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| A New Method of Block Adjustment of Airborne SAR Images with Few GCPs |
| Ma Jing①②③ You Hong-jian①② Long Hui①② Ding Chi-biao①② |
| ①Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China ②Key Laboratory of Technology in Geo-spatial Information Processing and Application System, Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China ③Graduate University, Chinese Academy of Sciences, Beijing 100190, China |
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Abstract Lacking of GCPs (Ground Control Points) in hard survey area is one of the most difficult problems of geometric rectification. This paper proposes a new method of large SAR image-block adjustment based on F.leberl model. The parameters of the images and ground coordinate of pass points can be calculated with the use of alternative and iterative algorithm. The result shows that this method could get steady result with few GCPs and the error of tie points can also be decreased effectively, the accuracy reaches to the lever of single-image-calibration method.
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Received: 13 November 2009
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Corresponding Authors:
Ma Jing
E-mail: majingsnow@163.com
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2010, Vol. 32 
