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Proceedings Paper

Fixed-point B.G. Lee IDCT without multiplication
Author(s): P. P. Zhu; J. G. Liu; S. K. Dai
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Paper Abstract

An improved modified approach to compute the inverse discrete cosine transform (IDCT) is proposed based on B. G. Lee algorithm. We replace the multiplication operator in original B. G. Lee algorithm with addition and shift operators and looking-up table to implement the fix-point computation. Due to the absence of the multiplication operator, this modified algorithm will take less time to complete the same computation.

Paper Details

Date Published: 14 November 2007
PDF: 8 pages
Proc. SPIE 6789, MIPPR 2007: Medical Imaging, Parallel Processing of Images, and Optimization Techniques, 67891W (14 November 2007); doi: 10.1117/12.749168
Show Author Affiliations
P. P. Zhu, Huazhong Univ. of Science and Technology (China)
J. G. Liu, Huazhong Univ. of Science and Technology (China)
S. K. Dai, Huazhong Univ. of Science and Technology (China)


Published in SPIE Proceedings Vol. 6789:
MIPPR 2007: Medical Imaging, Parallel Processing of Images, and Optimization Techniques

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