MST phase unwrapping based on new weighted map

Phase unwrapping can be cast as a minimization problem under the Lp-norm framework. In this framework, it is a critical step that derives weighted function from prior information. This letter presents a new weighted map which is calculated by local phase signal to noise ratio(SNR) based on linear phase hypothesis. The proposed weighted map can reduce slope effect of coefficient and fuse the consideration of intensity. Lastly, the tests performed on real data confirm the validity of our method.