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Rapid development of large language models (LLMs) has significantly advanced multimodal large language models (LMMs), particularly in vision-language tasks. However, existing video-language models often overlook precise temporal…

Computer Vision and Pattern Recognition · Computer Science 2024-11-28 Shimin Chen , Xiaohan Lan , Yitian Yuan , Zequn Jie , Lin Ma

In this work, our goals are two fold: large-vocabulary continuous sign language recognition (CSLR), and sign language retrieval. To this end, we introduce a multi-task Transformer model, CSLR2, that is able to ingest a signing sequence and…

Computer Vision and Pattern Recognition · Computer Science 2024-05-17 Charles Raude , K R Prajwal , Liliane Momeni , Hannah Bull , Samuel Albanie , Andrew Zisserman , Gül Varol

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

Sign language translation (SLT) is a challenging task that involves translating sign language images into spoken language. For SLT models to perform this task successfully, they must bridge the modality gap and identify subtle variations in…

Computer Vision and Pattern Recognition · Computer Science 2025-08-26 Jungeun Kim , Hyeongwoo Jeon , Jongseong Bae , Ha Young Kim

Sign language production requires more than hand motion generation. Non-manual features, including mouthings, eyebrow raises, gaze, and head movements, are grammatically obligatory and cannot be recovered from manual articulators alone.…

Computer Vision and Pattern Recognition · Computer Science 2026-03-26 Alexandre Symeonidis-Herzig , Jianhe Low , Ozge Mercanoglu Sincan , Richard Bowden

The people in the world who are hearing impaired face many obstacles in communication and require an interpreter to comprehend what a person is saying. There has been constant scientific research and the existing models lack the ability to…

Computer Vision and Pattern Recognition · Computer Science 2022-12-08 Shubham Thakar , Samveg Shah , Bhavya Shah , Anant V. Nimkar

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

This paper presents a complete Optical Character Recognition (OCR) system for camera captured image/graphics embedded textual documents for handheld devices. At first, text regions are extracted and skew corrected. Then, these regions are…

Computer Vision and Pattern Recognition · Computer Science 2011-09-16 Ayatullah Faruk Mollah , Nabamita Majumder , Subhadip Basu , Mita Nasipuri

We present a novel framework for real-time sign language recognition using lightweight DNNs trained on limited data. Our system addresses key challenges in sign language recognition, including data scarcity, high computational costs, and…

Computer Vision and Pattern Recognition · Computer Science 2025-07-02 Nikita Nikitin , Eugene Fomin

Time of Flight (ToF) is a prevalent depth sensing technology in the fields of robotics, medical imaging, and non-destructive testing. Yet, ToF sensing faces challenges from complex ambient conditions making an inverse modelling from the…

Computer Vision and Pattern Recognition · Computer Science 2023-12-27 Christopher Hahne , Michel Hayoz , Raphael Sznitman

Structured hand gestures that incorporate visual motions and signs are used in sign language. Sign language is a valuable means of daily communication for individuals who are deaf or have speech impairments, but it is still rare among…

There have been recent advances in computer-based recognition of isolated, citation-form signs from video. There are many challenges for such a task, not least the naturally occurring inter- and intra- signer synchronic variation in sign…

Computer Vision and Pattern Recognition · Computer Science 2023-11-03 Carol Neidle

The bundle of geometry and appearance in computer vision has proven to be a promising solution for robots across a wide variety of applications. Stereo cameras and RGB-D sensors are widely used to realise fast 3D reconstruction and…

Computer Vision and Pattern Recognition · Computer Science 2016-11-15 Xuanpeng Li , Rachid Belaroussi

Fingerspelling, in which words are signed letter by letter, is an important component of American Sign Language. Most previous work on automatic fingerspelling recognition has assumed that the boundaries of fingerspelling regions in signing…

Computer Vision and Pattern Recognition · Computer Science 2021-04-06 Bowen Shi , Diane Brentari , Greg Shakhnarovich , Karen Livescu

Continuous Sign Language Recognition (CSLR) is a crucial task for understanding the languages of deaf communities. Contemporary keypoint-based approaches typically rely on spatio-temporal encoding, where spatial interactions among keypoints…

Computer Vision and Pattern Recognition · Computer Science 2026-03-18 Suvajit Patra , Soumitra Samanta

Feature matching across video streams remains a cornerstone challenge in computer vision. Increasingly, robust multimodal matching has garnered interest in robotics, surveillance, remote sensing, and medical imaging. While traditional rely…

Computer Vision and Pattern Recognition · Computer Science 2025-04-17 Jie Wang , Chen Ye Gan , Caoqi Wei , Jiangtao Wen , Yuxing Han

3D flash LIDAR is an alternative to the traditional scanning LIDAR systems, promising precise depth imaging in a compact form factor, and free of moving parts, for applications such as self-driving cars, robotics and augmented reality (AR).…

Many continuous sign language recognition (CSLR) studies adopt transformer-based architectures for sequence modeling due to their powerful capacity for capturing global contexts. Nevertheless, vanilla self-attention, which serves as the…

Computer Vision and Pattern Recognition · Computer Science 2025-03-18 Hossein Ranjbar , Alireza Taheri

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 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