The DOI matches its Crossref record; 35 of the 35 references it cites were found in a registry or an index.
Skeleton Image Representation for 3D Action Recognition Based on Tree Structure and Reference Joints
Open accessAbstract
In the last years, the computer vision research community has studied on how to model temporal dynamics in videos to employ 3D human action recognition. To that end, two main baseline approaches have been researched: (i) Recurrent Neural Networks (RNNs) with Long-Short Term Memory (LSTM); and (ii) skeleton image representations used as input to a Convolutional Neural Network (CNN). Although RNN approaches present excellent results, such methods lack the ability to efficiently learn the spatial relations between the skeleton joints. On the other hand, the representations used to feed CNN approaches present the advantage of having the natural ability of learning structural information from 2D arrays (i.e., they learn spatial relations from the skeleton joints). To further improve such representations, we introduce the Tree Structure Reference Joints Image (TSRJI), a novel skeleton image representation to be used as input to CNNs. The proposed representation has the advantage of combining the use of reference joints and a tree structure skeleton. While the former incorporates different spatial relationships between the joints, the latter preserves important spatial relations by traversing a skeleton tree with a depth-first order algorithm. Experimental results demonstrate the effectiveness of the proposed representation for 3D action recognition on two datasets achieving state-of-the-art results on the recent NTU RGB+D 120 dataset.
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Cites
Deep Residual Learning for Image Recognition
He, K., Zhang, X., Ren, S., & Sun, J. (2016) · 2016 IEEE Conference on Computer Vision and Pattern Recognition (CVPR) · doi:10.1109/cvpr.2016.90 · Cited by 235,474
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Shahroudy, A., Liu, J., Ng, T.-T., & Wang, G. (2016) · 2016 IEEE Conference on Computer Vision and Pattern Recognition (CVPR) · doi:10.1109/cvpr.2016.115 · Cited by 3,148
NTU RGB+D 120: A Large-Scale Benchmark for 3D Human Activity Understanding
Liu, J., Shahroudy, A., Pérez, M., Wang, G., Duan, L., & Kot, A. C. (2019) · IEEE Transactions on Pattern Analysis and Machine Intelligence · doi:10.1109/tpami.2019.2916873 · Cited by 1,917
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Research works printed but not linked: 1
- simonyan, 2015, Very deep convolutional networks for large-scale image recognition, ICLRE
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3D Human Action Representation Learning via Cross-View Consistency Pursuit
Li, L., Wang, M., Ni, B., Wang, H., Yang, J., & Zhang, W. (2021) · 2021 IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR) · doi:10.1109/cvpr46437.2021.00471 · Cited by 236
“As shown in Table 6, TSRJI [2] supervisedly utilizes attention LSTM, ASCAL [39] adopts LSTM for skeleton modeling, and our method defeats the other unsupervised method and some of the supervised methods.”
Method
Metadata
- Authors
- Caetano, C., Bremond, F., & Schwartz, W. R.
- Affiliations
- Universidade Federal de Minas Gerais (BR)
- Venue
- 2019 32nd SIBGRAPI Conference on Graphics, Patterns and Images (SIBGRAPI)
- Publisher
- IEEE
- Published
- 2019-10
- Pages
- 16-23
- OpenAlex
- W2972794281
- Cited by
- 149
- References
- 35
- Citations by year
- 2026: 8 · 2025: 9 · 2024: 21 · 2023: 27 · 2022: 32 · 2021: 40 · 2020: 12
- FWCI
- 6.85
- Type
- conference paper
- Language
- en
- Open access
- green
- arxiv.org
- Licence
- Locations
- SIBGRAPI Conference on Graphics, Patterns and Images (SIBGRAPI) (publishedVersion)
- arXiv (Cornell University) (submittedVersion)
- arXiv (Cornell University)
- Funders
- Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
- Conselho Nacional de Desenvolvimento Científico e Tecnológico (438629/2018-3, 204952/2017-4, 2016-5, 311053/2016‐5, 2018‐3)
- Fundação de Amparo à Pesquisa do Estado de Minas Gerais (APQ-00567-14, PPM-00540-17)
- Topics
- Physical Sciences › Computer Science › Computer Vision and Pattern Recognition › Human Pose and Action Recognition
- Physical Sciences › Computer Science › Human-Computer Interaction › Hand Gesture Recognition Systems
- Physical Sciences › Computer Science › Computer Graphics and Computer-Aided Design › Human Motion and Animation
- Keywords
- 3D human action recognition, depth-first traversal, convolutional neural networks
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- Caetano, C., Bremond, F., & Schwartz, W. R. (2019). Skeleton Image Representation for 3D Action Recognition Based on Tree Structure and Reference Joints. 2019 32nd SIBGRAPI Conference on Graphics, Patterns and Images (SIBGRAPI). https://doi.org/10.1109/sibgrapi.2019.00011
