Face recognition and face automatic database building algorithm for security gate based on multi-camera fusion

Abstract

In order to solve the problem of fast security inspection of the security inspection door, the present invention proposes an algorithm for face recognition at the security inspection door and automatic face database building based on multi-camera fusion. The algorithm of the present invention does not need the active cooperative face scanning of the inspected person, but only needs to walk according to the normal route, which belongs to the non-cooperative face recognition algorithm. Multiple cameras are installed on the security gate along the direction of people entering. These cameras collect video at the same time for face detection. The detected faces are screened by the face quality evaluation module after face tracking, and the screened faces pass through The corresponding upper body matching algorithm selects faces belonging to the same person, and then deletes faces with too large angles through pose estimation, and then aligns and calibrates the faces and inputs them into a deep convolutional neural network to extract features. Based on the facial features extracted above, the multi-camera face comparison algorithm is used for face matching and automatic database building. The multi-camera fusion face recognition algorithm of the security gate of the present invention significantly improves the speed of security check and reduces safety hazards such as crowding caused by security check.

Description

technical field [0001] The invention belongs to the field of security and security inspection, and relates to pattern recognition, graphic image processing, machine learning, etc., using multiple cameras to collect faces, and merging these faces through face pose estimation and face recognition technology based on deep learning, Then automatically build a multi-camera face recognition library. Background technique [0002] The world seems to be peaceful, but it is not safe. Terrorism and extremism are quietly infiltrating people's lives, so security precautions are still a very important topic. To a certain extent, security inspection can detect dangerous goods in time to ensure the safety of people's lives and property. Security inspection equipment has been deployed in various public places such as airports, subways, and important venues. The security gate is a kind of equipment for detecting the human body. The domestic human body security check mainly adopts walk-throug...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem of fast security inspection of the security inspection door, the present invention proposes a security inspection door face recognition and face automatic database building algorithm based on multi-camera fusion

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