A machine can understand human activities, and the meaning of signs can help
overcome the communication barriers between the inaudible and ordinary people.
Sign Language Recognition (SLR) is a fascinating research area and a crucial
task concerning computer vision and pattern recognition. Recently, SLR usage
has increased in many applications, but the environment, background image
resolution, modalities, and datasets affect the performance a lot. Many
researchers have been striving to carry out generic real-time SLR models. This
review paper facilitates a comprehensive overview of SLR and discusses the
needs, challenges, and problems associated with SLR. We study related works
about manual and non-manual, various modalities, and datasets. Research
progress and existing state-of-the-art SLR models over the past decade have
been reviewed. Finally, we find the research gap and limitations in this domain
and suggest future directions. This review paper will be helpful for readers
and researchers to get complete guidance about SLR and the progressive design
of the state-of-the-art SLR model

这篇综述论文对手语识别相关的需求、挑战、问题、模态以及数据集等方面进行了全面的概述，并对过去十年的研究进展及现有现状下的 SLR 模型进行了回顾和总结，最后找到了该领域的研究差距和局限性，并提出了未来的研究方向，为读者和研究者提供了完整的关于 SLR 和最先进 SLR 模型的指导。