| 摘要 |
PURPOSE:To make a smooth transition of a face image deformation, which corresponds to the image while a certain vowel is pronounced, to another face image which corresponds to the image while a different vowel is pronounced. CONSTITUTION:From an input voice signal, the control frequency of a formant frequency, which shows a peak of the spectrum envelope of the input voice signal, is computed, the formant frequency is linear and nonlinear transformed, at least two parameters of the lower jaw data and the lip data are obtained, from these two parameters at least two functions, i.e., a first function which corresponds to a first vowel group and a second function which corresponds to a second vowel group are obtained as the lower jaw opening and the lip opening functions and the shape of a face being displayed is deformed based upon the amount of change of the lower jaw and the lip obtained from these functions. |
