Human behavior characteristic extraction method and system and abnormal behavior detection method and system

Abstract

The embodiment of the invention provides a human behavior characteristic extraction method and a system and an abnormal behavior detection method and a system. The human behavior characteristic extraction method comprises the steps of: inserting a preset number of image frames into an image sequence of cube data in the process of updating the cube data every time, and deleting the original corresponding preset number of image frames in the image sequence out of the image sequence of the cube data according to a time sequence, wherein the preset number is more than 1, and the number of the image frames with human motion continuity is not influenced; scanning and assigning the images of the cube data according to the preset pixel number of the moving mask template in the process of scanning the images of the cube data every time, wherein the preset pixel number of the moving mask template is more than 1 and the pixel number of human posture and outline is not influenced; and extracting the assigned characteristics to form the human behavior characteristics.

Description

technical field [0001] The present invention relates to the technical field of pattern recognition, more specifically, to a method and system for extracting human behavior features and a method and system for detecting abnormal behavior. Background technique [0002] Abnormal human behavior detection is one of the most active research topics in the field of computer vision. At present, it has broad application prospects in the intelligentization of security and early warning in supermarkets, banks, transportation centers, and hospitals. Abnormal human behavior detection refers to firstly analyze and model the custom normal behavior and abnormal behavior, and then classify the target behavior according to the similarity between the target behavior and normal behavior and abnormal behavior, so as to judge whether the target behavior is Abnormal; wherein, the target behavior refers to the human behavior to be detected. Here, normal behaviors mainly refer to normal behaviors th...

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Problems solved by technology

[0006] In view of this, the embodiments of the present invention provide a method and system for extracting human behavior features and a method and system for detecting abnormal behaviors, so as to solve the problem of large amount of data processing and occupation of system resources in the process of extracting human behavior features in the prior art. Too many, resulting in slow extraction of human behavior features

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