Title :
Compression of functions defined on surfaces of 3D objects
Author :
Kolarav, K. ; Lynch, William
Author_Institution :
Interval Res. Corp., Palo Alto, CA, USA
Abstract :
We present a technique to compress scalar functions defined on 2-manifolds. Our approach combines discrete wavelet transforms with zerotree compression, building on ideas from three previous developments: the lifting scheme, spherical wavelets, and embedded zerotree coding methods. Applications lie in the efficient storage and rapid transmission of complex data sets. Typical data sets are Earth topography, satellite images, and surface parametrizations. Our contribution is the novel combination and application of these techniques to general 2-manifolds
Keywords :
data compression; quantisation (signal); transform coding; trees (mathematics); wavelet transforms; 2-manifolds; 3D object surfaces; Earth topography; complex data sets storage; complex data sets transmission; discrete wavelet transforms; embedded zerotree coding methods; lifting scheme; quantisation; satellite images; scalar functions compression; spherical wavelets; surface parametrizations; zerotree compression; Data compression; Discrete wavelet transforms; Earth; Image coding; Milling machines; Satellites; Surface topography; Wavelet coefficients; Wavelet domain; Wavelet transforms;
Conference_Titel :
Data Compression Conference, 1997. DCC '97. Proceedings
Conference_Location :
Snowbird, UT
Print_ISBN :
0-8186-7761-9
DOI :
10.1109/DCC.1997.582051
