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9 October 2018 High-speed search of the control points on images of Earth surface using GPU
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Abstract
Control and refinement of the geodetic linkage according to control points are one of the stages for processing of satellite image with high spatial resolution. The present paper has suggested a solution of two issues connected with high speed search of control points. Firstly, continuous supporting coating synthesized from separate images obtained from the spacecraft Landsat-8 has been created. Existing solutions for storage of the reference data have been studied and implementation of the tile storage being significantly exceeding than open solutions GeoServer, MapServer by speed has been suggested. Secondly, a possibility of effective parallel implementation of algorithms for search of control points using modern computer technology including multicore CPU and GPU has been researched. Method to search control points allowing forming a set of control points with the specified reliability and speed greatly increasing the correlation-based algorithm speed has been suggested.
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A. Ryzhikov, A. Kochergin, and A. Kuznetcov "High-speed search of the control points on images of Earth surface using GPU", Proc. SPIE 10792, High-Performance Computing in Geoscience and Remote Sensing VIII, 107920G (9 October 2018); https://doi.org/10.1117/12.2325344
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