Virtual human eye emotion expression simulation method

A simulation method and virtual human technology, applied in the field of three-dimensional face animation research and computer vision, can solve the problems of poor controllability of grid points and low realism of simulation results, and achieve simple control, simple mathematical model, and physical meaningful effect

Inactive Publication Date: 2011-07-20
NORTHWESTERN POLYTECHNICAL UNIV
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AI Technical Summary

Problems solved by technology

[0012] In order to overcome the shortcomings of the prior art that the control of grid points is not strong when simulating the closed movement of human eyes, and the simulation results are not very realistic, the prese

Method used

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  • Virtual human eye emotion expression simulation method
  • Virtual human eye emotion expression simulation method
  • Virtual human eye emotion expression simulation method

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Experimental program
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Embodiment Construction

[0030] Method embodiment: this embodiment is based on the appended figure 2 shown in the operating procedure, and based on the attached Figure 5 A simple implementation of .

[0031] Firstly, the real face can be scanned by a 3D laser scanner to obtain the original 3D face grid point model, or the 3D modeling software such as 3DS MAX or MAYA can be used to manually build a 3D model of the face by the designer, or it can be obtained through Poser and other professional human body modeling software, directly export the required human head model from its model library, and get the attached Figure 4 .

[0032] Then, the control points of the human eye part in the original 3D grid model are designed through the computer input device. In order to obtain a finer eye movement simulation effect, according to people's visual and intuitive understanding of the characteristics of human eye closure movement, and referring to the definition of eye FDP control points in the MPEG-4 stan...

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Abstract

The invention discloses a virtual human eye emotion expression simulation method, which comprises the following steps of: firstly, acquiring a three-dimensional human eye mesh model, namely, three-dimensional mesh data; secondly, selecting mesh points at eye areas of the model according to the motion characteristics of eyes as motion control points; and finally, driving the motion of boundary control points by adopting a crank and rocker mechanism model to simulate real eye motion. In the method, the same mathematic model is adopted to realize the repeated motion process of opening and closing the eyes under the condition of continuous time and produce richer eye closing motion reflecting different emotions by regulating parameters such as position relationships among different rods, initial mounting position of a crank and the like. In the method, the mathematic model is simple; and the method is explicit in physical significant, simple to control, easy to implement and high in reality.

Description

technical field [0001] The invention relates to the field of computer vision, in particular to the field of three-dimensional human face animation research. Background technique [0002] Face is one of the important characteristics of everyone, through which we can identify others, observe their mood, understand their health status, etc. In recent years, with the rapid improvement of computing power and the vigorous development of network applications, the research on facial animation has once again become a very active field in computer vision and human-computer interaction. As an important sensory organ of the face and a key emotional carrier, the eyes play an irreplaceable role in transmitting information and expressing emotions, but at the same time, the physiological structure of the eyes is very complicated, and the eye movements are very rich. Reproducing realistic eye movements has always been an important and challenging topic in the study of facial animation. [...

Claims

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Application Information

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IPC IPC(8): G06T13/40
Inventor 黄琪樊养余吕国云齐敏王毅贾蒙
Owner NORTHWESTERN POLYTECHNICAL UNIV
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