Face detection and search method for a monitoring video

A technology of surveillance video and search method, which is applied in the field of face recognition, can solve the problems of not being able to obtain high-quality face image effects, and cannot solve the problem of missing face detection, and achieve the effect of reliable search

Active Publication Date: 2019-03-26
湖南众智君赢科技有限公司
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Problems solved by technology

[0004] The main work of the above methods is concentrated on the facial feature representation part, which cannot solve the problem of missing face detection caused by the small face area in the surveillance video, and the above method mainly ext

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  • Face detection and search method for a monitoring video
  • Face detection and search method for a monitoring video
  • Face detection and search method for a monitoring video

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Embodiment Construction

[0056] The technical solutions in the embodiments of the present invention will be clearly and completely described below in combination with the accompanying drawings in the embodiments of the present invention, and further detailed descriptions will be given, but the embodiments of the present invention are not limited thereto.

[0057] refer to figure 1 , face detection and search method for surveillance video, comprising the following steps:

[0058] S1 trains the face detector;

[0059] S1.1 Create a training data set;

[0060] The training data set includes multiple (usually not less than 10,000) surveillance video images containing different face images, and the area size of the face images in each surveillance video image ranges from a small size (such as 20×20 pixels) to Larger size (taking the surveillance video resolution of 1280×1024 as an example, the largest face is 256×256 pixels, and the larger size of the face does not belong to the commonly used range of su...

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Abstract

The invention provides a monitoring video-oriented face detection and search method. The method comprises the following steps: firstly, training a face detector; Detecting an input monitoring video frame to be subjected to face recognition and search by using a face detector to obtain a face region If in the monitoring video frame, and positioning five sense organs in the face region If to obtaina monitoring video face five sense organ positioning result; Determining a target face image, and performing five-sense-organ positioning on the target face image to obtain a target face five-sense-organ positioning result; And then calculating the similarity between the whole face and the local five sense organs according to the five sense organ positioning result of the monitoring video face image and the five sense organ positioning result of the target face image obtained in the previous step. And finally, calculating probability fusion similarity of the monitoring video face image and thetarget face image to obtain a search matching result. By using the method, the search result is more accurate.

Description

technical field [0001] The invention relates to the technical field of face recognition, in particular to a video surveillance-oriented face detection and search method. Background technique [0002] With the large-scale application of video surveillance systems and in-depth research on related recognition algorithms, the combination of face recognition search based on face recognition technology and video surveillance can effectively improve the intelligence level of video surveillance, especially in network pursuit, Combating human trafficking and other aspects can improve work efficiency, reduce manual workload, and increase the probability of finding the target person. At present, a prominent restrictive factor of this application is: since the surveillance video mainly shoots a large scene, it is easy to cause the face area in it to be small, so that the face cannot be detected, resulting in poor recognition and search results. [0003] Existing face detection and sear...

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Application Information

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IPC IPC(8): G06K9/00
CPCG06V40/161G06V40/165
Inventor 谢剑斌李沛秦闫玮张术华
Owner 湖南众智君赢科技有限公司
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