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Subband image coding using cosine modulated filter banks with perfect reconstruction and linear phase

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4 Author(s)
H. Bolcskei ; INTHFT, Wien Univ. of Technol., Austria ; T. Stranz ; F. Hlawatsch ; R. Sucher

We propose a lossy image coding scheme based on the previously introduced even-stacked cosine modulated filter banks (CMFBs) that allow linear phase filters in all channels. We describe modifications of the JPEG quantization matrix and zig-zag sequence to match the structure of even-stacked CMFBs. We discuss the efficient design of even-stacked CMFBs. The rate-distortion performance and perceptual performance of the proposed transform coder are demonstrated using simulation results

Published in:

Image Processing, 1997. Proceedings., International Conference on  (Volume:2 )

Date of Conference:

26-29 Oct 1997