| HAL : hal-00360322, version 1 |
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| ACM Transactions on Graphics 24, 3 (2005) 601--608 |
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| Surface Compression With Geometric Bandelets |
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| Gabriel Peyré 1Stéphane Mallat 2 |
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| (07/2005) |
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| This paper describes the construction of second generation bandelet bases and their application to 3D geometry compression. This new coding scheme is orthogonal and the corresponding basis functions are regular. In our method, surfaces are decomposed in a bandelet basis with a fast bandeletization algorithm that removes the geo- metric redundancy of orthogonal wavelet coefficients. The result- ing transform coding scheme has an error decay that is asymptoti- cally optimal for geometrically regular surfaces. We then use these bandelet bases to perform geometry image and normal map com- pression. Numerical tests show that for complex surfaces bandelets bring an improvement of 1.5dB to 2dB over state of the art com- pression schemes. |
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| 1 : | CEntre de REcherches en MAthématiques de la DEcision (CEREMADE) |
| CNRS : UMR7534 – Université Paris IX - Paris Dauphine | |
| 2 : | Centre de Mathématiques Appliquées (CMAP) |
| CNRS : UMR7641 – Université de Versailles Saint-Quentin-en-Yvelines – Polytechnique - X | |
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| Domaine | : | Informatique/Traitement du signal et de l'image Sciences de l'ingénieur/Traitement du signal et de l'image |
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| Bandelets – discrete multiscale geometry – geometry image – normal map – compression |
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| Liste des fichiers attachés à ce document : | |||||
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| hal-00360322, version 1 | |
| http://hal.archives-ouvertes.fr/hal-00360322 | |
| oai:hal.archives-ouvertes.fr:hal-00360322 | |
| Contributeur : Gabriel Peyré | |
| Soumis le : Mercredi 11 Février 2009, 00:45:24 | |
| Dernière modification le : Mercredi 11 Février 2009, 11:05:03 | |