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Face information collection method based on camera face recognition

A face information and face recognition technology, applied in the field of face information collection, can solve the problems of uneven distribution of hardware overhead and large network overhead, and achieve the effect of improving the monitoring effect.

Active Publication Date: 2017-11-14
深圳海清智元科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the large network overhead and uneven distribution of hardware overhead in the prior art monitoring system, the purpose of the present invention is to provide a face information collection method based on camera face recognition

Method used

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  • Face information collection method based on camera face recognition

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] The camera records the video of the detection area and stores it in the memory, and the ARM processor transmits the segmented video data to the FPGA computing chip through the BT1120 standard video data interface.

[0049] The FPGA computing chip caches the segmented video data in the memory of the FPGA computing chip and analyzes the segmented data frame by frame, picks up the brightness distribution of the face area in the image, captures the face image and records the face information. The FPGA computing chip uses the currently recorded face information to compare with the face information recorded in the last few frames to determine whether the face is consistent with the previously recorded face. If the face is judged to be a new face, a new face is assigned. Face ID, if the face is judged to be the original face, the currently recorded face information is associated with the face ID corresponding to the original face.

[0050] The FPGA computing chip gives the qua...

Embodiment 2

[0058] On the basis of Embodiment 1, when the FPGA computing chip cannot detect any human face, the ARM processor traces back to when the most recent standard human face photo was taken, and the adjusted exposure parameters are used to set the camera.

[0059] This solution is convenient to set the exposure state of the camera to the most reasonable state when there is no face in the detection area, and it is convenient to adjust to the appropriate exposure position more quickly after the face is detected again.

Embodiment 3

[0061] On the basis of Embodiment 1, the ARM controller judges the face ID after receiving the face image information. When the face ID has been captured and stored, the quality parameters of the corresponding stored face photo and the front face area and the quality parameters and face area contained in the current face image information, if the quality parameter is higher or the frontal face area is larger, the face photo is captured again and the original face photo is replaced.

[0062] If the stored face photo is a frontal face, only the quality parameters of the face photo are compared with the quality parameters of the current face image. If the quality parameter of the current face image is higher than the quality parameter of the stored face photo, a new face photo is captured and stored to replace the old face photo.

[0063] On average, photos with a larger frontal area have correspondingly higher quality parameters of the face image, so this solution is suitable fo...

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Abstract

The invention provides a face information collection method based on camera face recognition. The method comprises the steps that: a master controller collects video data and caches the video data into a main storage device, the main controller transmits segmented video data in the main storage device to an image computing chip, the main controller receives quality parameters of face information and an face image in the segmented video data analyzed by the image computing chip, and the main controller captures a face photo and stores and uploads the face photo when the quality parameters of the face information and the face image reach preset indexes. According to the method, through adding the image computing chip to take a lot of simple face recognition work and using a general-purpose processor to obtain and upload the face photo according to a result of face identification, a bandwidth waste caused by the direct uploading of original video code stream to allow a server to carry out face recognition in the past and hardware resource waste of the server can be avoided, and the method is suitable for the simultaneous monitoring and tracking of more faces, and the monitoring effect is improved.

Description

technical field [0001] The invention relates to a method for collecting face information, in particular to a method for collecting face information based on camera face recognition. Background technique [0002] In today's society, due to security considerations, video surveillance equipment is more and more applied to the monitoring of safe cities, as well as the monitoring of various places such as communities and factories. In most cases, the monitoring process is aimed at the identification of people, and with the maturity of face recognition technology, it is possible to automatically digest the faces in the monitoring video data by artificial intelligence. As monitoring equipment becomes more and more popular, and face recognition has higher requirements for video quality, the corresponding monitoring data is also increasing. [0003] At present, when using face recognition in surveillance systems, in most cases, the camera sends video data to the background server, a...

Claims

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Application Information

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IPC IPC(8): G06K9/00G06T7/00
CPCG06T7/0002G06T2207/10016G06T2207/30201G06T2207/30168G06V40/166G06V40/172G06V10/95
Inventor 周波
Owner 深圳海清智元科技股份有限公司
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