中介真值程度度量，基于中介真值程度度量的图像分割进行逐步线性回归，利用最小二乘法进行拟合多元非线性方程。- The true extent of the value of the intermediary measure, measure the true extent of the agency based on the value of image segmentation Stepwise linear regression, Multivariate least squares fitting method of nonlinear equations.