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Method for building three-dimensional virtual eye motion model with rich emotional expression capability

A three-dimensional virtual and motion model technology, applied in animation production, image data processing, instruments, etc., to achieve the effect of enhancing realistic appearance and expressiveness

Inactive Publication Date: 2013-09-04
UNIV OF SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Some studies have addressed how the eyes and eyelids move during normal emotional states, but how these movements reflect emotions remains a question for further research

Method used

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  • Method for building three-dimensional virtual eye motion model with rich emotional expression capability
  • Method for building three-dimensional virtual eye motion model with rich emotional expression capability
  • Method for building three-dimensional virtual eye motion model with rich emotional expression capability

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Embodiment Construction

[0061] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0062] The object of the present invention is to make the virtual character more capable of expressing emotions through the movement of eyeballs. figure 1 Shows the overall framework of the present invention. Our eye movement model involves the eyeball and eyelids. The movement of the eye part involves saccades, and the specific parameters include the amplitude, direction and duration of saccades. Movements of the eyelid part involve eyelid saccades and blinks, and specific parameters include amplitude, duration, eyelid position, and blink rate. Our model reflects realistic eye movement by giving the eyes these parameters, making it look very lifelike.

[0063] Our eye movement model can be divided into two parts: the eye model under neutral emotion (no emotion change) and the eye model under emotion change. The eye model under neutral emot...

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Abstract

The invention provides a method for building a three-dimensional virtual eye motion model with a rich emotional expression capability, which relates to the technical field of man-computer interaction, human facial animation, emotional synthesizing and expressing and the like. The eye motion plays an important role in the non-linguistic communication and emotional expression of virtual human in the fields, so that a vivid three-dimensional eye motion model is built. The virtual eye motion model is structured by two parts: a first part is an eye motion model in neutral emotion (no emotional change), and a second part is an eye motion model under emotional changes. Moreover, the eye motion involves eyeball motion and blepharal motion, and a detailed formula is provided for describing eye motion parameters such as eye scanning width and blinking frequency. The vivid eye model can be structured according to the eye motion description, and accordingly, the vivid appearance and expression capability of the virtual human can be well enhanced.

Description

technical field [0001] The present invention relates to the technical fields of human-computer interaction, facial animation, emotion synthesis and expression, etc., and specifically relates to a method for establishing a three-dimensional virtual eye movement model rich in emotional expression ability, which is a virtual three-dimensional eye movement through computer technology, with To achieve the purpose of promoting emotional expression and communication of virtual people. The invention can be widely used in related fields such as human-computer interaction and facial animation. Background technique [0002] Since the 1970s, the research on facial animation and virtual human has received extensive attention. More and more people use virtual human beings in some virtual fields, such as multimedia teaching, games and other fields. Emotional expression ability has always been one of the very important characteristics of virtual humans, and many researchers have done a lo...

Claims

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Application Information

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IPC IPC(8): G06T13/20
Inventor 汪增福江辰於俊
Owner UNIV OF SCI & TECH OF CHINA
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