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Proceedings Paper

Multiplier-less approximation of the DCT/IDCT with low complexity and high accuracy
Author(s): Cixun Zhang; Lu Yu
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Paper Abstract

This paper presents a straightforward multiplier-less approximation of the forward and inverse Discrete Cosine Transform (DCT) with low complexity and high accuracy. The implementation, design methodology, complexity and performance tradeoffs are discussed. Particular, the proposed IDCT implementations, in spite of simplicity, comply with and can reach far beyond the MPEG IDCT accuracy specification ISO/IEC 23002-1, and also reduce drift favorably compared to other existing IDCT implementations.

Paper Details

Date Published: 8 October 2007
PDF: 12 pages
Proc. SPIE 6696, Applications of Digital Image Processing XXX, 669615 (8 October 2007); doi: 10.1117/12.740224
Show Author Affiliations
Cixun Zhang, Zhejiang Univ. (Finland)
Lu Yu, Zhejiang Univ. (China)


Published in SPIE Proceedings Vol. 6696:
Applications of Digital Image Processing XXX
Andrew G. Tescher, Editor(s)

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