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A Pinned Sine Transform Image Coder

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2 Author(s)
A. Meiri ; RAFEAL, Haifa, Israel and the Dept. of Electr. Eng., Technion-Israel Institute of Technology, Haifa, Israel ; E. Yudilevich

The pinned sine transform (PST) coder described is a practical approximation to the pinned KLT coder. The image is partitioned into two fields: a boundary field, which depends only on the coded block boundaries, and a pinned field, which vanishes at the boundaries and is subsequently sine transformed and compressed. The reconstructed image is continuous across the block boundaries and "blocking effects" are hardly visible. Simulation results are given for fixed and adaptive compression schemes with fair image quality at low bit rates down to 0.3 bits/pel.

Published in:

IEEE Transactions on Communications  (Volume:29 ,  Issue: 12 )