Dynamic bit-width adaptation in DCT: Image quality versus computation energy trade-off

Park Jongsun, Hwan Choi Jung, Kaushik Roy

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

7 Citations (Scopus)

Abstract

We present a dynamic bit-width adaptation scheme in DCT applications for efficient trade-off between image quality and computation energy. Based on sensitivity differences of 64 DCT coefficients, various operand bit-widths are used for different frequency components to reduce computation energy in DCT operation. Numerical results show that our DCT architecture can achieve power savings ranging from 36 % to 75% compared to normal operation.

Original languageEnglish
Title of host publicationProceedings - Design, Automation and Test in Europe, DATE'06
Publication statusPublished - 2006
Externally publishedYes
EventDesign, Automation and Test in Europe, DATE'06 - Munich, Germany
Duration: 2006 Mar 62006 Mar 10

Publication series

NameProceedings -Design, Automation and Test in Europe, DATE
Volume1
ISSN (Print)1530-1591

Other

OtherDesign, Automation and Test in Europe, DATE'06
CountryGermany
CityMunich
Period06/3/606/3/10

ASJC Scopus subject areas

  • Engineering(all)

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