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An Efficient Multiplierless Transform algorithm for Video Coding
Geetha.K.S, Pushpa.M.K, M.Uttarakumari, S.Sethu Selvi
Pages - 469 - 478     |    Revised - 01-09-2011     |    Published - 05-10-2011
Volume - 5   Issue - 4    |    Publication Date - September / October 2011  Table of Contents
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KEYWORDS
Ramanujan Ordered Number DCT, Multiplierless DCT, Video Coding
ABSTRACT
This paper presents an efficient algorithm to accelerate software video encoders/decoders by reducing the number of arithmetic operations for Discrete Cosine Transform (DCT). A multiplierless Ramanujan Ordered Number DCT (RDCT) is presented which computes the coefficients using shifts and addition operations only. The reduction in computational complexity has improved the performance of the video codec by almost 58% compared with the commonly used integer DCT. The results show that significant computation reduction can be achieved with negligible average peak signal-to-noise ratio (PSNR) degradation. The average structural similarity index matrix (SSIM) also ensures that the degradation due to the approximation is minimal.
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Associate Professor Geetha.K.S
R.V.College of Engineering - India
geethakomandur@gmail.com
Mr. Pushpa.M.K
M.S.Ramaiah Institute of Technology - India
Mr. M.Uttarakumari
- India
Mr. S.Sethu Selvi
- India