Human skeleton behavior identification method, system and device based on graph convolutional network

Abstract

The invention belongs to the field of computer vision and deep learning, particularly relates to a human skeleton behavior recognition method, system and device based on a graph convolutional neural network, which aims to solve the problem that the human skeleton behavior recognition result based on the graph convolutional neural network is low in precision. The method comprises the following steps of acquiring a skeleton video frame and normalizing the skeleton video frame; constructing a human joint natural connection graph corresponding to each frame of graph; learning the unnatural connection edge to obtain a human body joint connection diagram; allocating a weight value to each edge of the human body joint connection diagram; carrying out graph convolution operation to obtain the spatial information of the skeleton sequence; and carrying out convolution operation on the time dimension to obtain the behavior category of the skeleton sequence. According to the method, the natural connection edge can learn the basic human body behavior characteristics, the non-natural connection edge can learn the additional behavior characteristics, a graph is formed by the natural connection edge and the non-natural connection edge together, the human body motion information can be more fully represented, and the recognition performance is improved.

Description

technical field [0001] The invention belongs to the field of computer vision and deep learning, and in particular relates to a human skeleton behavior recognition method, system and device based on a graph convolutional network. Background technique [0002] As an important research field of computer vision, behavior recognition aims to distinguish the category of human behavior from a given video. Behavior recognition is widely used and has important research value in many fields such as smart home, motion analysis, video surveillance, and human-computer interaction. The current behavior recognition methods are mainly researched from two perspectives based on RGB video and based on human skeleton joints. The method based on RGB video is easily affected by illumination and occlusion, and has poor robustness, while the method based on human bone joint points is extremely discriminative, unaffected by illumination, and relatively sensitive to viewing angle transformation and ...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the above-mentioned problems in the prior art, that is, the problem that the accuracy of human skeleton behavior recognition results based on graph convolutional neural network is not high, the present invention provides a human skeleton behavior recognition method based on graph convolutional network, including:

Images