Antonelli, Terry & Wands
Image correction processing method and apparatus
 By using a low-frequency component of attitude data of an uncorrected image resulting from scanning the ground by means of a sensor mounted on a satellite, low-frequency distortion correction coefficients are calculated. By using a high-frequency component of attitude data, a change rate is calculated. From said low-frequency distortion correction coefficients and said change rate, distortion correction coefficients covering a high frequency are calculated. By applying bidirectional resampling to the uncorrected image by using said distortion correction coefficients covering a high frequency, a corrected image is obtained. 
Hitachi, Ltd.
G
G01C
inventional
Hirotaka Shimbu Fuminobu Youichi Koichi Yutaka
Mizuno Yamagata Komura Seto Homma Kubo