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Proceedings Paper

Rapid geographic mapping method of remote sensing data and its applications
Author(s): Yong Q. Kang
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Paper Abstract

Precise geographic mapping of remote sensing (RS) data is prerequisite for time series analysis of multiple RS data. Conventional georegistration of scanned image along satellite track, of which spatial resolutions on earth surface are not uniform, requires heavy computational efforts. A rapid and precise mapping method, referred to as the Piecewise Affine Transform (PAT) method, is developed. In PAT method, each polygon of which vertices are defined by ground control points (GCP) are mapped to target grids, and affine transforms are used in determining the pixel location of scanned image in mapping data inside of each polygon. The PAT method does not involve any 'proximity searching', and mapping by PAT method is very rapid. For typical scanned data of a few thousands lines, mapping look up table (LUT) can be made within a second in personal computer. Using LUT data base, mapping can be easily made by the nearest neighbour or bilinear interpolation method. The PAT algorithm is tested by mapping MODIS scanned image, and found precise mapping was achieved.

Paper Details

Date Published: 28 October 2010
PDF: 8 pages
Proc. SPIE 7861, Geostationary Ocean Color Imager (GOCI) Technical Development, Operation, and Applications, 78610E (28 October 2010); doi: 10.1117/12.873211
Show Author Affiliations
Yong Q. Kang, Pukyong National Univ. (Korea, Republic of)

Published in SPIE Proceedings Vol. 7861:
Geostationary Ocean Color Imager (GOCI) Technical Development, Operation, and Applications
Yu-Hwan Ahn; David Antoine; Paula S. Bontempi; Delu Pan, Editor(s)

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