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Three-dimensional face identification method applied to jail gateway management system

A technology of three-dimensional face and management system, applied in the field of three-dimensional face recognition of prison entrance and exit management system, can solve problems such as the decline in recognition accuracy, achieve improved efficiency and accuracy, reliable identification tasks, and maintain computational complexity. Effect

Inactive Publication Date: 2017-10-10
HEFEI UNIV OF TECH
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a three-dimensional face recognition method used in prison entrance and exit management systems to solve the problem

Method used

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  • Three-dimensional face identification method applied to jail gateway management system
  • Three-dimensional face identification method applied to jail gateway management system
  • Three-dimensional face identification method applied to jail gateway management system

Examples

Experimental program
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Example Embodiment

[0029] Such as figure 1 As shown, a three-dimensional face recognition method for prison entrance and exit management system includes the following steps:

[0030] (1) Select 2500 three-dimensional face scans of 100 objects as the training database.

[0031] (2) Divide the area of ​​each scan image of each object, and then perform triangular meshing of each area.

[0032] (3) Use the Mesh-LBP operator to extract the local feature histogram of each region of each scanned image and save it as a feature vector. The Mesh-LBP operator is as follows:

[0033]

[0034] In formula (1), k refers to the mesh number of the outer ring established by the Mesh-LBP operator rule; m is the total number of meshes of the outer ring; f c Is the center grid; f k Is the grid of the outer ring; h(x) is a scalar function defined on the grid, which can use four functions: curvature, Gaussian curvature, curvature, and surface normal angle; α(k) is a weight function, which can be taken in different ways Corre...

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Abstract

The invention discloses a three-dimensional face identification method applied to a jail gateway management system. According to the method of the invention, the three-dimensional face data of registered persons serving their sentences in a jail and visitors to these persons are used as a training database. Mesh-LBP operators extract and combine the local characteristics of the registered objects and the to-be-detected objects so as to describe the overall characteristics of the objects. Then, the three-dimensional face data of the registered objects are used to train a SVM model, and then, the to-be-detected objects are placed in the SVM model for classification. Based on the classification result, the identity information of the objects is determined.

Description

technical field [0001] The invention relates to the field of face recognition methods, in particular to a three-dimensional face recognition method used in prison entrance and exit management systems. Background technique [0002] Prison is the country's penalty enforcement agency and the main place to detain criminals. Due to its own particularity, it has special requirements for safety management. The AB gate of the prison is the only place to pass in and out of the prison supervision area, and must be strictly supervised. The traditional way of entering and exiting the AB gate is to use the combination of IC card and police officers on duty to identify with naked eyes. This method has certain disadvantages. Various factors such as fatigue at night and sense of responsibility of the staff on duty greatly affect the security of the prison. . Moreover, there are many foreign personnel and complex composition of prison personnel, and the traditional manual control method h...

Claims

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Application Information

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IPC IPC(8): G06K9/00G07C9/00
CPCG07C9/37G06V20/64G06V40/161G06V40/172
Inventor 詹曙雷超杨福猛
Owner HEFEI UNIV OF TECH