A Modulation Transfer Function Compensation for the Geostationary Ocean Color Imager(GOCI) based on the Wiener Filter

DC Field Value Language
dc.contributor.author 오은송 -
dc.contributor.author 안기범 -
dc.contributor.author 조성익 -
dc.contributor.author 유주형 -
dc.date.accessioned 2020-07-16T07:31:08Z -
dc.date.available 2020-07-16T07:31:08Z -
dc.date.created 2020-02-11 -
dc.date.issued 2013-10-23 -
dc.identifier.uri https://sciwatch.kiost.ac.kr/handle/2020.kiost/26669 -
dc.description.abstract The modulation transfer function (MTF) is a widely used indicator in assessments of remote-sensing image quality. This MTF method is also used to restore information to a standard value to compensate for image degradation caused by atmospheric or satellite jitter effects. In this study, we evaluated MTF values as an image quality indicator for the Geostationary Ocean Color Imager (GOCI). GOCI was launched in 2010 to monitor the ocean and coastal areas of the Korean peninsula. We evaluated in-orbit MTF value based on the GOCI image having a 500-m spatial resolution in the first time. The pulse method was selected to estimate a point spread function (PSF) with an optimal natural target such as a Seamangeum Seawall. Finally, image restoration was performed with a Wiener filter (WF) to calculate the PSF value required for the optimal regularization parameter. After application of the WF to the target image, MTF value is improved 35.06%, and the compensated image shows more sharpness comparing with the original image.ric or satellite jitter effects. In this study, we evaluated MTF values as an image quality indicator for the Geostationary Ocean Color Imager (GOCI). GOCI was launched in 2010 to monitor the ocean and coastal areas of the Korean peninsula. We evaluated in-orbit MTF value based on the GOCI image having a 500-m spatial resolution in the first time. The pulse method was selected to estimate a point spread function (PSF) with an optimal natural target such as a Seamangeum Seawall. Finally, image restoration was performed with a Wiener filter (WF) to calculate the PSF value required for the optimal regularization parameter. After application of the WF to the target image, MTF value is improved 35.06%, and the compensated image shows more sharpness comparing with the original image. -
dc.description.uri 2 -
dc.language English -
dc.publisher 한국우주과학회 -
dc.relation.isPartOf 2013 추계 우주과학회 -
dc.title A Modulation Transfer Function Compensation for the Geostationary Ocean Color Imager(GOCI) based on the Wiener Filter -
dc.type Conference -
dc.citation.conferencePlace KO -
dc.citation.endPage 48 -
dc.citation.startPage 48 -
dc.citation.title 2013 추계 우주과학회 -
dc.contributor.alternativeName 오은송 -
dc.contributor.alternativeName 안기범 -
dc.contributor.alternativeName 조성익 -
dc.contributor.alternativeName 유주형 -
dc.identifier.bibliographicCitation 2013 추계 우주과학회, pp.48 -
dc.description.journalClass 2 -
Appears in Collections:
Marine Digital Resources Department > Korea Ocean Satellite Center > 2. Conference Papers
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