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Content Provider | Directory of Open Access Journals (DOAJ) |
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Author | Junuk Cha Muhammad Saqlain Donguk Kim Seungeun Lee Seongyeong Lee Seungryul Baek |
Abstract | Skeleton-based human action recognition has attracted significant interest due to its simplicity and good accuracy. Diverse end-to-end trainable frameworks based on skeletal representation have been proposed so far to map the representation to human action classes better. Most skeleton-based human action recognition approaches are based on the skeletons, which are heuristically pre-defined by the commercial sensors. Nevertheless, it is not confirmed whether the sensor-captured skeletons are the best representation of human bodies for the action recognition task, while in general, the dedicated representation is required for achieving the successful performance on subsequent tasks such as action recognition. In this paper, we try to deal with the issue by explicitly learning the skeletal representation in the context of the human action recognition task. We start our investigation by reconstructing 3D meshes of the human bodies from RGB videos. Then we involve the transformer architecture to sample the most informative skeletal representation from reconstructed 3D meshes, considering the inner and inter structural relationship of 3D meshes and sensor-captured skeletons. Experimental results on challenging human action recognition benchmarks (i.e., SYSU and UTD-MHAD datasets) have shown the superiority of our skeletal representation compared to the sensor-captured skeletons for the action recognition task. |
e-ISSN | 21693536 |
DOI | 10.1109/ACCESS.2022.3185058 |
Journal | IEEE Access |
Volume Number | 10 |
Language | English |
Publisher | IEEE |
Publisher Date | 2022-01-01 |
Publisher Place | United States |
Access Restriction | Open |
Subject Keyword | Electrical Engineering. Electronics. Nuclear Engineering 3d Representation Action Recognition Human Mesh Transformer |
Content Type | Text |
Resource Type | Article |
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