Method and apparatus for changing lip shape and obtaining...

G - Physics – 06 – T

Patent

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G06T 13/00 (2011.01)

Patent

CA 2744347

The present invention discloses a method and apparatus for changing lip shape and obtaining a lip animation in a voice-driven animation, and relate to computer technologies. The method for changing lip shape includes: obtaining audio signals and obtaining motion extent proportion of lip shape according to characteristics of the audio signals; obtaining an original lip shape model inputted by a user and generating a motion extent value of the lip shape according to the original lip shape model and the obtained motion extent proportion of the lip shape; generating a lip shape grid model set according to the obtained motion extent value of the lip shape and a preconfigured lip pronunciation model library. The method for changing lip shape in a voice-driven animation includes an obtaining module, a first generating module and a second generating module. The solutions provided by the present invention have a simple algorithm and low cost.

L'invention concerne un procédé vocal entraînant la modification de l'expression labiale dans une animation, ainsi qu'un procédé pour obtenir une animation labiale, ces procédés appartenant au domaine informatique. Le procédé vocal entraînant la modification de l'expression labiale dans une animation comprend : l'acquisition d'un signal audio, et l'acquisition de l'échelle d'amplitude de mouvement de l'expression labiale selon les caractères du signal audio; l'acquisition du modèle original de l'expression labiale et la génération de la valeur d'amplitude de mouvement de l'expression labiale, selon le modèle original de l'expression labiale et l'échelle d'amplitude du mouvement de l'expression labiale; et la génération d'un ensemble de modèle de quadrillage de l'expression labiale selon une base de données du modèle de prononciation labiale préétabli. Le dispositif vocal entraînant la modification de l'expression labiale comprend : un module d'acquisition, un premier module de génération, et un second module de génération. L'invention concerne également un dispositif et un procédé pour obtenir l'animation labiale. La solution technique proposée par l'invention se compose d'algorithme simple et est peu coûteuse.

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