Control method of three-dimensional facial animation

A technology of 3D face and control method, which is applied in 3D image processing, image data processing, instruments, etc., and can solve the problems of realism, credibility, poor richness, inability to real-time, loss of animation effects, etc.

Inactive Publication Date: 2010-06-16
SICHUAN UNIV
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AI Technical Summary

Problems solved by technology

[0002] The pioneering work of 3D facial expression animation technology was done by Parke in the 1970s. Due to the strong application and research value of realistic face modeling and animation technology, outstanding researchers all over the world Continuously adding to this research field, the 3D face modeling and animation technology has been significantly developed. However, due to the complexity of the face structure and the richness of facial expressions, the 3D facial expression animation virtual scenes currently studied are either Relatively elementary, its sense of reality, credibility, and richness are poor; or it has a strong sense of reality but a huge amount of calculation, which cannot
However, since the model is solid, there are too many points to be calculated. If the method of calculating point displacement in real time is used, it is impossible to meet the real-time requirements.
If the expressions are pre-stored and the interpolation method is used to generate intermediate expressions, the animation effect will be lost

Method used

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  • Control method of three-dimensional facial animation
  • Control method of three-dimensional facial animation
  • Control method of three-dimensional facial animation

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Embodiment Construction

[0060] The present invention will be further described below in conjunction with accompanying drawing:

[0061] According to the knowledge of human face anatomy, the present invention divides the three-dimensional human face model into multiple regions, and then uses mechanical analysis to obtain the movement of each point in the region. Through the proper combination of each area, various actions and expressions are formed. Among them, the ellipsoidal area is arranged around the mouth, which is used to generate high-difficulty effects in facial animation such as pouty mouth and O-shaped mouth, while the fan-shaped area is arranged in other areas of the face. By analyzing the force of these fan-shaped areas , Pulling can form various common facial movements, such as smiling, facial movement and so on.

[0062] 1. Fan-shaped area

[0063] Since the human face is elastic, the force analysis of the area refers to the spring model. First, assign a mass M and a Yin coefficient D ...

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Abstract

The invention discloses a control method of three-dimensional facial animation, which is characterized in that the control method comprises the following steps: obtaining a three-dimensional facial feature network model; dividing the functional zones of the three-dimensional facial feature network model; according to the zone division, arranging a movement control point, and calculating the affect of the control point on the three-dimensional facial feature model movement; by driving the movement of the control point, driving the movement of the three-dimensional facial feature network model; and simulating real facial movement. The method can overcome the defect of the prior art and deforms the three-dimensional facial model according to various expression requirements to ensure that the three-dimensional face shows the expression animation with strong sense of reality.

Description

technical field [0001] The invention relates to the technical field of three-dimensional animation, in particular to a control method for three-dimensional human face animation. Background technique [0002] The pioneering work of 3D facial expression animation technology was done by Parke in the 1970s. Due to the strong application and research value of realistic face modeling and animation technology, outstanding researchers all over the world Continuously adding to this research field, the 3D face modeling and animation technology has been significantly developed. However, due to the complexity of the face structure and the richness of facial expressions, the 3D facial expression animation virtual scenes currently studied are either Relatively rudimentary, its sense of reality, credibility, and richness are poor; or it has a strong sense of reality but a huge amount of calculation, which cannot be real-time. The animation method techniques adopted in the prior art are as...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T15/00G06T15/70G06T17/00
Inventor 章毅王平安郑伯川吕建成张蕾彭德中于佳丽张海仙
Owner SICHUAN UNIV
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