An Efficient Sign Language Translation Using Spatial Configuration and Motion Dynamics with LLMs

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Hauptverfasser: Hwang, Eui Jun, Cho, Sukmin, Lee, Junmyeong, Park, Jong C.
Format: Preprint
Veröffentlicht: 2024
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author Hwang, Eui Jun
Cho, Sukmin
Lee, Junmyeong
Park, Jong C.
author_facet Hwang, Eui Jun
Cho, Sukmin
Lee, Junmyeong
Park, Jong C.
contents Gloss-free Sign Language Translation (SLT) converts sign videos directly into spoken language sentences without relying on glosses. Recently, Large Language Models (LLMs) have shown remarkable translation performance in gloss-free methods by harnessing their powerful natural language generation capabilities. However, these methods often rely on domain-specific fine-tuning of visual encoders to achieve optimal results. By contrast, this paper emphasizes the importance of capturing the spatial configurations and motion dynamics inherent in sign language. With this in mind, we introduce Spatial and Motion-based Sign Language Translation (SpaMo), a novel LLM-based SLT framework. The core idea of SpaMo is simple yet effective. We first extract spatial and motion features using off-the-shelf visual encoders and then input these features into an LLM with a language prompt. Additionally, we employ a visual-text alignment process as a warm-up before the SLT supervision. Our experiments demonstrate that SpaMo achieves state-of-the-art performance on two popular datasets, PHOENIX14T and How2Sign.
format Preprint
id arxiv_https___arxiv_org_abs_2408_10593
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle An Efficient Sign Language Translation Using Spatial Configuration and Motion Dynamics with LLMs
Hwang, Eui Jun
Cho, Sukmin
Lee, Junmyeong
Park, Jong C.
Computation and Language
Computer Vision and Pattern Recognition
Gloss-free Sign Language Translation (SLT) converts sign videos directly into spoken language sentences without relying on glosses. Recently, Large Language Models (LLMs) have shown remarkable translation performance in gloss-free methods by harnessing their powerful natural language generation capabilities. However, these methods often rely on domain-specific fine-tuning of visual encoders to achieve optimal results. By contrast, this paper emphasizes the importance of capturing the spatial configurations and motion dynamics inherent in sign language. With this in mind, we introduce Spatial and Motion-based Sign Language Translation (SpaMo), a novel LLM-based SLT framework. The core idea of SpaMo is simple yet effective. We first extract spatial and motion features using off-the-shelf visual encoders and then input these features into an LLM with a language prompt. Additionally, we employ a visual-text alignment process as a warm-up before the SLT supervision. Our experiments demonstrate that SpaMo achieves state-of-the-art performance on two popular datasets, PHOENIX14T and How2Sign.
title An Efficient Sign Language Translation Using Spatial Configuration and Motion Dynamics with LLMs
topic Computation and Language
Computer Vision and Pattern Recognition
url https://arxiv.org/abs/2408.10593