Technology and Methodology |
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AN ANALYSIS AND APPRAISAL OF TOPOGRAPHIC INFLUENCE ON AERIAL ARRAY CCD IMAGES |
WEI Zheng 1, 2, LIU Xue 1, 3, ZHANG Bing 4 |
1. School of Earth and Space Sciences, Peking University, Beijing 100871, China; 2. State Key Laboratory of Remote
Sensing Science of Chinese Academy of Sciences and Beijing Normal University, Beijing 100101, China; 3. Graduate
School of Chinese Academy of Sciences, Beijing 100049, China; 4. Center for Earth Observation and Digital Earth,
Chinese Academy of Sciences, Beijing 100080, China |
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Abstract Topographic factors such as hypsography and earth curvature are greatly responsible for remote sensing
image distortion. Nevertheless, the earth curvature is often neglected by traditional aerial photogrammetry in
processing the films. With the Multi-mode Aerial Digital Camera System (MADC) developed and produced by IRSA as the
object, this paper analyzed the topographic influences on aerial array CCD imaging. On the basis of the imaging
model and geometric configuration of MADC, the distortion models of hypsography and earth curvature were derived
respectively for estimating topographic influences by simulating data. It is concluded that the earth curvature
distortion must be rectified in precise processing of aerial array CCD images.
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Keywords
Linear structure
Fault
Fluid inclusion
Three gorges dam
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Issue Date: 13 July 2009
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