Finite volume method based method for solving diffuse optical tomography forward problems based on

The invention relates to a finite volume method algorithm for processing the diffuse optical tomography forward process. According to the method, optical characteristic parameters of a biological tissue area to be solved are dispersed into a plurality of mutually associated control volume units, conservation characteristics and correlate characteristics of physical qualities on each control volume unit are popularized to the whole tissue area, and then a photon density value at the position of a boundary is obtained through combination of specific theories describing spread of light in tissues and the finite volume method. According to the method, calculation in a solving domain is transformed to the boundary of the solving domain in the implementation process, so that the calculated amount is reduced, the high accuracy is provided, finally, the processing efficiency of the diffuse optical tomography forward process is greatly improved, and a foundation is laid for reverse problems of diffuse optical image re