PROBLEM TO BE SOLVED: To attain proper geometry deformation to any facial model by converting a driving voice signal into readable voice data in a prescribed process, and converting the data into a parameter indicating basic deformation. SOLUTION: A driving voice signal is converted into voice data readable by a machine, and those data are converted into a parameter indicating basic deformation to be applied to a model. As for the conversion of the voice data, an individual voice information item or voice information item group is related with each information item (bism) indicating the corresponding position of the mouth of a speaker. Also, each bism is divided into macroparameter groups for featuring the shape of a mouth and the positions of lips and a jaw, and each macroparameter of the prescribed bism is related with a strength value indicating displacement from a neutral position. Also, the macroparameter is divided into parameters selected from a standard face animation parameter group, and the parameters are related with strength values depending on the strength value of the macroparameter.
VOICE SIGNAL DRIVING ANIMATION METHOD AND DEVICE FOR SYNTHETIC MODEL OF HUMAN FACE