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Proceedings Paper

Influence of scattering phase function on P3 approximation
Author(s): Ying Liu; Xiaojuan Zhang; Youzhou Hu; Yunhan Luo
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Paper Abstract

P3 approximation of Boltzmann transport equation describes the radiance close to source with accuracy superior to diffuse approximation, which considers the high-order moments of phase function. Here, through studying the influence of two different phase functions on P3 approximation, we find that the difference of diffuse reflectance in the P3 approximation is distinct in about 0.45mm close to source for tissue phase function and Henyey-Greenstein (HG) phase function; tissue phase function can more character the microstructure of biological tissue than HG phase function. The research shows light for improving the accuracy of describing the radiance close to source, and of determining the optical properties of small volume tissue.

Paper Details

Date Published: 8 December 2003
PDF: 6 pages
Proc. SPIE 5254, Third International Conference on Photonics and Imaging in Biology and Medicine, (8 December 2003); doi: 10.1117/12.546218
Show Author Affiliations
Ying Liu, Tianjin Univ. (China)
Xiaojuan Zhang, Tianjin Univ (China)
Civil Aviation Univ. of China (China)
Youzhou Hu, Tianjin Univ. (China)
Yunhan Luo, Tianjin Univ. (China)


Published in SPIE Proceedings Vol. 5254:
Third International Conference on Photonics and Imaging in Biology and Medicine

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