Method and apparatus for generating moving characters

G - Physics – 06 – T

Patent

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G06T 15/70 (2006.01)

Patent

CA 2201843

An avatar is generated by i) providing: a) a three-dimensional representation (2) of the structure of the character, the structure representation changing in real time to represent movement of the character, b) a three-dimensional representation of the surface (1) of the character which is mapped onto said structure representation, and c) a two-dimensional representation of frequently changing portions of said surface, eg the portions used to generate facial expressions and ii) combining said representations a), b) and c) to generate a combined representation of the moving character. Because the frequently changing portions are represented only two-dimensionally, less processing power and ROM is needed to display the avatar.

Production d'un avatar i) en fournissant : a) une représentation tridimensionnelle (2) de la structure du caractère, celle-ci se modifiant en temps réel pour représenter le mouvement du caractère, b) une représentation tridimensionnelle de la surface (1) du caractère qui est mise en correspondance avec ladite représentation de structure, et c) une représentation bidimensionnelle de parties de ladite surface qui changent souvent, par exemple les parties utilisées pour produire des expressions faciales et ii) en combinant lesdites représentations a), b) et c) pour produire une représentation combinée du caractère mobile. Comme les parties qui changent souvent sont représentées seulement en deux dimensions, il faut moins de puissance de traitement et de ROM pour afficher l'avatar.

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