Score-level Multi Cue Fusion for Sign Language Recognition

• URL: http://arxiv.org/abs/2009.14139v1
• Date: Tue, 29 Sep 2020 16:32:51 GMT
• Title: Score-level Multi Cue Fusion for Sign Language Recognition
• Authors: \c{C}a\u{g}r{\i} G\"ok\c{c}e and O\u{g}ulcan \"Ozdemir and Ahmet Alp K{\i}nd{\i}ro\u{g}lu and Lale Akarun
• Abstract summary: We propose a more straightforward approach to training cue models for Sign Language Recognition. We compare the performance of 3D Convolutional Neural Network (CNN) models specializing in dominant hand, hands, face, and upper body regions. Our experimental results have shown the effectiveness of mixed convolutional models.
• Score: 2.064612766965483
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Sign Languages are expressed through hand and upper body gestures as well as facial expressions. Therefore, Sign Language Recognition (SLR) needs to focus on all such cues. Previous work uses hand-crafted mechanisms or network aggregation to extract the different cue features, to increase SLR performance. This is slow and involves complicated architectures. We propose a more straightforward approach that focuses on training separate cue models specializing on the dominant hand, hands, face, and upper body regions. We compare the performance of 3D Convolutional Neural Network (CNN) models specializing in these regions, combine them through score-level fusion, and use the weighted alternative. Our experimental results have shown the effectiveness of mixed convolutional models. Their fusion yields up to 19% accuracy improvement over the baseline using the full upper body. Furthermore, we include a discussion for fusion settings, which can help future work on Sign Language Translation (SLT).

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