전기학회논문지 (The Transactions of The Korean Institute of Electrical Engineers)

  • 제57권6호
  • /
  • Pages.1069-1074
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  • 2008
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  • 1975-8359(pISSN)
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  • 2287-4364(eISSN)
대한전기학회 (The Korean Institute of Electrical Engineers)
권호 표지

영상 압축 응용분야를 위한 DCT 아키텍처 개발

An Efficient OCT Architecture for Image Compression Applications

  • 발행 : 2008.06.01
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초록

This paper presents an efficient architecture for $2^n$-point DCT algorithm. The proposed approach makes use of the fact that, in most DCT applications, the scaling operation in the DCT unit can be eliminated and combined with the scaling operation in the quantizer unit. This important property is efficiently exploited with the CORDIC(COordinate Rotation DIgital Computer) algorithm to produce a regular architecture suitable for VLSI implementation. Although there have been several attempts to exploit CORDIC algorithm in developing DCT architectures, the proposed approach provides the most efficient way for scaled DCT applications by completely eliminating the scale factor compensation.

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참고문헌

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