期刊
SOFT COMPUTING
卷 27, 期 1, 页码 405-421出版社
SPRINGER
DOI: 10.1007/s00500-021-05649-w
关键词
Activity recognition; Microsoft Kinect; Multi-view; Rule-based classifier; Tracking skeleton
This paper proposes a rule-based classifier method for real-time recognition of view-invariant multiple human activities. By applying a skeleton-tracking algorithm, activities are recognized independently from each tracked skeleton. Experimental results demonstrate the robustness and efficiency of the method for activities with multiple views, scaling, and phase variations.
Identification of human activity with decent precision is a challenging task in the field of computer vision, especially when applying for surveillance purpose. A rule-based classifier method is proposed in this paper, which is capable of recognizing a view-invariant multiple human activity recognition in real time. A single Kinect sensor is used for the input of RGB-D data in real time. Initially, a skeleton-tracking algorithm is applied. After tracking the skeletons, activities are recognized from each individually tracked skeleton independently. Different rules are defined to recognize discrete skeleton positions and classify a particular order of multiple postures into activities. During the experimentation, we examine about 14 activities and found that the proposed method is robust and efficient concerning multiple views, scaling and phase variation activities during different realistic acts. A self-generated dataset in the controlled environment is used for the experiment. About 2 min of data was collected. Data from two different males were collected for multiple human activities. Experimental results show that the proposed method is flexible and efficient for multiple view activities as well as scale and phase variation activities. It provides a detection accuracy of 98%.
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