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X-ray image compression using run length coding

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Abstract

The recent availability of a special-purpose IC implementing the standard CCITT run length coder/decoder has made it possible for distortion free image compression to be done economically and quickly with a personal computer plug-in circuit card. Although the code table implemented is designed for bit-mapped document images at one bit per pixel, an experiment has been undertaken to investigate its role in compressing multiple bit per pixel images such as radiographs. Representative x-ray images of various body parts are processed; the average compression ratio and standard deviation is 2.37 and 0.28, respectively, for CCITT group 4 compression, and 2.21 and 0.29, for CCITT group 3 compression.

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Authors and Affiliations

  1. From the Lister Hill National Center for Biomedical Communications, National Library of Medicine, 20894, Bethesda, Maryland

    John P. Cookson & George R. Thoma

Authors
  1. John P. Cookson
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  2. George R. Thoma
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Cookson, J.P., Thoma, G.R. X-ray image compression using run length coding. J Med Syst 12, 201–209 (1988). https://doi.org/10.1007/BF00999500

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  • DOI: https://doi.org/10.1007/BF00999500

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