Image processing device, image processing method, and image processing program

An image processing device and image technology, applied in image data processing, image enhancement, image analysis, etc., can solve problems such as inability to obtain judgment results

Pending Publication Date: 2021-11-19
FUJITSU LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In the authenticity judgment based on the existing facial feature points, it is difficult to completely prevent impersonation attacks using photos, and sometimes the correct judgment result cannot be obtained
[0008] In addition, this problem is not limited to personal authentication using facial images, but occurs in various information processing using facial images

Method used

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  • Image processing device, image processing method, and image processing program
  • Image processing device, image processing method, and image processing program
  • Image processing device, image processing method, and image processing program

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Embodiment Construction

[0023] Embodiments will be described in detail below with reference to the drawings.

[0024] In the technology of Patent Document 1, the positions of the eyes, mouth, and nose are used as facial feature points, and when registering a facial image, the person subject to registration is asked to perform a predetermined facial movement, and the eyes, mouth, and facial features at this time are registered. and nose movement. And, at the time of authentication, the person to be authenticated performs the same movement, and it is determined whether the face image is a real person's face or not based on the movements of the eyes, mouth, and nose at this time.

[0025] In the technique of Patent Document 2, the positions of the eyes and nostrils are used as facial feature points, the person to be authenticated is made to move in any direction or in a predetermined direction, and it is determined whether the facial image is It's a real face.

[0026] However, in authenticity determi...

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PUM

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Abstract

The invention relates to an image processing device, an image processing method, and an image processing program. A storage unit stores a time sequence of a plurality of images taken of a subject when the subject is instructed to change the orientation of their face. An action identification unit extracts a face region from each of the plurality of images, derives a pixel value change characteristic of a plurality of pixels arranged in a prescribed direction in the face region, and identifies an action by the subject on the basis of a chronological change in the change characteristic derived from each of the plurality of images. A determination unit determines the authenticity of the subject on the basis of the action by the subject.

Description

technical field [0001] The present invention relates to an image processing device, an image processing method, and an image processing program. Background technique [0002] The biometric authentication technique is a technique for performing identity authentication using the biometric information of an authentication target person. The biometric authentication technology includes face authentication technology, fingerprint authentication technology, vein authentication technology, voiceprint authentication technology, and the like. [0003] In face authentication technology, biometric information obtained from a face image of a person to be authenticated is used for personal authentication. In this case, another person can pass himself off as the person by using the photo of the person to be authenticated. Therefore, it is easier to carry out a masquerade attack than other biometric authentication technologies. In order to prevent impersonation attacks, it is preferable ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/00
CPCG06T7/00G06V40/16G06V40/40G06V40/171G06T7/11G06T7/20G06T2207/30201G06T5/00G06V40/168G06V40/165G06V40/172G06V40/20
Inventor 松涛智明
Owner FUJITSU LTD
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