Jointly Modeling Spatio-Temporal Features of Tactile Signals for Action Classification

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Hauptverfasser: Lin, Jimmy, Li, Junkai, Gao, Jiasi, Ma, Weizhi, Liu, Yang
Format: Preprint
Veröffentlicht: 2024
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author Lin, Jimmy
Li, Junkai
Gao, Jiasi
Ma, Weizhi
Liu, Yang
author_facet Lin, Jimmy
Li, Junkai
Gao, Jiasi
Ma, Weizhi
Liu, Yang
contents Tactile signals collected by wearable electronics are essential in modeling and understanding human behavior. One of the main applications of tactile signals is action classification, especially in healthcare and robotics. However, existing tactile classification methods fail to capture the spatial and temporal features of tactile signals simultaneously, which results in sub-optimal performances. In this paper, we design Spatio-Temporal Aware tactility Transformer (STAT) to utilize continuous tactile signals for action classification. We propose spatial and temporal embeddings along with a new temporal pretraining task in our model, which aims to enhance the transformer in modeling the spatio-temporal features of tactile signals. Specially, the designed temporal pretraining task is to differentiate the time order of tubelet inputs to model the temporal properties explicitly. Experimental results on a public action classification dataset demonstrate that our model outperforms state-of-the-art methods in all metrics.
format Preprint
id arxiv_https___arxiv_org_abs_2404_15279
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Jointly Modeling Spatio-Temporal Features of Tactile Signals for Action Classification
Lin, Jimmy
Li, Junkai
Gao, Jiasi
Ma, Weizhi
Liu, Yang
Signal Processing
Artificial Intelligence
Tactile signals collected by wearable electronics are essential in modeling and understanding human behavior. One of the main applications of tactile signals is action classification, especially in healthcare and robotics. However, existing tactile classification methods fail to capture the spatial and temporal features of tactile signals simultaneously, which results in sub-optimal performances. In this paper, we design Spatio-Temporal Aware tactility Transformer (STAT) to utilize continuous tactile signals for action classification. We propose spatial and temporal embeddings along with a new temporal pretraining task in our model, which aims to enhance the transformer in modeling the spatio-temporal features of tactile signals. Specially, the designed temporal pretraining task is to differentiate the time order of tubelet inputs to model the temporal properties explicitly. Experimental results on a public action classification dataset demonstrate that our model outperforms state-of-the-art methods in all metrics.
title Jointly Modeling Spatio-Temporal Features of Tactile Signals for Action Classification
topic Signal Processing
Artificial Intelligence
url https://arxiv.org/abs/2404.15279