Technology and Methodology |
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AUTOMATIC RELATIVE ORIENTATION OF MULTI-ANGLE REMOTE SENSED IMAGERY CONDUCTED BY GPS |
Gao Feng |
Nanjing Institute of Geography and Limnology, Chiness Academy of Sciences, Nanjiang 210008 |
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Abstract With the development of aviation and computer science, Multi-angle remote sense has become a new focus of fundamental research in remote sense. Different from traditional observed method, multi-angle remote sense provides not only the spectrum information of ground object but also structure feature, and becomes one of the most important quantitative analysis ways of remote sensed data. Unfortunately multi-angle remote sense also make the image process more complex. The registration of multi-angle remote sensed image is one of the most difficult steps. This paper presents a new method to automatic register multi-angle image and has applied to POLDER (Polarization and Directionality of Earth's Reflectance) data. First, we use GPSto conduct object's primary position which orientation accuracy was estimated about 100 meters. Second, we use image grey and structure feature to register again. The final result was sure to better than 30meters. At last, these control positions was used to register multi-angle images and obtain BRDF (Bidirectional Reflectance Distribution Function) information of aerial platform. The process of aerial BRDFwill discuss in another paper.
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Keywords
Landscape pattern
Dynamic change
Remote sensing
Chongqing city
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Issue Date: 02 August 2011
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[1] 高峰、朱启疆.植被冠层多角度遥感研究进展.地理科学,1997,50(4)[2] Leroy M,Breon F. M.,Angular signatures of surface refleccances from airborne POLDER data. Remote Sensing of Environment,1996(57) : 97-107[3] 〔美〕W.K.普拉特著数字图像处理学,北京:科学出版社,1984. 344-347 |
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