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An Image Coding Approach Using Wavelet-Based Adaptive Contourlet Transform

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4 Author(s)
Guoan Yang ; Inst. of Artificial Intell. & Robot., Xi'an Jiaotong Univ., Xi'an, China ; Zhiqiang Tian ; Chongyuan Bi ; Yuzhen Bi

In this paper, we propose an image coding approach using wavelet-based adaptive contourlet transform. The approach adopts the wavelet transform to implement subband decomposition to replace Laplace pyramid decomposition in contourlet transform, and thus the redundancy caused by the Laplace pyramid decomposition can be eliminated. Moreover, it chooses the directional filter banks as a key technique, combine SPIHT code, and realizes image compression coding called wavelet-based adaptive contourlet transform. The experiment results show that our approach is comparatively more effective than wavelet, contourlet and wavelet-based contourlet transform in terms of accurately capturing the characteristics of the texture and the edge of the image.

Published in:

Computational Sciences and Optimization, 2009. CSO 2009. International Joint Conference on  (Volume:1 )

Date of Conference:

24-26 April 2009