Full-automatic modeling approach of three dimensional faces based on phase deviation scanning

A technology of 3D face and modeling method, applied in 3D modeling, image data processing, instruments, etc., can solve the problems of not considering the fineness of template and point cloud data, difficult to guarantee registration accuracy, redundant data, etc. Achieve high modeling automation, improve registration accuracy, and high-speed scanning effects

Inactive Publication Date: 2012-09-12
BEIHANG UNIV
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Problems solved by technology

However, the existing standard template registration technology does not consider whether the fineness of the template and the point cloud data match,

Method used

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  • Full-automatic modeling approach of three dimensional faces based on phase deviation scanning
  • Full-automatic modeling approach of three dimensional faces based on phase deviation scanning
  • Full-automatic modeling approach of three dimensional faces based on phase deviation scanning

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Embodiment Construction

[0019] The method for automatic three-dimensional human face modeling based on phase shift scanning in the present invention is divided into two steps in specific implementation, which are three-dimensional human face depth data scanning and three-dimensional human face non-rigid automatic registration based on adaptive topology. For step 1, the present invention first elaborates the camera / projector joint calibration method proposed by the present invention, and then introduces the deployment of the phase shift scanning system and the structured light pattern adopted on this basis, and gives the depth of the scanned object Data recovery algorithm; for step 2, the present invention introduces in detail the non-rigid registration algorithm and the adaptive topology change strategy respectively. Finally, on the basis of introducing the theoretical method, combined with the practical application, the experimental results of using the method of the present invention to realize the ...

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Abstract

The invention proposes a full-automatic modeling approach of three dimensional faces based on phase deviation scanning. The approach firstly obtains depth point cloud data of the face part of a scanned person by phase deviation scanning technology, and then registers the point cloud data by using a new self-adaptation topology non-rigid registration method to acquire a smooth face triangle mesh model with continuous and complete topology. The experimental result proves that the modeling process provided by the approach makes all of the general users obtain their own individualized three dimensional face model, and the modeling is significant to the popularization of three-dimensional facial animation in the application of computer graphics.

Description

technical field [0001] The invention relates to the field of three-dimensional human face scanning and non-rigid registration in the field of computer simulation of three-dimensional human face modeling. Background technique [0002] Face modeling is a research hotspot in computer graphics and computer vision. There are many good methods for the establishment of general standard face models, but it is much more difficult to model specific faces. So far, there is no automatic, efficient and realistic method. [0003] At present, the existing (semi) automatic face modeling technology methods can be divided into the following three categories: one is to use complex and expensive hardware devices such as three-dimensional laser scanners, and cooperate with corresponding algorithms to obtain geometric and texture data; two. It uses ordinary cameras to collect two-dimensional face image data, supplemented by complex image processing and computer vision methods for data reconstruc...

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Application Information

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IPC IPC(8): G06T17/00G06T7/00
Inventor 赵沁平高玉建郝爱民王莉莉
Owner BEIHANG UNIV
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