Exploring reusable frame buffer data for MPEG-4 video decoding

Wei Cheng Lin, Chung Ho Chen

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

Abstract

This paper presents a novel approach that avoids unnecessary frame buffer accesses by exploring reusable frame buffer data for MPEG-4 simple profile video decoders. In an MPEG decoder, each decoded macroblock is stored in the frame buffer for future reference and video display. If a newly decoded macroblock overwrites the predecessor that is exactly the same, then the old data stored in the frame buffer are reusable. Frame buffer accesses of this kind become unnecessary. We propose a design that greatly reduces the number of such unnecessary memory accesses through the detection and management of the reusable data in the frame buffers. The experimental results show that the proposed scheme achieves as much as 53% (28% on the average) saving in frame buffer accesses, without any sacrifice of the image quality and with only a negligible hardware overhead.

Original languageEnglish
Title of host publicationISCAS 2006
Subtitle of host publication2006 IEEE International Symposium on Circuits and Systems, Proceedings
Pages469-472
Number of pages4
Publication statusPublished - 2006
EventISCAS 2006: 2006 IEEE International Symposium on Circuits and Systems - Kos, Greece
Duration: 2006 May 212006 May 24

Publication series

NameProceedings - IEEE International Symposium on Circuits and Systems
ISSN (Print)0271-4310

Other

OtherISCAS 2006: 2006 IEEE International Symposium on Circuits and Systems
Country/TerritoryGreece
CityKos
Period06-05-2106-05-24

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

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