A method of tie points detection in InSAR block based on SVD

A method based on Singular Value Decomposition (SVD) is presented to solve Tie Points detection in the interferometric synthetic aperture radar (InSAR) block. The core concept of this method is to construct a corresponding matrix through the eigen-decomposition of the dissimilar distribution matrix which characterizes the dissimilarity distribution of the two descriptors attached to each feature point. The combination of the corresponding matrix with the ratio of the second greatest to the greatest element attributes to TPs detection. The proposed method is validated by experiments on the four adjacent SAR image-pairs of different terrain.