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Journal of the Optical Society of America A

Journal of the Optical Society of America A

| OPTICS, IMAGE SCIENCE, AND VISION

  • Vol. 10, Iss. 4 — Apr. 1, 1993
  • pp: 561–566

Entropy-based depth from focus

V. Michael Bove, Jr.  »View Author Affiliations


JOSA A, Vol. 10, Issue 4, pp. 561-566 (1993)
http://dx.doi.org/10.1364/JOSAA.10.000561


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Abstract

The two-image depth-from-focus problem is reconsidered in terms of entropy loss in a linear filter. It is shown that this formulation leads to a relatively simple solution whose variance is equal to or less than that from a regression approach. The formulation is appropriate even when the point-spread function of the optical system is not well suited to a low-order regression fit or when both images used contain some degree of defocusing with distance.

© 1993 Optical Society of America

History
Original Manuscript: March 9, 1992
Revised Manuscript: October 23, 1992
Manuscript Accepted: November 3, 1992
Published: April 1, 1993

Citation
V. Michael Bove, "Entropy-based depth from focus," J. Opt. Soc. Am. A 10, 561-566 (1993)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-10-4-561


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References

  1. M. Born, E. Wolf, Principles of Optics (Pergamon, Oxford, U.K., 1970), pp. 203–232, 459–490.
  2. L. A. Maver, J. Bisbee, C. D. Erdman, L. A. Scarff, J. H. Clark, “Aerial imaging systems,” in J. M. Sturge, V. Walworth, A. Shepp, eds., Imaging Processes and Materials (Van Nostrand Reinhold, New York, 1989), pp. 448–453.
  3. B. K. P. Horn, “Focusing,” Project MAC Artificial Intelligence Memo 160 (Massachusetts Institute of Technology, Cambridge, Mass., 1968).
  4. A. P. Pentland, “A new sense for depth of field,” IEEE Trans. Patt. Anal. Mach. Intell. PAMI-9, 523–531 (1987). [CrossRef]
  5. M. Subbarao, “Parallel depth recovery by changing camera parameters,” in Proceedings of IEEE Second International Conference on Computer Vision (Institute of Electrical and Electronics Engineers, New York, 1988), pp. 149–155. [CrossRef]
  6. J. E. Ens, “An investigation of methods for determining depth from focus,” Ph.D. dissertation (University of British Columbia, Vancouver, B.C., 1990).
  7. V. M. Bove, “Discrete Fourier transform based depth from focus,” in Digest of Topical Meeting on Image Understanding and Machine Vision (Optical Society of America, Washington, D.C., 1989), pp. 118–121.
  8. V. M. Bove, “Probabilistic method for integrating multiple sources of range data,” J. Opt. Soc. Am. A 7, 2193–2198 (1990). [CrossRef]
  9. R. A. Jarvis, “A perspective on range finding techniques for computer vision,” IEEE Trans. Patt. Anal. Mach. Intell. PAMI-5, 122–139 (1983). [CrossRef]
  10. C. E. Shannon, W. Weaver, The Mathematical Theory of Communication (U. Illinois Press, Urbana, Ill., 1949), pp. 81–96.
  11. J. Makhoul, “Linear prediction: a tutorial review,” Proc. IEEE 63, 561–580 (1975). [CrossRef]
  12. V. M. Bove, “Synthetic movies derived from multidimensional image sensors,” Ph.D. dissertation (Massachusetts Institute of Technology, Cambridge, Mass., 1989).
  13. P. A. Stokseth, “Properties of a defocused optical system,” J. Opt. Soc. Am. 59, 1314–1321 (1969). [CrossRef]
  14. D. Gabor, “Theory of communication, part III,” J. Inst. Electr. Eng. 93, 429–457 (1946).
  15. G. M. Jenkins, D. G. Watts, Spectral Analysis and Its Applications (Holden-Day, San Francisco, Calif., 1968), pp. 239–284.
  16. A. Papoulis, Signal Analysis (McGraw-Hill, New York, 1977), pp. 234–243.

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