Ham2Pose: Animating Sign Language Notation into Pose Sequences

• URL: http://arxiv.org/abs/2211.13613v2
• Date: Sat, 1 Apr 2023 17:13:25 GMT
• Title: Ham2Pose: Animating Sign Language Notation into Pose Sequences
• Authors: Rotem Shalev-Arkushin, Amit Moryossef, Ohad Fried
• Abstract summary: Translating spoken languages into Sign languages is necessary for open communication between the hearing and hearing-impaired communities. We propose the first method for animating a text written in HamNoSys, a lexical Sign language notation, into signed pose sequences.
• Score: 9.132706284440276
• License: http://creativecommons.org/licenses/by-sa/4.0/
• Abstract: Translating spoken languages into Sign languages is necessary for open communication between the hearing and hearing-impaired communities. To achieve this goal, we propose the first method for animating a text written in HamNoSys, a lexical Sign language notation, into signed pose sequences. As HamNoSys is universal by design, our proposed method offers a generic solution invariant to the target Sign language. Our method gradually generates pose predictions using transformer encoders that create meaningful representations of the text and poses while considering their spatial and temporal information. We use weak supervision for the training process and show that our method succeeds in learning from partial and inaccurate data. Additionally, we offer a new distance measurement that considers missing keypoints, to measure the distance between pose sequences using DTW-MJE. We validate its correctness using AUTSL, a large-scale Sign language dataset, show that it measures the distance between pose sequences more accurately than existing measurements, and use it to assess the quality of our generated pose sequences. Code for the data pre-processing, the model, and the distance measurement is publicly released for future research.

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