Three-dimensional face recognition method

A recognition method and three-dimensional face technology, applied in the field of three-dimensional face recognition, to achieve the effect of reducing the amount of programming, high precision, and improving development efficiency

Inactive Publication Date: 2015-04-29
SUZHOU FUFENG TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Aiming at the limitations of current two-dimensional recognition, the present invention provides a three-dimensional face recognition method

Method used

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Embodiment Construction

[0038] 1. Image acquisition

[0039] The invention adopts two CCD cameras to collect images, generates two two-dimensional images on the left and right, and displays the collected images on the image display.

[0040] 2. Perform image preprocessing

[0041] Preprocessing refers to smoothing the acquired 2D image to filter out noise. The present invention uses a mean value filter to filter data noise.

[0042] 3. Extract and match face features

[0043] The extraction of facial features includes eye calibration, nose calibration and mouth calibration.

[0044] (1) Eye calibration

[0045] For the calibration of the eyes, considering the large difference between the eyes and the skin color, especially the darkest pupil color, and the eyes are located in the upper half of the two-dimensional image, the pupil is generally considered to be a black spot in the upper half of the two-dimensional image s position. First, the method based on similarity is used to obtain the middle...

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Abstract

The invention discloses a three-dimensional face recognition method. The method comprises the following steps: calibrating eyes, noses and mouths of a collected left two-dimensional image and a collected right two-dimensional image, determining matched face feature points, then determining the three-dimensional coordinates of the feature points, and finally recognizing face features through a BP neural network algorithm. Compared with a two-dimensional recognition method, the three-dimensional face recognition method has relatively high precision, the amount of programming is greatly reduced, and the development efficiency is improved.

Description

technical field [0001] The invention relates to a three-dimensional face recognition method, which belongs to the technical field of biological feature identification. Background technique [0002] At present, the biometric features used for identification include face, voiceprint, fingerprint, iris, handwriting, hand shape, palmprint, etc. Among them, face recognition is dominant, and it is the most important feature to distinguish the difference between people. . Compared with other human biometrics, face recognition is more direct and friendly. However, due to the great similarity between faces and the high deformability of faces, the research on face recognition is extremely challenging. Two-dimensional face recognition technology has been relatively mature, but because two-dimensional face recognition is a single two-dimensional image, it is inevitably affected by lighting, background, posture and expression, etc., and cannot provide the complete information required f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06K9/60
CPCG06V20/647G06V40/165G06V40/171
Inventor 张会林孙利华
Owner SUZHOU FUFENG TECH
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