document: Innovative phase unwrapping algorithm : hybrid approach We present a novel algorithm based on a hybrid of the global and local treatment of a wrapped map . The proposed algorithm is especially effective for the unwrapping of speckle-coded interferogram contour maps . In contrast to earlier unwrapping algorithms by region , we propose a local discontinuity-restoring criterion to serve as the preprocessor or postprocessor of our hybrid algorithm , which makes the unwrapping by region much easier and more efficient . With this hybrid algorithm , a robust , stable , and especially time effective phase unwrapping can be achieved . Additionally , the criterion and limitation of this hybrid algorithm are fully described . The robustness , stability , and speed of this hybrid algorithm are also studied . The proposed algorithm can be easily upgraded with minor modifications to solve the unwrapping problem of maps with phase inconsistency . Both numerical simulation and experimental applications demonstrate the effectiveness of the proposed algorithm
doc_bio_tags: O B I I O O O O O O O O O O O O O O O O B I O O B I O O O O O O O O O O O O O O O O O O O O B I O O O O O O O O O O O O O O O B O O B I O O O O O O O O O O O O O O O B I O O O O O O O O O O O O O O O O O O O O O O O O B I O O O O O O O O O O O O O B I O O O O O O O O O O O O O O O O O B I O O O B I O O B I O O O O O O O O O O