Fast method for inverse determination of optical parameters from two measured signals Academic Article uri icon

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abstract

  • 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 μ(a), scattering coefficient μ(s), 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.

authors

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

publication date

  • June 15, 2013