Improvement of the Accuracy of InSAR Image Co-Registration Based On Tie Points – A ReviewReportar como inadecuado




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1

Shenzhen Institute of Advanced Technology, P.R. China

2

The University of Southern Queensland, Australia

3

The Hong Kong Polytechnic University, Hong Kong, P.R. China





*

Author to whom correspondence should be addressed.



Abstract Interferometric Synthetic Aperture Radar InSAR is a new measurement technology, making use of the phase information contained in the Synthetic Aperture Radar SAR images. InSAR has been recognized as a potential tool for the generation of digital elevation models DEMs and the measurement of ground surface deformations. However, many critical factors affect the quality of InSAR data and limit its applications. One of the factors is InSAR data processing, which consists of image co-registration, interferogram generation, phase unwrapping and geocoding. The co-registration of InSAR images is the first step and dramatically influences the accuracy of InSAR products. In this paper, the principle and processing procedures of InSAR techniques are reviewed. One of important factors, tie points, to be considered in the improvement of the accuracy of InSAR image co-registration are emphatically reviewed, such as interval of tie points, extraction of feature points, window size for tie point matching and the measurement for the quality of an interferogram. View Full-Text

Keywords: Co-registration; InSAR; interferogram; window size; interval of tie points Co-registration; InSAR; interferogram; window size; interval of tie points





Autor: Weibao Zou 1,* , Yan Li 2, Zhilin Li 3 and Xiaoli Ding 3

Fuente: http://mdpi.com/



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