Title :
Fast data-parallel rotation of digital volume images
Author :
Chow, C. ; Ng, W.Y.
Author_Institution :
Dept. of Inf. Eng., Chinese Univ. of Hong Kong, Shatin, Hong Kong
Abstract :
Affine transformation of volume, in particular rotation, is important in visualisation. The authors present an approach to data-parallel rotation which ensures an efficient mapping from the object space to a rotated viewing space. While the popular rotation-by-shear approach involves multiple resampling, only one resampling operation is used in the algorithm which ensures faster speed and less degradation. Also, a fast rendering algorithm is proposed for the rendering of volume image. The authors implement their algorithm on a massive parallel SIMD computer Decmpp 1200/sx to show its interactivity and quality advantages
Keywords :
data visualisation; image reconstruction; parallel algorithms; rendering (computer graphics); affine transformation; digital volume images; fast data-parallel rotation; interactivity; mapping; massive parallel SIMD computer Decmpp 1200; object space; quality; rendering algorithm; resampling operation; viewing space; visualisation; volume; volume image; Algorithm design and analysis; Concurrent computing; Data analysis; Data visualization; Degradation; Laboratories; Parallel processing; Pixel; Rendering (computer graphics); Sampling methods;
Conference_Titel :
Speech, Image Processing and Neural Networks, 1994. Proceedings, ISSIPNN '94., 1994 International Symposium on
Print_ISBN :
0-7803-1865-X
DOI :
10.1109/SIPNN.1994.344800
