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System and method for tracking facial muscle and eye motion for computer graphics animation

A production system and motion tracking technology, applied in animation production, computing, 3D image processing, etc.

Inactive Publication Date: 2007-11-07
SONY PICTURES ENTERTAINMENT JAPAN +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This is especially problematic in situations where the person is constantly changing the orientation of the face relative to the detection device

Method used

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  • System and method for tracking facial muscle and eye motion for computer graphics animation
  • System and method for tracking facial muscle and eye motion for computer graphics animation
  • System and method for tracking facial muscle and eye motion for computer graphics animation

Examples

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Embodiment Construction

[0024] As described further below, the present invention meets the need for a motion tracking system capable of faithfully capturing subtle facial and eye movements of a performer without the use of a camera. In the detailed description below, like element numbers are used to describe like elements illustrated in one or more figures.

[0025] Referring first to FIG. 1 , a block diagram illustrates a motion tracking system 100 in accordance with an embodiment of the present invention. The motion tracking system 100 includes a motion tracking processor 108 configured to communicate with a plurality of facial muscle electrode pairs and a plurality of eye movement electrode pairs through a suitable electrode interface 112 . The motion tracking processor 108 may also include a programmable computer having a data storage device 106 configured to store associated data files. As is known in the art, a network may be used to couple one or more computer workstations to the motion track...

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Abstract

The invention relates to a motion tracking system enables faithful capture of subtle facial and eye motion using a surface electromyography (EMG) detection method to detect muscle movements and an electrooculogram (EOG) detection method to detect eye movements. Signals corresponding to the detected muscle and eye movements are used to control an animated character to exhibit the same movements performed by a performer. The motion tracking electrode is affixed to a skin surface of a performer at plural locations corresponding to respective muscles, and a processor operatively coupled to the plurality of pairs of EMG and EOG electrodes. The programming instructions further provide processing of the EOG data and mapping of the processed EOG data onto the animated character. As a result, the animated character will exhibit the same muscle and eye movements as the performer.

Description

[0001] relevant application data [0002] This application for patent claims priority under 35 U.S.C. §119(c) to the following Provisional Patent Application: (a) Serial No. 60 / 616,049, filed October 4, 2004, entitled "System and Method for Capturing Facial and Eye Movements" (SYSTEM AND METHOD FORCAPTURING FACIAL AND EYE MOTION); and (b) Serial No. _____, filed October 1, 2004, entitled "TRACKING OF FACIAL FEATUREMOVEMENTS WITHOUT VISUAL FACE CAPTURE). technical field [0003] The present invention relates to three-dimensional graphics and animation, and more particularly, to a motion tracking system capable of capturing the facial and eye movements of a performer for use in computer graphics animation without the use of cameras. Background technique [0004] Use a motion capture system to capture the movement of real objects and map them onto computer-generated objects. Such systems are often applied in the production of motion pictures and video games to create digital ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T15/70G06T13/40
Inventor M·萨加R·斯科特
Owner SONY PICTURES ENTERTAINMENT JAPAN
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