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An optimal parallel algorithm for volume ray casting

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2 Author(s)
Goel, V. ; Dept. of Comput. Sci., Univ. of Central Florida, Orlando, FL, USA ; Mukherjee, A.

Volume rendering by ray casting is a computationally expensive problem. For interactive volume visualization, rendering has to be done in real time (3D frames/sec). Since the typical 3D dataset size is at least 1283, the use of parallel processing is imperative. We present an O(log n) EREW algorithm for volume rendering using O(n3 ) processors which can be optimized to O(log3 n) time using O(n3/log3 n) processors. We have implemented our algorithm on MasPar MPl200. The implementation results show that a frame from 1233 data size is generated in about 3 seconds using 4096 processors

Published in:

Parallel Processing Symposium, 1995. Proceedings., 9th International

Date of Conference:

25-28 Apr 1995