Automatic facial expression generation system of vector graphic character by simple user interface

간단한 사용자 인터페이스에 의한 벡터 그래픽 캐릭터의 자동 표정 생성 시스템

  • 박태희 (동명대학교 메카트로닉스공학과) ;
  • 김재호 (부산대학교 공과대학 전자공학과)
  • Published : 2009.08.30

Abstract

This paper proposes an automatic facial expression generation system of vector graphic character using gaussian process model. Proposed method extracts the main feature vectors from twenty-six facial data of character redefined based on Russell's internal emotion state. Also by using new gaussian process model, SGPLVM, we find low-dimensional feature data from extracted high-dimensional feature vectors, and learn probability distribution function (PDF). All parameters of PDF are estimated by maximization the likelihood of learned expression data, and these are used to select wanted facial expressions on two-dimensional space in real time. As a result of simulation, we confirm that proposed facial expression generation tool is working in the small facial expression datasets and can generate various facial expressions without prior knowledge about relation between facial expression and emotion.

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