Model-based Bit Allocation for Normal Mesh Compression

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 powerful bit allocation that optimizes the quantization of the normal mesh geometry. This bit allocation aims to minimize the surface-to-surface distance between the original irregular mesh and the quantized normal one, according to a target bitrate. Moreover, to provide a fast bit allocation, we approximate this surface-to-surface distance with a simple criterion depending on the wavelet coefficient distributions, and we use theoretical models. This provides a fast and low-complex model-based bit allocation yielding results better than the recent state-of-the-art methods.

Mots clés: model based; semi-regular meshes; meshes; compression; coding; quantization; bit allocation; hausdorff distance

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

Frédéric Payan, Marc Antonini. Model-based Bit Allocation for Normal Mesh Compression. IEEE international workshop on MultiMedia Signal Processing (MMSP), Sep 2004, Italy. pp.327-330. ⟨hal-00369525⟩