Papers › Integrating Human Parsing and Pose Network for Human Action Recognition

Integrating Human Parsing and Pose Network for Human Action Recognition

16 Jul 2023arXiv:2307.07977archive 2025-07-28

Runwei Ding, Yuhang Wen, Jinfu Liu, Nan Dai, Fanyang Meng, Mengyuan Liu

Human skeletons and RGB sequences are both widely-adopted input modalities for human action recognition. However, skeletons lack appearance features and color data suffer large amount of irrelevant depiction. To address this, we introduce human parsing feature map as a novel modality, since it can selectively retain spatiotemporal features of the body parts, while filtering out noises regarding outfits, backgrounds, etc. We propose an Integrating Human Parsing and Pose Network (IPP-Net) for action recognition, which is the first to leverage both skeletons and human parsing feature maps in dual-branch approach. The human pose branch feeds compact skeletal representations of different modalities in graph convolutional network to model pose features. In human parsing branch, multi-frame body-part parsing features are extracted with human detector and parser, which is later learnt using a convolutional backbone. A late ensemble of two branches is adopted to get final predictions, considering both robust keypoints and rich semantic body-part features. Extensive experiments on NTU RGB+D and NTU RGB+D 120 benchmarks consistently verify the effectiveness of the proposed IPP-Net, which outperforms the existing action recognition methods. Our code is publicly available at https://github.com/liujf69/IPP-Net-Parsing .

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liujf69/ipp-net-parsing officialmentioned in papermentioned on GitHubpytorch report

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Tasks

Action RecognitionHuman Parsing

Results from the paper archive 2025-07-28

TaskDatasetModelMetricValueRank at snapshotLeaderboardReport
Action Recognition NTU RGB+D IPP-Net (Parsing + Pose) Accuracy (CS) 93.8 #13 of 28 Archive leaderboard report
Action Recognition NTU RGB+D IPP-Net (Parsing + Pose) Accuracy (CV) 97.1 #13 of 28 Archive leaderboard report
Action Recognition NTU RGB+D 120 IPP-Net (Parsing + Pose) Accuracy (Cross-Setup) 91.7 #9 of 21 Archive leaderboard report
Action Recognition NTU RGB+D 120 IPP-Net (Parsing + Pose) Accuracy (Cross-Subject) 90.0 #9 of 21 Archive leaderboard report

Ranks are positions in the archive's leaderboards as they stood at the 2025-07-28 snapshot. Results published since then are not among these rows, so a rank here is not a current standing.

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