Colorimetric Topography of Atherosclerotic Lesions by Television Image Processing

Abstract

A measurement technique has been developed to quantify the degree and location of sudanophilic lesions in necropsy specimens. Transparencies of longitudinally opened arterial specimens are digitized by television image processing to discrete values of location and luminance. The image is photographically partitioned to increase location information. Binary maps are produced by thresholding the image at several luminance levels of a preprocessed hue. Thus, only the preprocessed hue is available for luminance thresholding. By means of a standard transformation to suppress biological variation, the binary maps of numerous specimen images are overlaid to produce statistical contour maps whose topography represents the level of Sudan IV strain saturation. The accuracy and precision of this technique are far superior to previous methods.

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Document Details

Document Type
Technical Report
Publication Date
Jun 15, 1979
Accession Number
ADA072631

Entities

People

  • Daniel R. Shook
  • J. Fredrick Cornhill
  • Robert M. Nerem

Organizations

  • Ohio State University

Tags

Communities of Interest

  • Air Platforms
  • Biomedical
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Accuracy
  • Arteries
  • Artificial Intelligence
  • Cameras
  • Computer Programs
  • Coordinate Systems
  • Grids
  • Image Processing
  • Light Sources
  • Measurement
  • Medical Personnel
  • Photographs
  • Photography
  • Plastic Explosives
  • Reflectance
  • Statistical Analysis
  • Three Dimensional

Readers

  • Computer Vision.
  • Toxicology/Environmental Toxicology