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Customs identity identification system and method based on local discriminant CCA

An identity verification, local technology, applied in the field of identity verification and pattern recognition, can solve the problem of difficult recognition of passport faces and video images

Active Publication Date: 2018-11-16
XIJING UNIV
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Problems solved by technology

[0005] The purpose of the present invention is to provide a customs identity verification system and method based on local discrimination CCA. identity, improve the accuracy of customs personnel's identity verification, and reduce the time of identity verification

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  • Customs identity identification system and method based on local discriminant CCA
  • Customs identity identification system and method based on local discriminant CCA
  • Customs identity identification system and method based on local discriminant CCA

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Embodiment Construction

[0053] The technical solutions of the present invention will be further described below in conjunction with the drawings and embodiments.

[0054] A method for establishing a feature library for customs identity verification based on local discriminant CCA, such as figure 1 Shown is the flow chart of the establishment method of the customs identity verification feature library based on local discrimination CCA of the present invention, the method includes:

[0055] (S1) Intercept the face image in the passport and the face image in the video, unify the size and convert the image into a grayscale image, and obtain the image pairs of N passport faces and video faces of M individuals where g xi and g yi are the passport face and video face images of the i-th image pair, L(x i ) is the i-th image pair The identity category label; according to an embodiment of the present invention, it adopts a rectangular frame with a height to width ratio of 120:80 to frame the face image i...

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Abstract

The invention discloses a customs identity identification system and method based on local discriminant CCA. The method for establishing a feature library comprises: a face image in a passport and a face image in a video arecut out, dimensions are unified, and the images are converted into grayscale images to obtain image pairs of N passport faces and video faces of M persons; each column of eachgrayscale image is obtained to obtain a vector representation of the grayscale image, and reduction is carried out to obtain vector pairs corresponding to the image pairs; two matrixes are defined, projection matrices in pairs are searched by CCA optimization and thus correlation between typical variables after projection is maximized, and two mapping matrixes are obtained; vector pairs corresponding to image pairs of random passport faces and video faces are mapped by using Wx and Wy to obtain low-dimensional fusion feature vectors, and all low-dimensional fusion feature vectors are stored ina feature library. With the system and method disclosed by the invention, the identity can be verified accurately; the accuracy of identity identification of the customs officers is improved; and theidentity identification time is shortened.

Description

technical field [0001] The invention relates to the technical field of identity verification and pattern recognition, in particular to a customs identity verification system and method based on local discriminant CCA. Background technique [0002] After the September 11 incident in the United States in 2001, customs security inspections became more stringent than before. Generally speaking, the identity verification of customs is mainly to judge whether the two face images are the same person through the visual inspection of customs inspectors and comparison of the face on the passport with the live video face. In large airports, this method is slow in verification speed, highly subjective, and may have misjudgments. It is also a cumbersome work and cannot meet the needs of agricultural production. [0003] The customs identity verification method based on computer image processing technology has the characteristics of fast, accurate and real-time, which can assist customs ...

Claims

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Application Information

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IPC IPC(8): G06K9/00G06K9/62
CPCG06V40/16G06F18/24147
Inventor 张善文林东王旭启刘影
Owner XIJING UNIV
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