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Journal Article
Fast Random‐Forest‐Based Human Pose Estimation Using a Multi‐scale and Cascade Approach
- Authors
- Ju Yong Chang, Seung Woo Nam
- Issue Date
- 2013-12
- Citation
- ETRI Journal, v.35, no.6, pp.949-959
- ISSN
- 1225-6463
- Publisher
- 한국전자통신연구원 (ETRI)
- Language
- English
- Type
- Journal Article
- Abstract
- Since the recent launch of Microsoft Xbox Kinect, research on 3D human pose estimation has attracted a lot of attention in the computer vision community. Kinect shows impressive estimation accuracy and real-time performance on massive graphics processing unit hardware. In this paper, we focus on further reducing the computation complexity of the existing state-of-the-art method to make the real-time 3D human pose estimation functionality applicable to devices with lower computing power. As a result, we propose two simple approaches to speed up the random-forest-based human pose estimation method. In the original algorithm, the random forest classifier is applied to all pixels of the segmented human depth image. We first use a multi-scale approach to reduce the number of such calculations. Second, the complexity of the random forest classification itself is decreased by the proposed cascade approach. Experiment results for real data show that our method is effective and works in real time (30 fps) without any parallelization efforts. © 2013 ETRI.
- KSP Keywords
- 3D human pose estimation, Computer Vision(CV), Computing power, Depth image, Estimation accuracy, Experiment results, Multi-scale approach, Random Forest Classifier, Real data, Real-time 3d, Speed-up