Advertisement

Information Theory and Thermographic Quantification

  • D. P. Page Thomas

Abstract

The electronic display of a thermal image from an infrared camera is comprized of a number of time scans which a computer converts into an array of a number of points (pixels) of different thermal values. For quantification purposes each pixel may be considered to possess three positional characteristics:
  1. 1.

    Location along the horizontal axis (xi)

     
  2. 2.

    Location vertically (yi)

     
  3. 3.

    A thermal location (zi) in a plane directed towards the camera at right angles to the x,y plane.

     

Keywords

Gray Level Thermal Image Arthritic Knee Quantification Purpose Relative Frequency Distribution 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    P. Newman, M. Davison, I. Jackson, W. B. James, The analysis of temperature frequency distributions over the breasts by a computerized thermography system, Acta Therm. 4: 3 (1979).Google Scholar
  2. 2.
    R. S. Salisbury, The distribution of heat over joints and its quantification, in: “Symposium on Image Processing in Thermography,” Proceedings of Anglo-Dutch Thermographie Society 6 (1981).Google Scholar
  3. 3.
    R. S. Salisbury, G. Parr, B. L. Hazleman, D. P. Page Thomas, Heat distribution over joints: the normal and abnormal pattern, in: “Proceedings of 3rd International Congress of Thermology,” Plenum Publishing Corporation, New York (1982).Google Scholar
  4. 4.
    H. Quastler, A primer on information theory, in: “Symposium on Information Theory in Biology,” H. P. Yockey ed., Pergamon Press Inc. New York (1958).Google Scholar
  5. 5.
    R. A. Fisher, On the mathematical foundations of theoretical statistics, Phil. Trans. (A) 222: 309 (1922).ADSCrossRefGoogle Scholar
  6. 6.
    L. Szilard, Uber die entropieverminderung einem thermodynamischen system bei eingriffen intelligeneter wesen, Z. Phys. 53: 840 (1929).ADSMATHCrossRefGoogle Scholar
  7. 7.
    R. V. L. Hartley, Transmission of information, Bell Syst. Tech. J. 7: 535 (1928).Google Scholar
  8. 8.
    N. Wiener, “Cybernetics,” J. Wiley & Sons, New York (1948).Google Scholar
  9. 9.
    C. E. Shannon, A mathematical theory of communication, Bell Syst. Tech. J. 27: 379 and 623 (1948).MathSciNetMATHGoogle Scholar
  10. 10.
    L. Bri Brillouin, “Science and Information Theory,” Academic Press, New York (1956).MATHGoogle Scholar

Copyright information

© Plenum Press, New York 1984

Authors and Affiliations

  • D. P. Page Thomas
    • 1
  1. 1.Rheumatism Research Unit E6Addenbrookes HospitalCambridgeUK

Personalised recommendations