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Sign language segmentation is a crucial task in sign language processing systems. It enables downstream tasks such as sign recognition, transcription, and machine translation. In this work, we consider two kinds of segmentation:…

Computation and Language · Computer Science 2023-10-31 Amit Moryossef , Zifan Jiang , Mathias Müller , Sarah Ebling , Yoav Goldberg

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

Subtle hand differences make sign language recognition challenging, yet many existing methods rely on encoders pretrained on generic action datasets that poorly capture such fine-grained cues. We propose a self-supervised pretraining method…

Computer Vision and Pattern Recognition · Computer Science 2026-05-05 Kunyuan Xie , Zhixi Cai , Kalin Stefanov

Accurate recognition and interpretation of sign language are crucial for enhancing communication accessibility for deaf and hard of hearing individuals. However, current approaches of Isolated Sign Language Recognition (ISLR) often face…

Computer Vision and Pattern Recognition · Computer Science 2025-05-14 Karina Kvanchiani , Roman Kraynov , Elizaveta Petrova , Petr Surovcev , Aleksandr Nagaev , Alexander Kapitanov

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

Most state-of-the-art semantic segmentation approaches only achieve high accuracy in good conditions. In practically-common but less-discussed adverse environmental conditions, their performance can decrease enormously. Existing studies…

Computer Vision and Pattern Recognition · Computer Science 2020-03-04 Weihao Xia , Zhanglin Cheng , Yujiu Yang , Jing-Hao Xue

We introduce a method for training neural networks to perform image or volume segmentation in which prior knowledge about the topology of the segmented object can be explicitly provided and then incorporated into the training process. By…

Computer Vision and Pattern Recognition · Computer Science 2020-09-21 James R. Clough , Nicholas Byrne , Ilkay Oksuz , Veronika A. Zimmer , Julia A. Schnabel , Andrew P. King

Sign language is a visual language used by the deaf and dumb community to communicate. However, for most recognition methods based on monocular cameras, the recognition accuracy is low and the robustness is poor. Even if the effect is good…

Computer Vision and Pattern Recognition · Computer Science 2024-07-03 Zhiyu Long , Xingyou Liu , Jiaqi Qiao , Zhi Li

Topological alignments and snakes are used in image processing, particularly in locating object boundaries. Both of them have their own advantages and limitations. To improve the overall image boundary detection system, we focused on…

Computer Vision and Pattern Recognition · Computer Science 2011-06-03 Ashraf A. Aly , Safaai Bin Deris , Nazar Zaki

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

Sign Language helps people with Speaking and Hearing Disabilities communicate with others efficiently. Sign Language identification is a challenging area in the field of computer vision and recent developments have been able to achieve near…

Computer Vision and Pattern Recognition · Computer Science 2021-01-21 Yugam Bajaj , Puru Malhotra

Sign language recognition is a difficult task, yet required for many applications in real-time speed. Using RGB cameras for recognition of sign languages is not very successful in practical situations and accurate 3D imaging requires…

Multimedia · Computer Science 2011-05-05 Morteza Zahedi , Ali Reza Manashty

American Sign Language recognition is a difficult gesture recognition problem, characterized by fast, highly articulate gestures. These are comprised of arm movements with different hand shapes, facial expression and head movements. Among…

Computer Vision and Pattern Recognition · Computer Science 2020-03-20 Al Amin Hosain , Panneer Selvam Santhalingam , Parth Pathak , Huzefa Rangwala , Jana Kosecka

Human motion capture data has been widely used in data-driven character animation. In order to generate realistic, natural-looking motions, most data-driven approaches require considerable efforts of pre-processing, including motion…

Computer Vision and Pattern Recognition · Computer Science 2019-03-05 Noshaba Cheema , Somayeh Hosseini , Janis Sprenger , Erik Herrmann , Han Du , Klaus Fischer , Philipp Slusallek

Accurately identifying hands in images is a key sub-task for human activity understanding with wearable first-person point-of-view cameras. Traditional hand segmentation approaches rely on a large corpus of manually labeled data to generate…

Computer Vision and Pattern Recognition · Computer Science 2018-06-18 Yubo Zhang , Vishnu Naresh Boddeti , Kris M. Kitani

Sign language recognition is a challenging gesture sequence recognition problem, characterized by quick and highly coarticulated motion. In this paper we focus on recognition of fingerspelling sequences in American Sign Language (ASL)…

Computer Vision and Pattern Recognition · Computer Science 2019-08-29 Bowen Shi , Aurora Martinez Del Rio , Jonathan Keane , Diane Brentari , Greg Shakhnarovich , Karen Livescu

The recognition of sign language is a challenging task with an important role in society to facilitate the communication of deaf persons. We propose a new approach of Spatial-Temporal Graph Convolutional Network to sign language recognition…

Machine Learning · Computer Science 2020-05-21 Cleison Correia de Amorim , David Macêdo , Cleber Zanchettin

In this project, we have developed a sign language tutor that lets users learn isolated signs by watching recorded videos and by trying the same signs. The system records the user's video and analyses it. If the sign is recognized, both…

Over the years, hand gesture recognition has been mostly addressed considering hand trajectories in isolation. However, in most sign languages, hand gestures are defined on a particular context (body region). We propose a pipeline to…

Computer Vision and Pattern Recognition · Computer Science 2016-07-22 Marc Martínez-Camarena , Jose Oramas , Mario Montagud-Climent , Tinne Tuytelaars

Topological correctness plays a critical role in many image segmentation tasks, yet most networks are trained using pixel-wise loss functions, such as Dice, neglecting topological accuracy. Existing topology-aware methods often lack robust…

Computer Vision and Pattern Recognition · Computer Science 2025-04-21 Laurin Lux , Alexander H. Berger , Alexander Weers , Nico Stucki , Daniel Rueckert , Ulrich Bauer , Johannes C. Paetzold
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