Bit allocation for Spatio-temporal Wavelet Coding of Animated Semi-regular Meshes

Aymen Kammoun (1) , Frédéric Payan (1) , Marc Antonini (1)

1 Laboratoire d'Informatique, Signaux, et Systèmes de Sophia-Antipolis (I3S) / Equipe IMAGES-CREATIVE

In this paper, we propose a compression scheme for animated semi-regular meshes. This scheme includes a spatio-temporal wavelet filtering to exploit the coherence both in time and space. In order to optimize the quantization of both spatial and temporal wavelet coefficients, the proposed compression scheme also includes a model-based bit allocation. The experimental results show that this approach significantly improves the compression performances, when comparing with previous similar approaches.

Mots clés: 3D animations; Animated meshes; Spatio-temporal decomposition; Wavelet filtering; Semi-regular meshes; Bit Allocation; Coding; Compression

Domaines: Traitement du signal et de l'image [eess.SP]; Traitement du signal et de l'image [eess.SP]

Aymen Kammoun, Frédéric Payan, Marc Antonini. Bit allocation for Spatio-temporal Wavelet Coding of Animated Semi-regular Meshes. International MultiMedia Modeling Conference (MMM), Jan 2009, France. ⟨hal-00369513⟩