Abstract

Many existing methods for the recovery of optical parameters from turbid materials rely on the diffusion approximation, which does not permit the recovery of the degree of anisotropy in the scattering phase function. These methods also make the explicit assumption that light is normally incident at the top surface of the material. We demonstrate a steady-state imaging technique that uses nonnormally incident light to determine anisotropy parameter g by fitting Monte Carlo simulation results to high dynamic range images of the intensity profiles of samples. The proposed method is simpler than existing methods and does not rely on thin samples to produce reasonable results.

© 2006 Optical Society of America

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References

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2004

2002

2000

S. A. Ramakrishna and K. D. Rao, Pramana, J. Phys. 54, 255 (2000).
[CrossRef]

1999

1997

1995

L. V. Wang, S. L. Jacques, and L. Zheng, Comput. Methods Programs Biomed. 47, 131--146 (1995).
[CrossRef] [PubMed]

L. V. Wang and S. L. Jacques, Appl. Opt. 34, 2362 (1995).
[CrossRef] [PubMed]

1993

1992

T. J. Farrell, M. S. Patterson, and B. Wilson, Med. Phys. 19, 879 (1992).
[CrossRef] [PubMed]

1989

D. R. Wyman, M. S. Patterson, and B. C. Wilson, J. Comput. Phys. 81, 137 (1989).
[CrossRef]

M. S. Patterson, B. Chance, and B. C. Wilson, Appl. Opt. 28, 2331 (1989).
[CrossRef] [PubMed]

1983

Beek, J. F.

Bevilacqua, F.

Bosch, J. J.

Chance, B.

Crofcheck, C. L.

Debevec, P. E.

P. E. Debevec and J. Malik, in Proceedings of ACM SIGGRAPH 97 (ACM Press, 1997), pp. 369-378.
[CrossRef]

Depeursingue, C.

Farrell, T. J.

T. J. Farrell, M. S. Patterson, and B. Wilson, Med. Phys. 19, 879 (1992).
[CrossRef] [PubMed]

Ferwerda, H. A.

Groenhuis, R. A.

Gross, J. D.

Hayakawa, C.

Hill, B. Y.

Jacques, S. L.

Knutson, J. R.

Knüttel, A.

Lin, S.-P.

Malik, J.

P. E. Debevec and J. Malik, in Proceedings of ACM SIGGRAPH 97 (ACM Press, 1997), pp. 369-378.
[CrossRef]

Marquet, P.

Menguc, M. P.

Patterson, M. S.

T. J. Farrell, M. S. Patterson, and B. Wilson, Med. Phys. 19, 879 (1992).
[CrossRef] [PubMed]

D. R. Wyman, M. S. Patterson, and B. C. Wilson, J. Comput. Phys. 81, 137 (1989).
[CrossRef]

M. S. Patterson, B. Chance, and B. C. Wilson, Appl. Opt. 28, 2331 (1989).
[CrossRef] [PubMed]

Payne, F. A.

Pickering, J. W.

Piguet, D.

Prahl, S. A.

Ramakrishna, S. A.

S. A. Ramakrishna and K. D. Rao, Pramana, J. Phys. 54, 255 (2000).
[CrossRef]

Rao, K. D.

S. A. Ramakrishna and K. D. Rao, Pramana, J. Phys. 54, 255 (2000).
[CrossRef]

Schmitt, J. M.

Spanier, J.

Sterenborg, H. J.

Tittel, F. K.

Tromberg, B. J.

van Gemert, M. J.

van Wierington, N.

Venugopalan, V.

Wang, L.

Wang, L. V.

L. V. Wang and S. L. Jacques, Appl. Opt. 34, 2362 (1995).
[CrossRef] [PubMed]

L. V. Wang, S. L. Jacques, and L. Zheng, Comput. Methods Programs Biomed. 47, 131--146 (1995).
[CrossRef] [PubMed]

Wilson, B.

T. J. Farrell, M. S. Patterson, and B. Wilson, Med. Phys. 19, 879 (1992).
[CrossRef] [PubMed]

Wilson, B. C.

D. R. Wyman, M. S. Patterson, and B. C. Wilson, J. Comput. Phys. 81, 137 (1989).
[CrossRef]

M. S. Patterson, B. Chance, and B. C. Wilson, Appl. Opt. 28, 2331 (1989).
[CrossRef] [PubMed]

Wyman, D. R.

D. R. Wyman, M. S. Patterson, and B. C. Wilson, J. Comput. Phys. 81, 137 (1989).
[CrossRef]

You, J. S.

Zheng, L.

L. V. Wang, S. L. Jacques, and L. Zheng, Comput. Methods Programs Biomed. 47, 131--146 (1995).
[CrossRef] [PubMed]

Appl. Opt.

Comput. Methods Programs Biomed.

L. V. Wang, S. L. Jacques, and L. Zheng, Comput. Methods Programs Biomed. 47, 131--146 (1995).
[CrossRef] [PubMed]

J. Comput. Phys.

D. R. Wyman, M. S. Patterson, and B. C. Wilson, J. Comput. Phys. 81, 137 (1989).
[CrossRef]

Med. Phys.

T. J. Farrell, M. S. Patterson, and B. Wilson, Med. Phys. 19, 879 (1992).
[CrossRef] [PubMed]

Pramana, J. Phys.

S. A. Ramakrishna and K. D. Rao, Pramana, J. Phys. 54, 255 (2000).
[CrossRef]

Other

P. E. Debevec and J. Malik, in Proceedings of ACM SIGGRAPH 97 (ACM Press, 1997), pp. 369-378.
[CrossRef]

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Figures (2)

Fig. 1
Fig. 1

(a) Experimental setups (a) for measuring μ s and μ a and (b) for measuring g.

Fig. 2
Fig. 2

(a) Radiant exitance for the green color channel data from our skim milk measurement. (b) Results of fitting by a Monte Carlo simulation with g = 0.7 . (c) Intensity profiles for the central scan lines indicated by white lines in (a) and (b) and the result predicted by dipole diffusion.

Tables (1)

Tables Icon

Table 1 Recovered Optical Parameters

Equations (3)

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R ( r ) = α 4 π [ z p ( 1 + r p μ eff ) exp ( r p μ eff ) r p 3 + z n ( 1 + r n μ eff ) exp ( r n μ eff ) r n 3 ] ,
ρ d ( η ) = 0.4399 + 0.7099 η 1 0.3319 η 2 + 0.0636 η 3
μ s = μ s 1 g .

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