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Applied Optics

Applied Optics


  • Vol. 20, Iss. 2 — Jan. 15, 1981
  • pp: 312–319

Detection of gratings and small features in speckle imagery

Vijaya N. Korwar and John R. Pierce  »View Author Affiliations

Applied Optics, Vol. 20, Issue 2, pp. 312-319 (1981)

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The extent of picture degradation of speckle, in particular in synthetic aperture radar pictures, has been investigated in the cases where an observer has to detect (a) a small feature immersed in a darker background, and (b) a square wave grating. In each case, a theoretical model is developed for the observer’s detection mechanism, and the probability of correct decision is related to relevant picture parameters such as contrast, looks per pixel, and size. These calculations are verified by psychophysical experiments using computer-simulated pictures. Detectability of gratings as a criterion for characterizing picture quality is shown to be far inferior to feature detectability.

© 1981 Optical Society of America

Original Manuscript: June 24, 1980
Published: January 15, 1981

Vijaya N. Korwar and John R. Pierce, "Detection of gratings and small features in speckle imagery," Appl. Opt. 20, 312-319 (1981)

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  1. J. D. Rigden, E. I. Gordon, Proc. IRE 50, 2367 (1962).
  2. J. W. Goodman, J. Opt. Soc. Am. 66, 1145 (1976). [CrossRef]
  3. J. C. Dainty, Ed., Laser Speckle and Related Phenomena (Springer, Berlin, 1975).
  4. J. C. Dainty, Opt. Acta 18, 327 (1971). [CrossRef]
  5. N. George, C. R. Christensen, J. S. Bennett, B. D. Guenther, J. Opt. Soc. Am. 66, 1282 (1976). [CrossRef]
  6. A. Kozma, C. R. Christensen, J. Opt. Soc. Am. 66, 1257 (1976). [CrossRef]
  7. R. D. Harger, Synthetic Aperture Radar Systems: Theory and Design (Academic, New York, 1970).
  8. W. M. Brown, IEEE Trans. Aerosp. Electron. Syst. AES-3, 217 (1976). [CrossRef]
  9. L. J. Porcello, N. O. Massey, R. B. Innes, J. M. Marks, J. Opt. Soc. Am. 6, 1305 (1976). [CrossRef]
  10. T. N. Cornsweet, Visual Perception (Academic, New York, 1970).
  11. F. Radcliff, M. K. Hartline, W. H. Miller, J. Opt. Soc. Am. 53, 110 (1963). [CrossRef]
  12. H. Nelson, J. Opt. Soc. Am. 53, 179 (1963). [CrossRef]
  13. L. D. Harmon, B. Julesz, Science 180, 1194 (1973). [CrossRef] [PubMed]
  14. D. M. Green, J. A. Swets, Signal Detection Theory and Psychophysics (Wiley, New York, 1966).
  15. T. W. Bernard, A Symposium on Sampled Images (Perkin-Elmer, Norwalk, 1971).
  16. J. M. Findlay, Vision Res. 9, 157 (1969). [CrossRef] [PubMed]
  17. V. N. Korwar, Ph.D. Thesis, California Institute of Technology, Pasadena (1980).
  18. J. W. Goodman, Proc. IEEE 53, 1688 (1965). [CrossRef]
  19. E. J. Gumbel, Statistics of Extremes (Columbia U.P., New York, 1958).
  20. G. S. Watson, Ann. Math. Stat. 25, 798 (1954). [CrossRef]
  21. M. Abramowitz, I. A. Stegun, Eds., Handbook of Mathematical Functions (U.S. GPO, Washington, D.C., 1970).
  22. B. D. Guenther, C. R. Christensen, A. Jain, at IEEE Computer Society Conference on Pattern Recognition and Image Processing, 78CH1318-5C (1978).
  23. W. J. Dixon, F. J. Massey, Introduction to Statistical Analysis (McGraw-Hill, New York, 1969).
  24. F. W. Campbell, J. G. Robson, J. Physiol. London 197, 551 (1968). [PubMed]
  25. C. F. Stromeyer, B. Julesz, J. Opt. Soc. Am. 62, 1221 (1972). [CrossRef] [PubMed]
  26. R. M. Jones, U. Tulunay-Keesey, J. Opt. Soc. Am. 70, 66 (1980). [CrossRef] [PubMed]
  27. J. I. Marcum, P. Swerling, IRE Trans. Inf. Theory IT-6, 59 (1960). [CrossRef]

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