Title :
Phase unwrapping of SAR interferogram based on dyadic wavelets
Author :
Li, Xinwu ; Guo, Huadong ; Wang, Changlin ; Li, Zhen ; Liao, Jingjuan
Author_Institution :
Inst. of Remote Sensing Applications, Chinese Acad. of Sci., Beijing, China
Abstract :
A new phase unwrapping algorithm based on fringe line detection is presented. Dyadic wavelet theory is used to extract the multi-scale edge of an SAR interferogram. The phase characteristic of the interferogram are derived utilizing an active contour algorithm of the gradient vector flow.
Keywords :
edge detection; radar theory; radiowave interferometry; synthetic aperture radar; wavelet transforms; GVF; SAR interferogram; active contour algorithm; dyadic wavelets theory; fringe line detection; gradient vector flow; multi-scale edge extraction; phase characteristic; phase unwrapping; synthetic aperture radar; Active contours; Concrete; Curve fitting; Delta modulation; Equations; Image edge detection; Information science; Phase detection; Remote sensing; Wavelet transforms;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2002. IGARSS '02. 2002 IEEE International
Print_ISBN :
0-7803-7536-X
DOI :
10.1109/IGARSS.2002.1026603
