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Sign language recognition and translation first uses a recognition module to generate glosses from sign language videos and then employs a translation module to translate glosses into spoken sentences. Most existing works focus on the…

Computation and Language · Computer Science 2023-05-26 Yong Cao , Wei Li , Xianzhi Li , Min Chen , Guangyong Chen , Long Hu , Zhengdao Li , Hwang Kai

Gloss-free sign language translation (SLT) is hindered by two key challenges: **inadequate sign representation** that fails to capture nuanced visual cues, and **sentence-level semantic misalignment** in current LLM-based methods, which…

Computer Vision and Pattern Recognition · Computer Science 2025-12-09 Zhi Rao , Yucheng Zhou , Benjia Zhou , Yiqing Huang , Sergio Escalera , Jun Wan

Sign language is the primary communication language for people with disabling hearing loss. Sign language recognition (SLR) systems aim to recognize sign gestures and translate them into spoken language. One of the main challenges in SLR is…

Computer Vision and Pattern Recognition · Computer Science 2025-04-24 Hasan Algafri , Hamzah Luqman , Sarah Alyami , Issam Laradji

As the main means of communication for deaf people, sign language has a special grammatical order, so it is meaningful and valuable to develop a real-time translation system for sign language. In the research process, we added a TSM module…

Computer Vision and Pattern Recognition · Computer Science 2023-06-21 Shengzhuo Wei , Yan Lan

Despite existing pioneering works on sign language translation (SLT), there is a non-trivial obstacle, i.e., the limited quantity of parallel sign-text data. To tackle this parallel data bottleneck, we propose a sign back-translation…

Computer Vision and Pattern Recognition · Computer Science 2021-05-27 Hao Zhou , Wengang Zhou , Weizhen Qi , Junfu Pu , Houqiang Li

Different from traditional video retrieval, sign language retrieval is more biased towards understanding the semantic information of human actions contained in video clips. Previous works typically only encode RGB videos to obtain…

Computer Vision and Pattern Recognition · Computer Science 2024-07-24 Longtao Jiang , Min Wang , Zecheng Li , Yao Fang , Wengang Zhou , Houqiang Li

In this paper, a novel approach to sign language recognition based on state tying in each of data streams is presented. In this framework, it is assumed that hand gesture signal is represented in terms of six synchronous data streams, i.e.,…

Other Computer Science · Computer Science 2024-07-17 Jiyong Ma , Wen Gao , Chunli Wang

Research on continuous sign language recognition (CSLR) is essential to bridge the communication gap between deaf and hearing individuals. Numerous previous studies have trained their models using the connectionist temporal classification…

Computer Vision and Pattern Recognition · Computer Science 2024-09-24 Ronglai Zuo , Fangyun Wei , Brian Mak

Sign language recognition (SLR) is a challenging problem, involving complex manual features, i.e., hand gestures, and fine-grained non-manual features (NMFs), i.e., facial expression, mouth shapes, etc. Although manual features are…

Computer Vision and Pattern Recognition · Computer Science 2021-08-17 Hezhen Hu , Wengang Zhou , Junfu Pu , Houqiang Li

Sign Language Translation (SLT) aims to map sign language videos to spoken language text. A common approach relies on gloss annotations as an intermediate representation, decomposing SLT into two sub-tasks: video-to-gloss recognition and…

Computer Vision and Pattern Recognition · Computer Science 2025-05-22 Jianyuan Guo , Peike Li , Trevor Cohn

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

Sign language recognition (SLR) facilitates communication between deaf and hearing individuals. Deep learning is widely used to develop SLR-based systems; however, it is computationally intensive and requires substantial computational…

Robotics · Computer Science 2025-12-24 Nitin Kumar Singh , Arie Rachmad Syulistyo , Yuichiro Tanaka , Hakaru Tamukoh

Due to the emergence of many sign language datasets, isolated sign language recognition (ISLR) has made significant progress in recent years. In addition, the development of various advanced deep neural networks is another reason for this…

Computer Vision and Pattern Recognition · Computer Science 2025-06-10 Siyuan Jing , Guangxue Wang , Haoyang Zhai , Qin Tao , Jun Yang , Bing Wang , Peng Jin

People with vocal and hearing disabilities use sign language to express themselves using visual gestures and signs. Although sign language is a solution for communication difficulties faced by deaf people, there are still problems as most…

Computer Vision and Pattern Recognition · Computer Science 2023-05-01 Mallikharjuna Rao K , Harleen Kaur , Sanjam Kaur Bedi , M A Lekhana

Word-level sign language recognition (WSLR) is a fundamental task in sign language interpretation. It requires models to recognize isolated sign words from videos. However, annotating WSLR data needs expert knowledge, thus limiting WSLR…

Computer Vision and Pattern Recognition · Computer Science 2020-03-18 Dongxu Li , Xin Yu , Chenchen Xu , Lars Petersson , Hongdong Li

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

Sign language translation from video to spoken text presents unique challenges owing to the distinct grammar, expression nuances, and high variation of visual appearance across different speakers and contexts. The intermediate gloss…

Computer Vision and Pattern Recognition · Computer Science 2024-07-15 Pooya Fayyazsanavi , Antonios Anastasopoulos , Jana Košecká

Sign language is a visual language that enhances communication between people and is frequently used as the primary form of communication by people with hearing loss. Even so, not many people with hearing loss use sign language, and they…

Computer Vision and Pattern Recognition · Computer Science 2023-05-25 Rupesh Kumar , Ayush Sinha , Ashutosh Bajpai , S. K Singh

Most existing sign language translation (SLT) datasets are limited in scale, lack multilingual coverage, and are costly to curate due to their reliance on expert annotation and controlled recording setup. Recently, Vision Language Models…

Computation and Language · Computer Science 2025-10-30 Shakib Yazdani , Yasser Hamidullah , Cristina España-Bonet , Josef van Genabith

Sign Language Recognition (SLR) systems aim to be embedded in video stream platforms to recognize the sign performed in front of a camera. SLR research has taken advantage of recent advances in pose estimation models to use skeleton…

Computer Vision and Pattern Recognition · Computer Science 2023-04-13 David Laines , Gissella Bejarano , Miguel Gonzalez-Mendoza , Gilberto Ochoa-Ruiz