PenSLR: Persian end-to-end Sign Language Recognition Using Ensembling

• URL: http://arxiv.org/abs/2406.16388v1
• Date: Mon, 24 Jun 2024 07:59:34 GMT
• Title: PenSLR: Persian end-to-end Sign Language Recognition Using Ensembling
• Authors: Amirparsa Salmankhah, Amirreza Rajabi, Negin Kheirmand, Ali Fadaeimanesh, Amirreza Tarabkhah, Amirreza Kazemzadeh, Hamed Farbeh,
• Abstract summary: Pen SLR is a glove-based sign language system consisting of an Inertial Measurement Unit (IMU) and five flexible sensors powered by a deep learning framework. We propose a novel ensembling technique by leveraging a multiple sequence alignment algorithm known as Star Alignment. Our evaluations show that Pen SLR achieves a remarkable word accuracy of 94.58% and 96.70% in subject-independent and subject-dependent setups.
• Score: 0.953605234706973
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Sign Language Recognition (SLR) is a fast-growing field that aims to fill the communication gaps between the hearing-impaired and people without hearing loss. Existing solutions for Persian Sign Language (PSL) are limited to word-level interpretations, underscoring the need for more advanced and comprehensive solutions. Moreover, previous work on other languages mainly focuses on manipulating the neural network architectures or hardware configurations instead of benefiting from the aggregated results of multiple models. In this paper, we introduce PenSLR, a glove-based sign language system consisting of an Inertial Measurement Unit (IMU) and five flexible sensors powered by a deep learning framework capable of predicting variable-length sequences. We achieve this in an end-to-end manner by leveraging the Connectionist Temporal Classification (CTC) loss function, eliminating the need for segmentation of input signals. To further enhance its capabilities, we propose a novel ensembling technique by leveraging a multiple sequence alignment algorithm known as Star Alignment. Furthermore, we introduce a new PSL dataset, including 16 PSL signs with more than 3000 time-series samples in total. We utilize this dataset to evaluate the performance of our system based on four word-level and sentence-level metrics. Our evaluations show that PenSLR achieves a remarkable word accuracy of 94.58% and 96.70% in subject-independent and subject-dependent setups, respectively. These achievements are attributable to our ensembling algorithm, which not only boosts the word-level performance by 0.51% and 1.32% in the respective scenarios but also yields significant enhancements of 1.46% and 4.00%, respectively, in sentence-level accuracy.

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