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Sign Language Translation (SLT) attempts to convert sign language videos into spoken sentences. However, many existing methods struggle with the disparity between visual and textual representations during end-to-end learning. Gloss-based…

Computer Vision and Pattern Recognition · Computer Science 2025-07-10 Sobhan Asasi , Mohamed Ilyes Lakhal , Richard Bowden

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 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 (SLT) aims to automatically convert visual sign language videos into spoken language text and vice versa. While recent years have seen rapid progress, the true sources of performance improvements often remain…

Computer Vision and Pattern Recognition · Computer Science 2026-03-17 Ozge Mercanoglu Sincan , Jian He Low , Sobhan Asasi , Richard Bowden

Sign language translation (SLT) is challenging, as it involves converting sign language videos into natural language. Previous studies have prioritized accuracy over diversity. However, diversity is crucial for handling lexical and…

Computer Vision and Pattern Recognition · Computer Science 2024-11-27 JiHwan Moon , Jihoon Park , Jungeun Kim , Jongseong Bae , Hyeongwoo Jeon , Ha Young Kim

Sign languages are visual languages using manual articulations and non-manual elements to convey information. For sign language recognition and translation, the majority of existing approaches directly encode RGB videos into hidden…

Computer Vision and Pattern Recognition · Computer Science 2023-03-24 Yutong Chen , Ronglai Zuo , Fangyun Wei , Yu Wu , Shujie Liu , Brian Mak

Continuous sign language recognition (SLR) deals with unaligned video-text pair and uses the word error rate (WER), i.e., edit distance, as the main evaluation metric. Since it is not differentiable, we usually instead optimize the learning…

Computer Vision and Pattern Recognition · Computer Science 2020-10-13 Junfu Pu , Wengang Zhou , Hezhen Hu , Houqiang Li

Pre-training has been proven to be effective in boosting the performance of Isolated Sign Language Recognition (ISLR). Existing pre-training methods solely focus on the compact pose data, which eliminates background perturbation but…

Computer Vision and Pattern Recognition · Computer Science 2025-03-24 Kepeng Wu , Zecheng Li , Hezhen Hu , Wengang Zhou , Houqiang Li

Sign language translation (SLT) is typically trained with text in a single spoken language, which limits scalability and cross-language generalization. Earlier approaches have replaced gloss supervision with text-based sentence embeddings,…

Computation and Language · Computer Science 2025-10-23 Yasser Hamidullah , Shakib Yazdani , Cennet Oguz , Josef van Genabith , Cristina España-Bonet

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 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

Sign Language Representation Learning (SLRL) is crucial for a range of sign language-related downstream tasks such as Sign Language Translation (SLT) and Sign Language Retrieval (SLRet). Recently, many gloss-based and gloss-free SLRL…

Computer Vision and Pattern Recognition · Computer Science 2024-08-20 Zhigang Chen , Benjia Zhou , Yiqing Huang , Jun Wan , Yibo Hu , Hailin Shi , Yanyan Liang , Zhen Lei , Du Zhang

Sign Language Translation (SLT) systems support hearing-impaired people communication by finding equivalences between signed and spoken languages. This task is however challenging due to multiple sign variations, complexity in language and…

Computation and Language · Computer Science 2025-02-05 Christian Ruiz , Fabio Martinez

Sign Language Production (SLP) aims to generate sign videos corresponding to spoken language sentences, where the conversion of sign Glosses to Poses (G2P) is the key step. Due to the cross-modal semantic gap and the lack of word-action…

Computer Vision and Pattern Recognition · Computer Science 2024-12-24 Xu Wang , Shengeng Tang , Peipei Song , Shuo Wang , Dan Guo , Richang Hong

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

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

Gloss-free Sign Language Translation (SLT) has advanced rapidly, achieving strong performances without relying on gloss annotations. However, these gains have often come with increased model complexity and high computational demands,…

Computer Vision and Pattern Recognition · Computer Science 2026-05-29 JianHe Low , Ozge Mercanoglu Sincan , Richard Bowden

Despite recent successes with neural models for sign language translation (SLT), translation quality still lags behind spoken languages because of the data scarcity and modality gap between sign video and text. To address both problems, we…

Computation and Language · Computer Science 2023-05-04 Biao Zhang , Mathias Müller , Rico Sennrich

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 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