Vision-based human body state judgment algorithm

A human body state and vision technology, applied in the field of computer vision, can solve problems such as high complexity and slow recognition speed, and achieve the effects of improving accuracy, strong classification ability, and convenient use

Pending Publication Date: 2019-11-29
安徽澄小光智能科技有限公司
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AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a human body state judgment algorithm based on vision in order to solve the above-mentioned problems of high

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Embodiment Construction

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0033] refer to figure 1 As shown, a human body state judgment algorithm based on vision, including moving human body detection, feature extraction and description, behavior recognition,

[0034] The specific steps of feature extraction and description are as follows:

[0035] S1, acquire the original image, obtain the foreground binary image of the original image by the motion detection algorithm, and use it as the optical flow calculation area;

[0036] S2...

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Abstract

The invention discloses a vision-based human body state judgment algorithm, which belongs to the technical field of computer vision, and comprises the following specific steps of moving human body detection, feature extraction and description, behavior recognition and feature extraction and description: S1, obtaining an original image, and obtaining a foreground binary image of the original imagethrough a motion detection algorithm to serve as an optical flow calculation region; s2, performing black edge filling on the optical flow calculation area to obtain a square optical flow graph, dividing the square optical flow graph into 16 equal parts by using a 4 * 4 grid, taking an optical flow average value of each area, and finally representing an optical flow vector of the frame of pictureby using a 16-dimensional vector; assuming that the silhouette feature vector obtained from the frame is s and the optical flow feature vector is 0, the fusion feature V of the two is equal to [s; 0].The method is simple in structure and convenient to use, improves the accuracy of behavior recognition, reduces the complexity and feature dimension of feature extraction through a quick feature fusion method, is high in practicality, and is suitable for popularization and application.

Description

technical field [0001] The invention relates to the technical field of computer vision, in particular to a human body state judgment algorithm based on vision. Background technique [0002] Judgment of human body state based on vision refers to obtaining human motion video through a camera, processing it with computer technology, and finally enabling the computer to judge and describe human behavior. Human state judgment based on vision is an important research field involving computer vision, machine learning, psychology, human kinematics and other disciplines. With the development of computer hardware and software technology and the increasing market demand for security equipment, behavior analysis is receiving more and more attention and research. [0003] Vision-based human body status recognition can be used in home security systems and medical monitoring systems. The intelligent monitoring system can analyze the behavior of the guardian. When the guardian has an abno...

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Application Information

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IPC IPC(8): G06K9/00G06K9/62
CPCG06V40/20G06F18/2411
Inventor 曾新华洪伟管一鸣
Owner 安徽澄小光智能科技有限公司
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