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Image coding in wavelet transform domain using non-linear quincunx interpolation filtering

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3 Author(s)
Eunsung Lim ; Dept. of Inf. & Telecommun. Eng., Chonbuk Nat. Univ., Chonju, South Korea ; Sijung Chang ; Moon Ho Lee

A method which improve the quality of the reconstructed image obtained from the wavelet transform which is appropriate for the human visual system using non-linear quincunx interpolation filtering is proposed. A straightforward method to extend the 1-D wavelet basis to the 2-D wavelet basis is the separable wavelet transform. Approximation images and detail images are obtained with a multiresolution image representation. Each detail image has horizontal direction edge, vertical direction edge and diagonal direction edge information respectively. Non-linear interpolation filtering of each detail image improve the quality (PSNR) of the reconstructed image by some 1-2 dB

Published in:

Communication Technology Proceedings, 1996. ICCT'96., 1996 International Conference on  (Volume:2 )

Date of Conference:

5-7 May 1996