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

Park Jongsun; Hwan Choi Jung; Kaushik Roy

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 proceeding › Conference contribution

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 language	English
Title of host publication	Proceedings - Design, Automation and Test in Europe, DATE'06
Publication status	Published - 2006
Externally published	Yes
Event	Design, Automation and Test in Europe, DATE'06 - Munich, Germany Duration: 2006 Mar 6 → 2006 Mar 10

Publication series

Name	Proceedings -Design, Automation and Test in Europe, DATE
Volume	1
ISSN (Print)	1530-1591

Other

Other	Design, Automation and Test in Europe, DATE'06
Country	Germany
City	Munich
Period	06/3/6 → 06/3/10

ASJC Scopus subject areas

Engineering(all)

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Cite this

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title = "Dynamic bit-width adaptation in DCT: Image quality versus computation energy trade-off",

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.",

author = "Park Jongsun and Jung, {Hwan Choi} and Kaushik Roy",

year = "2006",

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AB - 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.

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M3 - Conference contribution

AN - SCOPUS:34047145040

SN - 3981080114

SN - 9783981080117

T3 - Proceedings -Design, Automation and Test in Europe, DATE

BT - Proceedings - Design, Automation and Test in Europe, DATE'06

Y2 - 6 March 2006 through 10 March 2006

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