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Proceedings Paper

Glandular tissue contrast in CCD-digitized mammograms
Author(s): Carolyn Kimme-Smith; Siamik Dardashti; Lawrence W. Bassett M.D.
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Paper Abstract

Contrast resolution in CCD digitized mammograms is difficult because of storage requirements for 12 bit gray level resolution and because of the logarithmic amplification needed for optical densities above 1.6. By assigning gray level ranges to specific optical density ranges based on a region of interest selection during a pre-digitization scan, contrast for lower optical densities can be preserved. Comparison of the equivalence of film and digital images was confirmed by 6 radiologists reading 46 biopsy proven films (12 cases). Diagnostic performance was also tested and showed similar error rates (17%) for both modalities.

Paper Details

Date Published: 29 July 1993
PDF: 6 pages
Proc. SPIE 1905, Biomedical Image Processing and Biomedical Visualization, (29 July 1993); doi: 10.1117/12.148660
Show Author Affiliations
Carolyn Kimme-Smith, UCLA School of Medicine (United States)
Siamik Dardashti, UCLA School of Medicine (United States)
Lawrence W. Bassett M.D., UCLA School of Medicine (United States)

Published in SPIE Proceedings Vol. 1905:
Biomedical Image Processing and Biomedical Visualization
Raj S. Acharya; Dmitry B. Goldgof, Editor(s)

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