気象衛星ノアAPT画像の球面幾何歪補正

概要

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The APT (Automatic Picture Transmission) image of weather satellite NOAA is produced by the on-board computer from AVHRR (Advanced Very High Resolution Radiometer) data by using simple correction procedure for spherical geometric distortion, and has the facsimile signal format. However, a spherical geometric distortion remains partially in the APT image in this simple correction procedure. In order to reduce the distortion, the correction procedure is traced conversely, and a false AVHRR image is reproduced from the APT image. The false AVHRR image is converted into the accurate egui-distance image again. As a result of investigation of spherical geometric distortion which remains in the picture by the GCP (Ground Control Point) method, thd distortion is extremely decreased by using their proposed method.
宇部工業高等専門学校の論文