Bengali Sign Language Recognition through Hand Pose Estimation using Multi-Branch Spatial-Temporal Attention Model

• URL: http://arxiv.org/abs/2408.14111v1
• Date: Mon, 26 Aug 2024 08:55:16 GMT
• Title: Bengali Sign Language Recognition through Hand Pose Estimation using Multi-Branch Spatial-Temporal Attention Model
• Authors: Abu Saleh Musa Miah, Md. Al Mehedi Hasan, Md Hadiuzzaman, Muhammad Nazrul Islam, Jungpil Shin,
• Abstract summary: We propose a spatial-temporal attention-based BSL recognition model considering hand joint skeletons extracted from the sequence of images. Our model captures discriminative structural displacements and short-range dependency based on unified joint features projected onto high-dimensional feature space.
• Score: 0.5825410941577593
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Hand gesture-based sign language recognition (SLR) is one of the most advanced applications of machine learning, and computer vision uses hand gestures. Although, in the past few years, many researchers have widely explored and studied how to address BSL problems, specific unaddressed issues remain, such as skeleton and transformer-based BSL recognition. In addition, the lack of evaluation of the BSL model in various concealed environmental conditions can prove the generalized property of the existing model by facing daily life signs. As a consequence, existing BSL recognition systems provide a limited perspective of their generalisation ability as they are tested on datasets containing few BSL alphabets that have a wide disparity in gestures and are easy to differentiate. To overcome these limitations, we propose a spatial-temporal attention-based BSL recognition model considering hand joint skeletons extracted from the sequence of images. The main aim of utilising hand skeleton-based BSL data is to ensure the privacy and low-resolution sequence of images, which need minimum computational cost and low hardware configurations. Our model captures discriminative structural displacements and short-range dependency based on unified joint features projected onto high-dimensional feature space. Specifically, the use of Separable TCN combined with a powerful multi-head spatial-temporal attention architecture generated high-performance accuracy. The extensive experiments with a proposed dataset and two benchmark BSL datasets with a wide range of evaluations, such as intra- and inter-dataset evaluation settings, demonstrated that our proposed models achieve competitive performance with extremely low computational complexity and run faster than existing models.

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