9On-Board Image Ortho-Rectification Using RPC Model
9.1INTRODUCTION
Ortho-rectification is a process that orthorectifies an image onto its upright planimetry position in a given geodetic coordinate system and removes the displacement caused by terrain and distortions (Zhou et al. 2002; Zhou 2009; French and Balster 2014). Ortho-rectification is a prerequisite for remotely sensed image applications in such as land resource investigation, disaster monitoring, forestry inventory, environmental changes analysis, etc. The orthorectified image, is called digital orthophoto map (DOM), or digital orthoimage map (DOM). It not only contains the geometric information of a symbol map but also has the features of the image ...
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