Ali Bilgin,
George Zweig,
and Michael W. Marcellin
A. Bilgin (bilgin@ece.arizona.edu) and M. W. Marcellin are with the Department of Electrical and Computer Engineering, University of Arizona, Tucson, Arizona 85721.
G. Zweig is with the Theory Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545.
Ali Bilgin, George Zweig, and Michael W. Marcellin, "Three-dimensional image compression with integer wavelet transforms," Appl. Opt. 39, 1799-1814 (2000)
A three-dimensional (3-D) image-compression algorithm based on
integer wavelet transforms and zerotree coding is presented. The
embedded coding of zerotrees of wavelet coefficients (EZW)
algorithm is extended to three dimensions, and context-based adaptive
arithmetic coding is used to improve its performance. The resultant
algorithm, 3-D CB-EZW, efficiently encodes 3-D image data by the
exploitation of the dependencies in all dimensions, while enabling
lossy and lossless decompression from the same bit stream. Compared
with the best available two-dimensional lossless compression
techniques, the 3-D CB-EZW algorithm produced averages of 22%, 25%,
and 20% decreases in compressed file sizes for computed tomography,
magnetic resonance, and Airborne Visible Infrared Imaging Spectrometer
images, respectively. The progressive performance of the algorithm
is also compared with other lossy progressive-coding
algorithms.
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