1 December 1991 Reversible compression of industrial radiographs using multiresolution decorrelation
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Abstract
An improved method for the reversible compression of industrial radiographs is described. The method uses one of the multiresolution decorrelation techniques, viz., hierarchical interpolation (HINT), to decorrelate a given image. However, instead of encoding the decorrelated image pixels at each resolution level using a memoryless source as in the traditional HINT method, a statistical source model with multiple contexts is employed and the pixels are encoded using the appropriate contextual statistics. Experiments on industrial x-ray images show that the improved method achieves about 19% more compression on the average than the traditional method.
© (1991) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Keshi Chen, Keshi Chen, Tenkasi V. Ramabadran, Tenkasi V. Ramabadran, } "Reversible compression of industrial radiographs using multiresolution decorrelation", Proc. SPIE 1567, Applications of Digital Image Processing XIV, (1 December 1991); doi: 10.1117/12.50834; https://doi.org/10.1117/12.50834
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