Surface Compression With Geometric Bandelets
Peyré, Gabriel; Mallat, Stéphane (2005), Surface Compression With Geometric Bandelets, ACM Transactions on Graphics, 24, 3, p. 601--608. http://doi.acm.org/10.1145/1073204.1073236
TypeArticle accepté pour publication ou publié
External document linkhttp://hal.archives-ouvertes.fr/hal-00360322/en/
Journal nameACM Transactions on Graphics
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Abstract (EN)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.
Subjects / KeywordsBandelets ; discrete multiscale geometry ; geometry image ; normal map ; compression
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