BIOMEDICAL IMAGING GROUP (BIG)
Laboratoire d'imagerie biomédicale (LIB)

Wavelet Projections for Volume Rendering

S. Horbelt, M. Unser, M. Vetterli

Twentieth Annual Conference of the European Association for Computer Graphics (EUROGRAPHICS'99), Milano, Italian Republic, September 7-11, 1999, pp. 56-59.

We extended Gross's method of volume wavelet rendering by computing splats via an orthogonal projection operator. The method decomposes the volume data into a wavelet pyramid representation in the spline domain. The splats of the basis functions are approximated on a multiresolution grid. Using least-squares approximation ensures the smallest possible error for a given sampling step size. The approximation error on the grid is derived as a function of the sampling step h. The choice of the appropriate wavelet space and spatial resolution at each step produces the smallest possible filters. Our approach reduces the number of computations and allows full control of the image quality. 

@INPROCEEDINGS(http://bigwww.epfl.ch/publications/horbelt9901.html,
AUTHOR="Horbelt, S. and Unser, M. and Vetterli, M.",
TITLE="Wavelet Projections for Volume Rendering",
BOOKTITLE="Twentieth Annual Conference of the European Association
	for Computer Graphics ({EUROGRAPHICS'99})",
YEAR="1999",
editor="",
volume="",
series="",
pages="56--59",
address="Milano, Italian Republic",
month="September 7-11,",
organization="",
publisher="",
note="")
© 1999 EUROGRAPHICS. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from EUROGRAPHICS. This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder.