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Proceedings Paper

Block method for the calculation of light distribution in random media
Author(s): Wei Sun; Jiang Li; Zhongde Wang; Weiming Lu; Weiyang Li
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Paper Abstract

Prediction of light distribution in random medium is still an unsolved problem. Although the Monte Carlo method can deal with medium with inhomogeneous and anisotropic optical properties, the long calculating time makes it hard to be applied clinically. This paper presents a block method, by which the target medium is divided into many small cubic blocks. The absorptances and transmittances of these small cubes are pre-calculated by the Monte Carlo method. The light propagation in the random medium is simulated by calculating the light transmission between these small cubes. With this method, the distribution of light absorption in target medium can be determined within one minute even in a personal computer. As an example, the distribution of light absorption in a tumor surrounded by normal tissue is shown.

Paper Details

Date Published: 14 September 1993
PDF: 7 pages
Proc. SPIE 1888, Photon Migration and Imaging in Random Media and Tissues, (14 September 1993); doi: 10.1117/12.154632
Show Author Affiliations
Wei Sun, Zhejiang Univ. (China)
Jiang Li, Zhejiang Univ. (China)
Zhongde Wang, Zhejiang Medical Instrument Institute (China)
Weiming Lu, Zhejiang Medical Instrument Institute (China)
Weiyang Li, Zhejiang Univ. (China)

Published in SPIE Proceedings Vol. 1888:
Photon Migration and Imaging in Random Media and Tissues
Britton Chance; Robert R. Alfano, Editor(s)

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