DocumentCode :
1742206
Title :
X-ray volume rendering by hierarchical wavelet splatting
Author :
Westenberg, Michel A. ; Roerdink, Jos B T M
Author_Institution :
Dept. of Math. & Comput. Sci., Groningen Univ., Netherlands
Volume :
3
fYear :
2000
fDate :
2000
Firstpage :
159
Abstract :
This paper is concerned with X-ray volume visualization by means of wavelet splatting, a wavelet-based extension to splatting. Wavelet splatting allows multiresolution visualization of volume data. During user interaction, only low resolution images are computed. When interaction ceases, the image is refined incrementally. We discuss a particular implementation of wavelet splatting which was proposed previously, and show that certain rendering artefacts appear in the low resolution images, due to the particular ordering of the wavelet coefficients. We propose a new variant that uses a different ordering, and computes low resolution images based on the wavelet approximation coefficients only. This variant does not suffer from artefacts, and is faster by a factor of two to three
Keywords :
X-ray imaging; image processing; rendering (computer graphics); wavelet transforms; X-ray volume rendering; X-ray volume visualization; hierarchical wavelet splatting; image refinement; low resolution images; multiresolution visualization; rendering artefacts; user interaction; wavelet approximation coefficients; Computer vision; Data visualization; Image coding; Image reconstruction; Image resolution; Mathematics; Medical services; Rendering (computer graphics); Wavelet coefficients; X-ray imaging;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Pattern Recognition, 2000. Proceedings. 15th International Conference on
Conference_Location :
Barcelona
ISSN :
1051-4651
Print_ISBN :
0-7695-0750-6
Type :
conf
DOI :
10.1109/ICPR.2000.903509
Filename :
903509
Link To Document :
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