Image reconstruction using a 2D M-channel perfect reconstruction filter bank with an optimized adaptive interpolation Kernel

Authors:
J. Y. Kim;K. J. Kim;S. W. Nam
Affiliations:
Department of Electronics and Computer Engineering, Hanyang University, Seoul, Korea;Department of Electronics and Computer Engineering, Hanyang University, Seoul, Korea;Department of Electronics and Computer Engineering, Hanyang University, Seoul, Korea
Venue:
MUSP'07 Proceedings of the 7th WSEAS International Conference on Multimedia Systems & Signal Processing
Year:
2007

Citing 3
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Abstract

In this paper, we propose an image reconstruction method utilizing an optimized adaptive interpolation kernel along with a 2D M-channel perfect reconstruction filter bank (M-ch PR-FB) structure. In particular, the proposed approach leads to sharper reconstructed images than a direct conversion, still preserving high frequency components of the original image by employing the subband processing of a 2D M-ch PR-FB. Finally, the image quality improved by the proposed approach is demonstrated by comparing with those of the direct conversion methods using the bicubic and adaptive 2nd Newton interpolation kernels.