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Proceedings Paper

Parallelism in the decoding of MPEG digital video
Author(s): Karl Wittig
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Paper Abstract

The rate at which MPEG digital video is decoded depends primarily on the resolutions and the pixel rates of the images that are ultimately displayed. A variety of MPEG decoders is currently available for standard-definition video. Higher-resolution video, such as HDTV, requires much higher decoding rates. The processing speeds needed for these high rates may not be attainable in a decoder that uses conventional digital processing and memory technologies without the use of parallel processing. This will continue to be true even after high-speed decoders become available for HDTV resolutions, as there will be other video applications (e.g., virtual reality, scientific, and medical imaging) for which still higher resolutions are needed. Consequently, higher processing speeds will be required, along with parallel processing. The MPEG decoding algorithm, however, was designed to process an entire picture sequentially, and as such is not well-suited for parallel processing implementations. In this paper, the general problem of parallelism in the decoding of MPEG video is considered, and a simple, efficient method of partitioning it into parallel processes is described.

Paper Details

Date Published: 29 December 1999
PDF: 11 pages
Proc. SPIE 3970, Media Processors 2000, (29 December 1999); doi: 10.1117/12.375236
Show Author Affiliations
Karl Wittig, Philips Research (United States)

Published in SPIE Proceedings Vol. 3970:
Media Processors 2000
Sethuraman Panchanathan; V. Michael Bove; Subramania I. Sudharsanan, Editor(s)

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