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Network topology model construction based three-dimensional human face cartoon making method

A 3D face and mesh topology technology, applied in animation production, 3D modeling, 3D image processing and other directions, can solve the problem of difficult transfer of animation, avoid complexity and tediousness, improve production efficiency, ensure simulation and real-time sexual effect

Inactive Publication Date: 2007-02-28
ZHEJIANG UNIV
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

This approach allows for realistic and vivid animation of a specific character, but the resulting animation is difficult to transfer to other characters

Method used

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  • Network topology model construction based three-dimensional human face cartoon making method
  • Network topology model construction based three-dimensional human face cartoon making method
  • Network topology model construction based three-dimensional human face cartoon making method

Examples

Experimental program
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Effect test

Embodiment

[0034] First of all, the motion data of the face can be collected by the 3D motion data capture device, and the main feature points of the performer’s face are marked with reflective materials, as shown in Figure 1 (left), or the captured 3D motion can be read from the computer storage device data; in addition, establish a three-dimensional face grid model through a three-dimensional scanner, or read an existing three-dimensional face grid model from a computer storage device, and use a three-dimensional software package to draw the three-dimensional face grid model on the display. Calibrate the corresponding control points of the motion capture data on the 3D face grid through the computer input device, that is, mark all or part of the marker points in the motion capture data on the 3D face surface grid correspondingly, and establish the motion capture data and the 3D surface The corresponding relationship of the grid is shown in Fig. 1 (right).

[0035] After building the 3D...

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Abstract

The invention relates to a method for producing three-dimension face cartoon, based on network topology model construction, wherein it comprises: first obtaining rare three-dimension motion catch data and three-dimension face curvature grid; then marking relative control point of motion catch data on the three-dimension face grid; using short distance as the shortest distance on the three-dimension curvature to build the models of topology structure and seam of three-dimension curvature; in the deformation of free curvature, using short distance to calculate the distance between control point and other points; using the displacement of control point as parameter and the radial basic function algorism matched with short distance to deform the three-dimension curvature, to generate the three-dimension face cartoon. The invention can obtain high-accuracy three-dimension face cartoon, effectively separate the seam and continuous curvature of face, and improve the producing efficiency.

Description

technical field [0001] The invention relates to the technical field of computer three-dimensional animation, in particular to a method for producing three-dimensional human face animation based on grid topology modeling. Background technique [0002] The earliest work on 3D facial animation technology began in 1972. Subsequent scholars have done a lot of work in order to generate realistic and vivid 3D facial animation. However, due to the complex anatomical structure of the human face, the subtle non-rigid movements are difficult to model mathematically, and at the same time, people's sensitivity to the appearance of the human face makes this topic very difficult. At present, some progress has been made in the work of realistic 3D facial animation, which can basically be divided into the following categories: [0003] Interpolation-based methods: The earliest facial animations were based on interpolation methods. First, the animator makes some specific facial expression ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T15/70G06T17/00G06T1/00G06T13/40
Inventor 庄越挺王玉顺肖俊张剑
Owner ZHEJIANG UNIV
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