Patent ID: 8774360
Filing Date: 2014-07-08
Classification: A61B,G06T

Abstract:
1. A method for processing diffuse radiation spectra through a material in order to obtain a primary diffuse radiation spectrum through the material, in which the material is exposed to an incident irradiation beam emitted by a radiation source and at least one diffuse radiation spectrum through the material is measured, the method comprising: measuring the primary diffuse radiation spectrum through the material by means of a main detector, arranged so that an observation field of the main detector intersects the incident irradiation beam inside the material; measuring at least one secondary spectrum of diffuse radiation through the material by means of at least one secondary detector; constructing a measurements matrix (X) starting from a previously measured spectra; and decomposing the measurements matrix in two non-negative matrices, including a weights matrix (A) and a spectra matrix (S), wherein the spectra matrix comprises an estimated multiple diffuse radiation spectrum and an estimated primary diffuse radiation spectrum.