent streams of data to model the sign language modalities. These different channels of information…

Computer Vision and Pattern Recognition · Computer Science 2021-01-13 Fares Ben Slimane , Mohamed Bouguessa

Sign Languages are expressed through hand and upper body gestures as well as facial expressions. Therefore, Sign Language Recognition (SLR) needs to focus on all such cues. Previous work uses hand-crafted mechanisms or network aggregation…

Computer Vision and Pattern Recognition · Computer Science 2020-09-30 Çağrı Gökçe , Oğulcan Özdemir , Ahmet Alp Kındıroğlu , Lale Akarun

In this work, we benchmark with different backbones and study their impact for self-supervised learning (SSL) as an auxiliary task to blend texture-based local descriptors into feature modelling for efficient face analysis. It is…

Computer Vision and Pattern Recognition · Computer Science 2026-03-24 Shukesh Reddy , Abhijit Das

The objective of this work is to align asynchronous subtitles in sign language videos with limited labelled data. To achieve this goal, we propose a novel framework with the following contributions: (1) we leverage fundamental grammatical…

Computer Vision and Pattern Recognition · Computer Science 2025-03-06 Youngjoon Jang , Jeongsoo Choi , Junseok Ahn , Joon Son Chung

Sign language is commonly used by deaf or mute people to communicate but requires extensive effort to master. It is usually performed with the fast yet delicate movement of hand gestures, body posture, and even facial expressions. Current…

Computer Vision and Pattern Recognition · Computer Science 2021-10-13 Songyao Jiang , Bin Sun , Lichen Wang , Yue Bai , Kunpeng Li , Yun Fu

The goal of sign language recognition (SLR) is to help those who are hard of hearing or deaf overcome the communication barrier. Most existing approaches can be typically divided into two lines, i.e., Skeleton-based and RGB-based methods,…

Computer Vision and Pattern Recognition · Computer Science 2024-04-09 Xiaolong Shen , Zhedong Zheng , Yi Yang

Evaluating sign language generation is often done through back-translation, where generated signs are first recognized back to text and then compared to a reference using text-based metrics. However, this two-step evaluation pipeline…

Computation and Language · Computer Science 2025-09-05 Saki Imai , Mert İnan , Anthony Sicilia , Malihe Alikhani

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 spotting, the task of identifying and localizing individual signs within continuous sign language video, plays a pivotal role in scaling dataset annotations and addressing the severe data scarcity issue in sign language translation.…

Computer Vision and Pattern Recognition · Computer Science 2025-08-08 JianHe Low , Ozge Mercanoglu Sincan , Richard Bowden