Facial expression estimation device, facial expression estimation method, and facial expression estimation program

摘要

PPROBLEM TO BE SOLVED: To provide a face expression estimating program for automatically estimating the expression change of the face shape of an unknown figure. PSOLUTION: A face expression estimating program makes a computer execute steps (S200, S202 and S204) to decide a first set of synthetic coefficients approximating three-dimensional face shape data obtained by converting inputted three-dimensional measurement face shape data corresponding to the predetermined expression of a figure being the target of estimation into the same mesh topology by the linear synthesis of primary components, a step (S206) to retrieve at least one similar face candidate whose distance with the first set of synthetic coefficients is within a predetermined range from a plurality of second sets of synthetic coefficients corresponding to the predetermined expression in a three-dimensional face shape database, a step (S208) to obtain a result by multiplying a difference between the second set of linear synthetic coefficients corresponding to the predetermined expression and that corresponding to the other expression by weighting factors decided based on the distance and a step (S210) to add the result to the first set of synthetic coefficients, and to estimate the synthetic coefficients corresponding to the other expression of the figure being the target of estimation. PCOPYRIGHT: (C)2005,JPO&NCIPI