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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

When virtual agents interact with humans, gestures are crucial to delivering their intentions with speech. Previous multimodal co-speech gesture generation models required encoded features of all modalities to generate gestures. If some…

Computer Vision and Pattern Recognition · Computer Science 2023-05-26 Gwantae Kim , Seonghyeok Noh , Insung Ham , Hanseok Ko

Existing end-to-end sign-language animation systems suffer from low naturalness, limited facial/body expressivity, and no user control. We propose a human-centered, real-time speech-to-sign animation framework that integrates (1) a…

Human-Computer Interaction · Computer Science 2025-06-25 Yingchao Li

Hand pose estimation from a monocular RGB image is an important but challenging task. The main factor affecting its performance is the lack of a sufficiently large training dataset with accurate hand-keypoint annotations. In this work, we…

Computer Vision and Pattern Recognition · Computer Science 2020-12-15 Liangjian Chen , Shih-Yao Lin , Yusheng Xie , Hui Tang , Yufan Xue , Xiaohui Xie , Yen-Yu Lin , Wei Fan

This paper addresses the problem of generating whole-body motion from speech. Despite great successes, prior methods still struggle to produce reasonable and diverse whole-body motions from speech. This is due to their reliance on…

Computer Vision and Pattern Recognition · Computer Science 2025-01-23 Jinsong Zhang , Minjie Zhu , Yuxiang Zhang , Yebin Liu , Kun Li

Many sign language translation (SLT) systems operate on pose sequences instead of raw video to reduce input dimensionality, improve portability, and partially anonymize signers. The choice of pose estimator is often treated as an…

Computation and Language · Computer Science 2026-04-28 Catherine O'Brien , Gerard Sant , Mathias Müller , Sarah Ebling

The recent surge in large language models has automated translations of spoken and written languages. However, these advances remain largely inaccessible to American Sign Language (ASL) users, whose language relies on complex visual cues.…

Computer Vision and Pattern Recognition · Computer Science 2025-12-18 Daniel Perkins , Davis Hunter , Dhrumil Patel , Galen Flanagan

In this paper, we propose a dual-condition diffusion pre-training model named SignDiff that can generate human sign language speakers from a skeleton pose. SignDiff has a novel Frame Reinforcement Network called FR-Net, similar to dense…

Computer Vision and Pattern Recognition · Computer Science 2025-05-01 Sen Fang , Chunyu Sui , Yanghao Zhou , Xuedong Zhang , Hongbin Zhong , Yapeng Tian , Chen Chen

This paper introduces SignAgent, a novel agentic framework that utilises Large Language Models (LLMs) for scalable, linguistically-grounded Sign Language (SL) annotation and dataset curation. Traditional computational methods for SLs often…

Computer Vision and Pattern Recognition · Computer Science 2026-03-20 Oliver Cory , Ozge Mercanoglu Sincan , Richard Bowden

Hand gesture serves as a crucial role during the expression of sign language. Current deep learning based methods for sign language understanding (SLU) are prone to over-fitting due to insufficient sign data resource and suffer limited…

Computer Vision and Pattern Recognition · Computer Science 2023-05-09 Hezhen Hu , Weichao Zhao , Wengang Zhou , Houqiang Li

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

Despite progress in gloss-free Sign Language Translation (SLT), traditional single modality end-to-end approaches consistently fail on two critical components of natural signing: the precise recognition of high-speed fingerspelling and the…

Computation and Language · Computer Science 2025-12-05 Marshall Thomas , Edward Fish , Richard Bowden

One of the factors that have hindered progress in the areas of sign language recognition, translation, and production is the absence of large annotated datasets. Towards this end, we introduce How2Sign, a multimodal and multiview continuous…

Computer Vision and Pattern Recognition · Computer Science 2021-04-02 Amanda Duarte , Shruti Palaskar , Lucas Ventura , Deepti Ghadiyaram , Kenneth DeHaan , Florian Metze , Jordi Torres , Xavier Giro-i-Nieto

Sign Languages are rich multi-channel languages, requiring articulation of both manual (hands) and non-manual (face and body) features in a precise, intricate manner. Sign Language Production (SLP), the automatic translation from spoken to…

Computer Vision and Pattern Recognition · Computer Science 2020-08-31 Ben Saunders , Necati Cihan Camgoz , Richard Bowden

Automatic Sign Language Translation requires the integration of both computer vision and natural language processing to effectively bridge the communication gap between sign and spoken languages. However, the deficiency in large-scale…

Computer Vision and Pattern Recognition · Computer Science 2024-05-08 Ryan Wong , Necati Cihan Camgoz , Richard Bowden

In this paper, we propose a novel audio-driven talking head method capable of simultaneously generating highly expressive facial expressions and hand gestures. Unlike existing methods that focus on generating full-body or half-body poses,…

Computer Vision and Pattern Recognition · Computer Science 2025-01-22 Linrui Tian , Siqi Hu , Qi Wang , Bang Zhang , Liefeng Bo

Recent advances in multimodal Parameter-Efficient Fine-Tuning (PEFT) have significantly improved performance on downstream tasks such as few-shot retrieval. However, most existing approaches focus on task-specific gains while neglecting the…

Artificial Intelligence · Computer Science 2025-08-20 Thye Shan Ng , Caren Soyeon Han , Eun-Jung Holden

In this paper, we propose SignLLM, a multilingual Sign Language Production (SLP) large language model, which includes two novel multilingual SLP modes MLSF and Prompt2LangGloss that allow sign language gestures generation from query texts…

Computer Vision and Pattern Recognition · Computer Science 2025-05-01 Sen Fang , Chen Chen , Lei Wang , Ce Zheng , Chunyu Sui , Yapeng Tian

Creating a realistic animatable avatar from a single static portrait remains challenging. Existing approaches often struggle to capture subtle facial expressions, the associated global body movements, and the dynamic background. To address…

Computer Vision and Pattern Recognition · Computer Science 2025-04-08 Mengchao Wang , Qiang Wang , Fan Jiang , Yaqi Fan , Yunpeng Zhang , Yonggang Qi , Kun Zhao , Mu Xu

AI technologies for Natural Languages have made tremendous progress recently. However, commensurate progress has not been made on Sign Languages, in particular, in recognizing signs as individual words or as complete sentences. We introduce…

Computation and Language · Computer Science 2021-10-13 Prem Selvaraj , Gokul NC , Pratyush Kumar , Mitesh Khapra