Study on Difference of Gaussian Model-based Low Level Visual Feature Detection;

Assuming the channel estimation is obtained by N symbols′ correlation using common pilot channel (CPICH),we proceed to develop a fully analytical assessment of the impacts of Gaussian error and Doppler spread on the MRC performance.

For this character,to use more fine double Gauss model to simulate the distribution and to use EM principle to get the corresponding model coefficients is a good idea.

A segmentation and reconstruction method based-on weighted difference of Gaussians for target image microcalcifications from mammogram within large-scale inhomogenous background is introduced.