Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/7284
Title: Improvement of the accuracy of InSAR image co-registration based on tie points - A review
Authors: Zou, W
Li, Y
Li, Z 
Ding, X 
Keywords: Co-registration
InSAR
Interferogram
Interval of tie points
Window size
Issue Date: 2009
Publisher: Molecular Diversity Preservation International-Mdpi
Source: Sensors, 2009, v. 9, no. 2, p. 1259-1281 How to cite?
Journal: Sensors 
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.
URI: http://hdl.handle.net/10397/7284
DOI: 10.3390/s90201259
Appears in Collections:Journal/Magazine Article

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