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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 30, Iss. 18 — Jun. 20, 1991
  • pp: 2647–2651

Simple empirical model of the oceanic point spread function

Kenneth J. Voss  »View Author Affiliations


Applied Optics, Vol. 30, Issue 18, pp. 2647-2651 (1991)
http://dx.doi.org/10.1364/AO.30.002647


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Abstract

The point spread function (PSF) is an important property for predicting beam propagation and imaging system performance. Measurements of the PSF in three different locations (Pacific Ocean, Tongue of the Ocean, and Sargasso Sea) are presented. These measurements are used to validate extensive laboratory measurements [ DuntleyS. Q., “ Underwater Lighting by Submerged Lasers and Incandescent Sources,” SIO Ref. 71-1, Scripps Institution of Oceanography, U. California, San Diego ( 1971)]. In all three locations a simple exponential expression describes the angular variation of the PSF in the 4–100-mrad range. The exponent in this relationship has a simple location specific dependence on attenuation length and the ratio of the absorption to beam attenuation coefficient. These relationships can be used to predict the PSF for an arbitrary path length.

© 1991 Optical Society of America

History
Original Manuscript: September 19, 1990
Published: June 20, 1991

Citation
Kenneth J. Voss, "Simple empirical model of the oceanic point spread function," Appl. Opt. 30, 2647-2651 (1991)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-30-18-2647


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References

  1. B. L. McGlamery, “Computer Analysis and Simulation of Underwater Camera System Performance,” SIO Ref. 75-2, Scripps Institution of Oceanography, U. California, San Diego (1975).
  2. L. E. Mertens, F. S. Replogle, “Use of Point Spread and Beam Spread Functions for Analysis of Imaging Systems in Water,” J. Opt. Soc. Am. 67, 1105–1117 (1977). [CrossRef]
  3. W. H. Wells, “Theory of Small Angle Scattering,” in Optics of the Sea, AGARD Lect. Ser.61 (NATO, 1973).
  4. T. J. Petzold, “Volume Scattering Functions for Selected Ocean Waters,” SIO Ref. 72-78, Scripps Institution of Oceanography, U. California, San Diego (1972).
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  6. R. C. Honey, “Beam Spread and Point Spread Functions and Their Measurement in the Ocean,” Proc. Soc. Photo-Opt. Instrum. Eng. 208, 242–248 (1979).
  7. K. J. Voss, A. L. Chapin, “Measurement of the Point Spread Function in the Ocean,” Appl. Opt. 29, 3638–3642 (1990). [CrossRef] [PubMed]
  8. A. Morel, R. C. Smith, “Terminology and Units in Optical Oceanography,” Mar. Geod. 5, 335–349 (1982). [CrossRef]
  9. K. J. Voss, “Variability of the Point Spread Function in the Water Column,” Proc. Soc. Photo-Opt. Instrum. Eng. 1302, 355–362 (1990).
  10. J. Smart, Applied Physics Laboratory, Johns Hopkins U., Laurel, Md. 20707 (unpublished data, 1990).
  11. K. J. Voss, “Use of the Radiance Distribution to Measure the Optical Absorption Coefficient in the Ocean,” Limnol. Oceanogr. 34, 1614–1622 (1989). [CrossRef]

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