A unique face search method for grassroots public security, stability maintenance and anti-terrorism

A search method and security technology, applied in the field of special face search, can solve the problems of weak intelligent processing ability, difficulty in realizing more advanced and deeper applications, weak automatic data analysis function, etc., and achieve the effect of good quality and efficiency.

Active Publication Date: 2017-01-25
NAT UNIV OF DEFENSE TECH +1
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0005] Weak intelligent processing capability: the existing monitoring system has weak data automatic analysis function, making it difficult to realize more advanced and deeper applications;

Method used

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  • A unique face search method for grassroots public security, stability maintenance and anti-terrorism
  • A unique face search method for grassroots public security, stability maintenance and anti-terrorism
  • A unique face search method for grassroots public security, stability maintenance and anti-terrorism

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Embodiment Construction

[0065] The specific face search method for grassroots public security, stability maintenance and anti-terrorism first extracts the motion frames, and then uses the fast AAM method based on cluster analysis to detect and locate possible face images in the motion frames, and then divides the face images It is a local component, and then extracts its features based on the dynamic joint deep neural network for each component, preferably compares the specific features with the target face database, returns the comparison result, and realizes the search.

[0066] The specific steps are:

[0067] 1. Target extraction for motion frames

[0068] Perform motion analysis on video streams or video files, only for continuous n The part of the frame key frame in which motion occurs, and the subsequent face detection and search processing are performed, among which n Take 3 to 5. The specific process is:

[0069] Step1: Decode the video file and extract the continuous n frame keyframe...

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Abstract

The invention relates to a specific face searching method for grassroots policing, safeguard stability and counter-terrorism. The method comprises the steps that firstly, movement frames are extracted; secondly, in the movement frames, dynamic clustering analysis and the AAM method are combined for fast detection, a face image which may exist is positioned, and the face image is segmented into local parts; thirdly, the features of all the parts are extracted on the basis of a dynamic association DNN; finally, the specific features are compared with a target face library, comparison results are returned, and searching is implemented. According to the specific face searching method, face detection, face recognition and searching processing are only performed on the movement parts of consecutive n key frames, so that processing resources are effectively reduced, the range of processing is decreased, and processing efficiency is enhanced. Furthermore, as classification results of the multiple local face parts are converged on the basis of the dynamic weighting method, the intensity of the specificity of the local parts can be effectively embodied, and search results are more accurate.

Description

technical field [0001] The invention relates to a specific face search method for grassroots public security, stability maintenance and anti-terrorism. Background technique [0002] Our country has vigorously carried out the construction of urban monitoring systems, using modern technologies such as video collection, network transmission, and image processing, to build an overall urban monitoring system in an organized manner according to law. Set up a video surveillance system at places such as stations, checkpoints, etc., and transmit video images to public security organs at all levels through the network for storage. At present, public security organs mainly use manual observation to filter and analyze massive surveillance videos, and make emergency response to abnormal situations found manually through the monitoring center, or relevant departments of public security organs can check through time to obtain clues to solve the case. The current working mode has the follo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/00G06K9/62
Inventor 谢剑斌李沛秦闫玮刘通崔一兵李欣
Owner NAT UNIV OF DEFENSE TECH
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