NDLI: Volume rendering by wavefront architecture

Content Provider	IEEE Xplore Digital Library
Author	Lin, S.-H. Kung, S.
Copyright Year	1993
Description	Author affiliation: Dept. of Electr. Eng., Princeton Univ., NJ, USA (Lin, S.-H.; Kung, S.)
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.<>
Starting Page	214
Ending Page	225
File Size	512992
Page Count	12
File Format	PDF
ISBN	0818634928
ISSN	10636862
DOI	10.1109/ASAP.1993.397146
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1993-10-25
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Casting Computer architecture Pixel Equations Displays Pipeline processing Optical surface waves Computational modeling Engines Medical services
Content Type	Text
Resource Type	Article
Subject	Computer Networks and Communications Hardware and Architecture

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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