Arridge S R, Schweiger M
Appl Opt. 1995 Dec 1;34(34):8026-37. doi: 10.1364/AO.34.008026.
This paper presents a method to calculate photon-measurement density functions (PMDF's), which were introduced in Part 1 [Appl. Opt. 34, 7395-7409 (1995), for near-infrared imaging and spectroscopy in complex and inhomogeneous objects through the use of a finite-element model. PMDF's map the sensitivity of a measurement on the surface of an object to the perturbations of the optical parameters within the object. Data are presented for homogeneous and layered circular objects and for a complex two-dimensional model of a head. In particular the influence of the optical parameters on the shape of the PMDF and the distortions caused by boundary layers and complex inhomogeneties are investigated.
本文提出了一种计算光子测量密度函数（PMDF）的方法，该函数在第1部分[《应用光学》34, 7395 - 7409 (1995)]中被引入，用于通过有限元模型对复杂且不均匀物体进行近红外成像和光谱分析。PMDF描绘了物体表面测量对物体内部光学参数扰动的敏感度。文中给出了均匀和分层圆形物体以及头部复杂二维模型的数据。特别研究了光学参数对PMDF形状的影响以及边界层和复杂不均匀性所导致的畸变。
