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http://dx.doi.org/10.7848/ksgpc.2021.39.1.13

Co-registration Between PAN and MS Bands Using Sensor Modeling and Image Matching  

Lee, Chang No (Dept. of Civil Engineering, Seoul National University of Science and Technology)
Oh, Jae Hong (Dept. of Civil Engineering, Korea Maritime and Ocean University)
Publication Information
Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography / v.39, no.1, 2021 , pp. 13-21 More about this Journal
Abstract
High-resolution satellites such as Kompsat-3 and CAS-500 include optical cameras of MS (Multispectral) and PAN (Panchromatic) CCD (Charge Coupled Device) sensors installed with certain offsets. The offsets between the CCD sensors produce geometric discrepancy between MS and PAN images because a ground target is imaged at slightly different times for MS and PAN sensors. For precise pan-sharpening process, we propose a co-registration process consisting the physical sensor modeling and image matching. The physical sensor model enables the initial co-registration and the image matching is carried out for further refinement. An experiment with Kompsat-3 images produced RMSE (Root Mean Square Error) 0.2pixels level of geometric discrepancy between MS and PAN images.
Keywords
Co-registration; Sensor Modeling; Image Matching; Pan-sharpening;
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