Abstract

Numerical simulations of the transmission of a light impulse through strongly scattering and weakly absorbing slab media and of fan-beam-type optical computed-tomography imaging for cylindrical media are presented. A hybrid calculation scheme of scattering by the Monte Carlo method is employed to obtain the temporal variation of transmittance of the light impulse through the media. A set of projection data is provided by temporally extrapolating the difference in the optical density between the absorbing object and the nonabsorbing reference to the shortest time of flight. For the case of identical scattering between the object and reference, the reconstructed image of the difference in the absorption coefficient has better accuracy and spatial resolution than those images by the time-gating method.

© 1993 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Optical tomography by the temporally extrapolated absorbance method

Ichiro Oda, Hideo Eda, Yoshio Tsunazawa, Michinosuke Takada, Yukio Yamada, Goro Nishimura, and Mamoru Tamura
Appl. Opt. 35(1) 169-175 (1996)

Monte Carlo simulation of light transmission through living tissues

Yasuo Hasegawa, Yukio Yamada, Mamoru Tamura, and Yasutomo Nomura
Appl. Opt. 30(31) 4515-4520 (1991)

Evaluation of the temporally extrapolated absorbance method for dual-wavelength imaging through tissuelike scattering media

Jeremy C. Hebden, Maria Tziraki, and David T. Delpy
Appl. Opt. 36(16) 3802-3810 (1997)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (8)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (1)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription