Image restoration of the asymmetric point spread function of a high-resolution remote sensing satellite with time-delayed integration |
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| Authors: | Dong-Han Lee Ji Yeon Yang Doo Chun Seo Jeong Heon Song Jae Heon Chung Hyo Suk Lim |
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| Institution: | 1. Korea Aerospace Research Institute, 45 Eoeun-dong Yuseong-gu, Daejeon 305-333, South Korea;2. Department of Astronomy, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 120-749, South Korea |
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| Abstract: | The calibration and validation team of the Korea Aerospace Research Institute has calibrated and validated the image data of the KOMPSAT-2 since the launch of KOMPSAT-2 on July 28, 2006. The asymmetric phenomenon of the point spread function of the KOMPSAT-2 image data is evident in both the along and the across direction, most likely because KOMPSAT-2 has a 1 m ground sample distance high-resolution camera with time-delayed integration. Furthermore, because KOMPSAT-2 is in space, the KOMPSAT-2 image data has been corrected with good results by means of modulation transfer function compensation. |
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| Keywords: | Calibration Validation Image restoration PSF MTFC KOMPSAT-2 |
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