Volume rendering by wavefront architecture

S. H. Lin, S. Kung

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

To achieve real time processing for volume rendering, it is necessary to employ parallel processing techniques. Therefore, a ray casting wavefront architecture is proposed. The architecture offers the following advantages. By a special memory organization, the processor array can perform fast rotation along x, y, z axes without incurring costly memory transformation. The projection phase and post-projection phase are assigned to different processors and a significant time-saving can be achieved by the pipelining technique. In the proposed architecture, the projection processors can skip the transparent region and step computation when further computation does not affect pixel values any more, e.g., the rays reach opaque surface. Finally, according to the VHDL simulation result, the speedup of the wavefront architecture over several SIMD designs (including CM2 and the Princeton Engine) is about 200% under normal condition.

Original languageEnglish (US)
Title of host publicationProceedings of International Conference on Application Specific Array Processors, ASAP 1993
EditorsBenjamin Wah, Luigi Dadda
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages214-225
Number of pages12
ISBN (Electronic)0818634928
DOIs
StatePublished - Jan 1 1993
Event1993 International Conference on Application Specific Array Processors, ASAP 1993 - Venice, Italy
Duration: Oct 25 1993Oct 27 1993

Publication series

NameProceedings of the International Conference on Application-Specific Systems, Architectures and Processors
ISSN (Print)1063-6862

Conference

Conference1993 International Conference on Application Specific Array Processors, ASAP 1993
CountryItaly
CityVenice
Period10/25/9310/27/93

All Science Journal Classification (ASJC) codes

  • Hardware and Architecture
  • Computer Networks and Communications

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