Fast method for inverse determination of optical parameters from two measured signals

Xun Chen, Yuanming Feng, Jun Q. Lu, Xiaohui Liang, Jue Ding, Yong Du, Xin Hua Hu

Research output: Contribution to journalArticle


Solving inverse problems requires multiple forward calculations of measured signals. We present a fast method combining graphic processing unit-accelerated Monte Carlo simulations of individual photons and a new perturbation scheme for a 300-fold speedup in comparison to conventional CPU-based approaches. The method allows rapid calculations of the diffuse reflectance and transmittance signals from a turbid sample of absorption coefficient μa, scattering coefficient μs, and anisotropy factor g based on the principle of correlated sampling. To demonstrate its strong utility, we have applied the method for determining the optical parameters of diluted intralipid samples with satisfactory results.

Original languageEnglish (US)
Pages (from-to)2095-2097
Number of pages3
JournalOptics Letters
Issue number12
StatePublished - Jun 15 2013


ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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