A method for automatically adjust a three-dimensional human face model

Abstract

The invention discloses an automatic adjustment method of a three-dimensional human face model, comprising the following steps: a three-dimensional scanner obtains a three-dimensional human face modeland obtains a projection map of the three-dimensional human face with texture from three angles; the three-dimensional scanner obtains a projection map of the three-dimensional human face with texture from three angles; 2D feature point detection of projection map; 2D feature point are backprojected into 3D to obtain 3D feature point; The PCA facial model is used to fit the original 3D facial model. 3D registration of that initially align mesh is performed to solve the energy equation; Recalculating texture coordinates for the final aligned mesh; After the registration of the three-dimensional face adjustment, get the adjusted three-dimensional face model. The invention adopts a set of technology for automatically recognizing three-dimensional human face characteristic points and adjusting the human face on the basis of the technology, It can beautify 3D face captured by 3D scanner with one button, simple and convenient, and has clear algorithm, friendly interface and robust results.It can be used in virtual face plastic surgery, computer animation and computer games and other fields.

Description

technical field [0001] The invention relates to the field of computer graphics and image processing, in particular to an automatic adjustment method for a three-dimensional mesh face. Background technique [0002] People all want to have a beautiful face, and cosmetic surgery is becoming more and more popular. Obtaining a three-dimensional face model through a three-dimensional scanner, and then performing simulated plastic surgery on the scanned face model has also become the main way for some beauty institutions to attract customers. However, performing plastic surgery on a 3D face model manually requires a lot of operations, and it is impossible to quickly show the results of the cosmetic surgery to customers. [0003] There are two main viewpoints in the existing 3D face adjustment methods. One is the view that there is no single beautiful facial feature (eg mouth, nose, chin) and that facial features are attractive only when they are well matched with the rest, so the...

AI Technical Summary

Problems solved by technology

However, both of these methods need to manually mark the feature points on the 3D face model, and cannot directly adjust the face model obtained by the 3D scanner.

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