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Abstract
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Article Information:
Color Image and Video Compression Based on Direction Adaptive Partitioned Discrete Wavelet Transform
K. Dinesh, S. Saravana Kumar and P. Daniel
Corresponding Author: K. Dinesh
Submitted: March 23, 2012
Accepted: April 30, 2012
Published: December 15, 2012 |
Abstract:
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The main objective of this study is to use the Direction-Adaptive Partitioned Block Transform
(DA-PBT) for compressing the color images and videos. It is same as the direction-adaptive block
transform but it also have an additional direction-adaptive block partitioning to improve energy
concentration. The selection of a directional mode determines the transform direction that provides
directional basis functions. It reduces complexity and more efficient coefficient ordering for entropy
coding. For image coding, the DA-PBT significantly outperforms the directional DCT. As a block
transform, the DA-PBT can be directly incorporated into the prediction-based video coding standards to
work with the block-based intra prediction as well as the block-based motion-compensated interframe
prediction. The performance of the DA-PBT is compared with the 2D-DCT by using the Peak-Signal-to-
Noise Ratio (PSNR) and Compression Ratio (CR). The experimental results shows that the DA-PBT
performs well than the 2D-DCT.
Key words: Compression techniques , discrete wavelet transforms, video coding standards, , , ,
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Cite this Reference:
K. Dinesh, S. Saravana Kumar and P. Daniel, . Color Image and Video Compression Based on Direction Adaptive Partitioned Discrete Wavelet Transform. Research Journal of Applied Sciences, Engineering and Technology, (24): 5515-5518.
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ISSN (Online): 2040-7467
ISSN (Print): 2040-7459 |
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