A three-dimensional geometric monte-carlo method for the simulation of light propagation in bio-tissue

  • Yong Zhang
  • , Bin Chen
  • , Dong Li
  • , Guo Xiang Wang

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

A geometric Monte-Carlo (GMC) algorithm is proposed based on accurate calculation of optical transmission on the material interface for the simulation of light propagation in turbid media (e.g. bio-tissue). Grid is not necessary for the computation of photons' motion and the memory of optical parameters can be saved. Optical transmission is exactly simulated at material interfaces with curved boundary according to the principles of geometric optics, while energy deposition in different structures can be precisely counted. The validity of GMC method is confirmed by the comparison with voxels based Monte-Carlo method. Time consumed by GMC method is dramatically shortened compared with the hexahedral voxels based Monte-Carlo (VMC) method: about 25 times faster than VMC with a grid of 140 × 140 × 100 cells. In addition, the present GMC method shows better portability when raising the geometric complexity.

Original languageEnglish
Title of host publicationInternational Conference on Computational Methods for Thermal Problems
PublisherDalian University of Technology
Pages151-154
Number of pages4
ISBN (Print)9788874314591, 9788874318285
StatePublished - 2014
EventInternational Conference on Computational Methods for Thermal Problems, ThermaComp 2014 - Lake Bled, Slovenia
Duration: 2 Jun 20144 Jun 2014

Publication series

NameInternational Conference on Computational Methods for Thermal Problems
Volume0
ISSN (Print)2305-5995
ISSN (Electronic)2305-6924

Conference

ConferenceInternational Conference on Computational Methods for Thermal Problems, ThermaComp 2014
Country/TerritorySlovenia
CityLake Bled
Period2/06/144/06/14

Keywords

  • Bio-tissue
  • Geometric Monte-Carlo algorithm
  • Geometric optics
  • Light propagation

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