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Three dimension face identifying method based on polar spectrum image

A 3D face and spectral image technology, applied in the field of 3D face recognition, can solve problems such as difficult application of 3D face, excessive computing time, and immature processing of 3D face

Active Publication Date: 2007-05-09
浙江浙大西投脑机智能科技有限公司
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  • Application Information

AI Technical Summary

Problems solved by technology

Although 3D faces contain more information than flat images, the processing of 3D faces is not very mature.
On the one hand, for faces with different poses, more computing time is required for alignment; on the other hand, due to the irregularity of the face space, existing spatial statistics and analysis methods are also difficult to directly apply to 3D faces. superior

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  • Three dimension face identifying method based on polar spectrum image
  • Three dimension face identifying method based on polar spectrum image
  • Three dimension face identifying method based on polar spectrum image

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Embodiment Construction

[0021] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0022] One, overall thought of the present invention:

[0023] The spatial distribution of 3D faces is irregular, and the existing representation methods cannot describe 3D faces well. We mainly consider the following three aspects: when mapping a 3D plane to a 2D plane, how to keep the recognition information of the 3D face to a minimum; how to process the mapped 2D plane so that it has nothing to do with the initial pose; which method to use A 2D Face Recognition Method to Recognize Pose-Independent Images.

[0024] Two, this three-dimensional face recognition method based on polar spectrum image of the present invention, (as shown in Figure 1) its steps are as follows:

[0025] 1. Face feature area interception:

[0026] The data volume of the entire face is very large. We consider removing some points that contain relatively little information, s...

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Abstract

The 3D face identifying method based on polar spectrum image includes the following steps: 1) intercepting face characteristic area, which is one 3D spherical area with nose tip as center and proper radium; 2) mapping the intercepted 3D face area to 2D plane to obtain 2D face parameters: 3) expanding the 3D image of face and performing 2D image processing to obtain so-called polar spectrum image, which is planar image of face constructed from 3D image of face in different postures and is posture independent; and 4) identifying polar spectrum face image through proper algorithm. The present invention has the beneficial effect of identifying the face in different expressions.

Description

technical field [0001] The invention relates to a three-dimensional human face recognition method, which is mainly a three-dimensional human face recognition method based on polar spectrum images to process three-dimensional human face recognition based on a new idea based on parameterization and spectrum. Background technique [0002] Computer face recognition has been extensively studied due to its broad application prospects, and many scientific research results have been achieved so far. Due to changes in facial expressions, shooting angles or shooting lighting conditions, the features in the obtained face photos are different, so two-dimensional face recognition is greatly limited. [0003] In order to overcome the shortcomings of face recognition methods that only rely on 2D face photos, we turn our attention to 3D faces. With the development of 3D scanning technology, the identity authentication method based on 3D face is a research hots...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/00
Inventor 潘纲吴朝晖郑磊
Owner 浙江浙大西投脑机智能科技有限公司