Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Video retrieval method for quickly locating sudden case

A case and video technology, applied in the field of intelligent security, can solve the problems of not being able to quickly locate the desired viewing position when viewing video surveillance images, wasting time and energy, etc., to achieve the effect of quickly detecting emergencies and saving storage space

Active Publication Date: 2016-08-17
NANJING COLLEGE OF INFORMATION TECH
View PDF3 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is: under the prior art, it is impossible to quickly locate the desired viewing position when viewing video surveillance images, which wastes time and energy

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Video retrieval method for quickly locating sudden case
  • Video retrieval method for quickly locating sudden case
  • Video retrieval method for quickly locating sudden case

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0016] Embodiment A kind of video retrieval method of rapidly locating sudden case, comprises the following steps:

[0017] 1) Set up video recording equipment near the entrance and exit of the selected area;

[0018] 2) Collect the face images of specific groups of people entering and leaving the area through video recording equipment, enter the personal information corresponding to the face image, and set up a face database, which includes face images and their corresponding personal information, so The face image is taken when the face size reaches the set size K×L when the person approaches the video recording device;

[0019] 3) Real-time video recording, constantly comparing the average absolute error of the pixel gray value of the two frames of video images in the interval to determine whether a moving body enters the video monitoring area; when the moving body enters the video monitoring area, an inter-frame difference algorithm is used , to separate the moving body i...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a video retrieval method for quickly locating a sudden case. According to the method, whether persons enter and leave a video monitoring area or not is judged by performing an inter-frame difference algorithm on monitoring video streaming, a motion area in a video image is extracted, if human faces are detected in the motion area and the size is changed to be K*L, shooting is performed, the shot human faces are compared with human faces in a database for recognition, and if the shot human faces can be recognized through comparison, entering time and leaving time of the persons are recorded; if human faces cannot be detected or cannot be matched with the human faces in the database, the image is reserved and numbered, the time is recorded, and a data inquiry table is generated by the aid of all results, so that a video segment can be located quickly and conveniently when a video is viewed.

Description

technical field [0001] The invention relates to a video retrieval method for quickly locating sudden cases, belonging to the field of intelligent security. Background technique [0002] In some shopping malls and office buildings, after get off work, there are very few people entering and leaving. When a case occurs and the video recording needs to be adjusted, it often requires a lot of manpower to watch it from the beginning, and no detail can be missed to find the clues of the crime. Not only is it very hard for the viewers, but it also wastes a lot of manpower and delays the time to solve the case. Contents of the invention [0003] The technical problem to be solved by the present invention is: under the prior art, the problem of wasting time and energy is that the viewing position cannot be quickly located when viewing the video surveillance image. [0004] In order to achieve the above object, the technical solution provided by the present invention is: a video re...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G06F17/30
Inventor 金明聂佰玲高燕袁迎春周波
Owner NANJING COLLEGE OF INFORMATION TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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