Last, in preparative process, with the shape and weight of dropping pills as evaluation indexes to potimize the sort and dosage of matrix.

In order to evaluate the quality of fused image, the merit and defect of every fusion method, there must be a set of objective and overall evaluation indexes in theory.

This paper establishes a synthetic evaluation index system of the urban rail transit transfer hinge with AHP method, quantifies the index system and gives different weights to all evaluation indexes.