Accession Number:

ADA248167

Title:

Distributed Ray Casting for High-Speed Volume Rendering

Descriptive Note:

Master's thesis

Corporate Author:

AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH

Personal Author(s):

Report Date:

1992-01-01

Pagination or Media Count:

62.0

Abstract:

The volume rendering technique known as ray casting or ray tracing is notoriously slow for large volume sizes, yet provides superior images. A technique is needed to accelerate ray tracing volumes without depending on special purpose or parallel computers. The realization and improvements in distributed computing over the past two decades has motivated its use in this work. This thesis explores a technique to speedup ray casting by distributed programming. The work investigates the possibility of dividing the volume among general purpose workstations and casting rays using Levoys front-to-back algorithm through each subvolume independently. The final step being the composition of all subvolume rendered images. Results indicate a 75 percent savings in rendering time by distributed processing over eight processors versus a single processor.

Subject Categories:

  • Computer Systems
  • Acoustics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE