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Sign Language Translation (SLT) converts sign language videos into spoken-language text, bridging communication between Deaf and hearing communities. Current gloss-free approaches rely on large encoder-decoder models, limiting deployment.…

Computation and Language · Computer Science 2026-05-12 Kuanwei Chen , Mengfeng Tsai

Isolated Sign Language Recognition (SLR) has mostly been applied on datasets containing signs executed slowly and clearly by a limited group of signers. In real-world scenarios, however, we are met with challenging visual conditions,…

Computer Vision and Pattern Recognition · Computer Science 2023-08-17 Mathieu De Coster , Ellen Rushe , Ruth Holmes , Anthony Ventresque , Joni Dambre

In this thesis, we propose a multitask learning based method to improve Neural Sign Language Translation (NSLT) consisting of two parts, a tokenization layer and Neural Machine Translation (NMT). The tokenization part focuses on how Sign…

Computation and Language · Computer Science 2020-11-19 Alptekin Orbay

Sign Language Translation (SLT) first uses a Sign Language Recognition (SLR) system to extract sign language glosses from videos. Then, a translation system generates spoken language translations from the sign language glosses. This paper…

Computation and Language · Computer Science 2020-11-04 Kayo Yin , Jesse Read

Sign Language Translation (SLT) is a core task in the field of AI-assisted disability. Traditional SLT methods are typically based on visible light videos, which are easily affected by factors such as lighting variations, rapid hand…

Computer Vision and Pattern Recognition · Computer Science 2025-12-01 Shiao Wang , Xiao Wang , Duoqing Yang , Yao Rong , Fuling Wang , Jianing Li , Lin Zhu , Bo Jiang

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

Current sign language translation (SLT) approaches often rely on gloss-based supervision with Connectionist Temporal Classification (CTC), limiting their ability to handle non-monotonic alignments between sign language video and spoken…

Computation and Language · Computer Science 2024-12-25 Sihan Tan , Taro Miyazaki , Nabeela Khan , Kazuhiro Nakadai

Sign language recognition (SLR) refers to interpreting sign language glosses from given videos automatically. This research area presents a complex challenge in computer vision because of the rapid and intricate movements inherent in sign…

Computer Vision and Pattern Recognition · Computer Science 2025-03-27 Muxin Pu , Mei Kuan Lim , Chun Yong Chong

Sign Language Translation (SLT) is a challenging task that requires bridging the modality gap between visual and linguistic information while capturing subtle variations in hand shapes and movements. To address these challenges, we…

Computer Vision and Pattern Recognition · Computer Science 2025-09-03 Sobhan Asasi , Mohamed Ilyas Lakhal , Ozge Mercanoglu Sincan , Richard Bowden

This paper presents the first comprehensive interpretability analysis of a Transformer-based Sign Language Translation (SLT) model, focusing on the translation from video-based Greek Sign Language to glosses and text. Leveraging the Greek…

Computation and Language · Computer Science 2024-10-21 Pedro Alejandro Dal Bianco , Oscar Agustín Stanchi , Facundo Manuel Quiroga , Franco Ronchetti , Enzo Ferrante

Sign Language Translation (SLT) bridges the communication gap between deaf people and hearing people, where dialogue provides crucial contextual cues to aid in translation. Building on this foundational concept, this paper proposes…

Computation and Language · Computer Science 2025-09-18 Zekang Liu , Wei Feng , Fanhua Shang , Lianyu Hu , Jichao Feng , Liqing Gao

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

Previous Sign Language Translation (SLT) methods achieve superior performance by relying on gloss annotations. However, labeling high-quality glosses is a labor-intensive task, which limits the further development of SLT. Although some…

Computation and Language · Computer Science 2024-03-20 Zhigang Chen , Benjia Zhou , Jun Li , Jun Wan , Zhen Lei , Ning Jiang , Quan Lu , Guoqing Zhao

Our aim is to develop a unified model for sign language understanding, that performs sign language translation (SLT) and sign-subtitle alignment (SSA). Together, these two tasks enable the conversion of continuous signing videos into spoken…

Computer Vision and Pattern Recognition · Computer Science 2025-12-10 Youngjoon Jang , Liliane Momeni , Zifan Jiang , Joon Son Chung , Gül Varol , Andrew Zisserman

Gloss-free sign language translation (SLT) aims to develop well-performing SLT systems with no requirement for the costly gloss annotations, but currently still lags behind gloss-based approaches significantly. In this paper, we identify a…

Computer Vision and Pattern Recognition · Computer Science 2024-10-30 Jinhui Ye , Xing Wang , Wenxiang Jiao , Junwei Liang , Hui Xiong

Automatic sign language processing is gaining popularity in Natural Language Processing (NLP) research (Yin et al., 2021). In machine translation (MT) in particular, sign language translation based on glosses is a prominent approach. In…

Computation and Language · Computer Science 2022-11-29 Mathias Müller , Zifan Jiang , Amit Moryossef , Annette Rios , Sarah Ebling

Sign Language Translation (SLT) aims to convert sign language videos into spoken or written text. While early systems relied on gloss annotations as an intermediate supervision, such annotations are costly to obtain and often fail to…

Computer Vision and Pattern Recognition · Computer Science 2025-07-15 Ozge Mercanoglu Sincan , Richard Bowden

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

We propose a sign language translation system based on human keypoint estimation. It is well-known that many problems in the field of computer vision require a massive amount of dataset to train deep neural network models. The situation is…

Computer Vision and Pattern Recognition · Computer Science 2019-06-24 Sang-Ki Ko , Chang Jo Kim , Hyedong Jung , Choongsang Cho

The advances in automatic sign language translation (SLT) to spoken languages have been mostly benchmarked with datasets of limited size and restricted domains. Our work advances the state of the art by providing the first baseline results…

Computation and Language · Computer Science 2023-04-17 Laia Tarrés , Gerard I. Gállego , Amanda Duarte , Jordi Torres , Xavier Giró-i-Nieto