Behavior detection and identification method and system
An identification method and behavior technology, applied in the field of computer identification, can solve the problems of large amount of calculation, cost and timeliness of abnormal behavior analysis methods, etc., to improve detection reliability, prevent missed detection, and achieve good complementarity. Effect
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0045] like figure 1 As shown, Embodiment 1 of the present invention provides a behavior detection and recognition system, which includes:
[0046] Calculation module, for obtaining the binarized differential image sequence of the behavioral video stream, calculating the middle center of mass movement velocity, left centroid movement velocity and right centroid movement velocity of each frame of binarization difference image;
[0047] The judging module is used to compare the motion speed of the center of mass, the motion speed of the left center of mass and the motion speed of the right center of mass with the preset speed threshold, and if one or more of the three center of mass motion speeds is greater than the speed threshold, it is determined that Behavior is speeding, otherwise it is judged not speeding;
[0048] The behavior detection and alarm module is used to count the number of speeding times per unit time. If the number of speeding times is greater than the preset...
Embodiment 2
[0072] In Embodiment 2, a surveillance video-based detection method and system for violent limb behavior is provided, including preprocessing the video stream to obtain continuous grayscale images, obtaining binarized difference images, center centroid and left , the calculation of the right center of mass, the calculation of the movement speed of the three centers of mass, the detection and alarm of violent body behavior, and other steps, through the lightweight algorithm to obtain the body movement speed of the characters in the video, quickly detect the violent body behavior of the characters and give an alarm.
[0073] like figure 2 As shown, in the present embodiment 2, the violent body behavior detection system based on the monitoring video includes a video stream preprocessing module (the same as the preprocessing unit in the embodiment 1), a binarized difference image acquisition module (the same as that obtained in the embodiment 1) unit), three centroid calculation ...
Embodiment 3
[0096] Embodiment 3 of the present invention provides a non-transitory computer-readable storage medium, the non-transitory computer-readable storage medium includes instructions for executing a behavior detection and recognition method, the method includes:
[0097] Obtain the binary difference image sequence of the behavioral video stream, and calculate the middle centroid movement velocity, left centroid movement velocity and right centroid movement velocity of each frame of the binarization difference image;
[0098] Compare the motion speed of the middle center of mass, the left center of mass, and the right center of mass with the preset speed threshold, if one or more of the three center of mass motion speeds is greater than the speed threshold, it is determined that the behavior in the image is overspeed, Otherwise, it is judged as not speeding;
[0099] The number of speeding behaviors is counted per unit time. If the number of speeding times is greater than the prese...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com