Corresponding three-dimensional face recognition method based on dense point
A technology of 3D face and recognition method, applied in the field of 3D face recognition, can solve the problems affecting the performance of 3D face recognition, many interference areas, and large amount of calculation
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[0034] With reference to the accompanying drawings in the description, the specific embodiments of the present invention are described in detail below:
[0035] 1. Kuji 3D face model preprocessing
[0036] The preprocessing is divided into three steps: convert the face model to the face axis coordinate system, cut the face, obtain 13 control points of the 3D face model, and obtain 13 average marker points of the Kuji face model.
[0037] (1) Determine the main axis coordinate system of the face and cut the face
[0038] The face model is approximated as an ellipsoid with a long vertical direction, a middle left and right span, and a small front and rear thickness. Doing the principal component analysis (Principle Component Analysis) on the face point set distribution, you can get three eigenvectors, these three eigenvectors correspond to the three eigenvalues sorted from large to small, according to the relationship between the eigenvalues and eigenvectors of PCA , the m...
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