NDLI: Unified method for optimization of several video coding algorithms on general-purpose processors

Content Provider	IEEE Xplore Digital Library
Author	Lappalainen, V. Hamalainen, T.D.
Copyright Year	2002
Description	Author affiliation: Nokia Res. Center, Tampere, Finland (Lappalainen, V.)
Abstract	A unified method for optimization of video coding algorithms on general-purpose processors is presented. The method consists of algorithmic, code, compiler, and SIMD (Single Instruction Multiple Data) media Instruction Set Architecture (ISA) optimizations. H.263, H.263+ and emerging H.26L are used as example cases. For the realization of the unified method, the coding elements in all the codecs are analyzed and optimization techniques suitable for one or several of all the coding elements are presented. Results show that a nine-fold improvement can be obtained in H.26L decoding speed in terms of frames per second with video quality equivalent to a non-optimized implementation.
Sponsorship	IEEE Comput. Soc
Starting Page	431
Ending Page	438
File Size	332362
Page Count	8
File Format	PDF
ISBN	0769515061
DOI	10.1109/ITCC.2002.1000428
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2002-04-08
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Optimization methods Video coding Optimizing compilers Instruction sets Video codecs Discrete cosine transforms Video compression Streaming media Laboratories Computer architecture
Content Type	Text
Resource Type	Article

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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
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Unified method for optimization of several video coding algorithms on general-purpose processors