In-orbit geometric calibration of HaiYang-1C coastal zone imager with multiple fields
The HaiYang-1C coastal zone imager (CZI) consists of two independent cameras with a total image swath of approximately 1000 km. In order to obtain precise imaging parameters of the CZI cameras, a feasible in-orbit geometric calibration approach with multiple fields is presented. First, the master CCD is calibrated with a calibration field. Then, the slave CCDs are respectively calibrated with different fields. Finally, the calibrated internal shift parameters of the slave CCDs are adjusted with tie points between adjacent sub-images. Seven HaiYang-1C CZI images were tested. The experimental results showed that the imaging parameters calibrated with the presented approach could perform as well as those calibrated with the conventional approach with a single field. However, the total swath of the calibration fields could be reduced from approximately 1000 km to 300 km. The application difficulties in collecting satisfactory calibration sub-images could be thereby significantly reduced in the geometric calibration.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2021 |
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| Erschienen: |
2021 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:29 |
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| Enthalten in: |
Optics express - 29(2021), 12 vom: 07. Juni, Seite 18950-18965 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Cao, Jinshan [VerfasserIn] |
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| Links: |
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| Anmerkungen: |
Date Revised 22.06.2021 published: Print Citation Status PubMed-not-MEDLINE |
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| doi: |
10.1364/OE.427023 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM327015535 |
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| 100 | 1 | |a Cao, Jinshan |e verfasserin |4 aut | |
| 245 | 1 | 0 | |a In-orbit geometric calibration of HaiYang-1C coastal zone imager with multiple fields |
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| 500 | |a Date Revised 22.06.2021 | ||
| 500 | |a published: Print | ||
| 500 | |a Citation Status PubMed-not-MEDLINE | ||
| 520 | |a The HaiYang-1C coastal zone imager (CZI) consists of two independent cameras with a total image swath of approximately 1000 km. In order to obtain precise imaging parameters of the CZI cameras, a feasible in-orbit geometric calibration approach with multiple fields is presented. First, the master CCD is calibrated with a calibration field. Then, the slave CCDs are respectively calibrated with different fields. Finally, the calibrated internal shift parameters of the slave CCDs are adjusted with tie points between adjacent sub-images. Seven HaiYang-1C CZI images were tested. The experimental results showed that the imaging parameters calibrated with the presented approach could perform as well as those calibrated with the conventional approach with a single field. However, the total swath of the calibration fields could be reduced from approximately 1000 km to 300 km. The application difficulties in collecting satisfactory calibration sub-images could be thereby significantly reduced in the geometric calibration | ||
| 650 | 4 | |a Journal Article | |
| 700 | 1 | |a Wang, Fengwen |e verfasserin |4 aut | |
| 700 | 1 | |a Zhou, Ying |e verfasserin |4 aut | |
| 700 | 1 | |a Ye, Zhiwei |e verfasserin |4 aut | |
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| 773 | 1 | 8 | |g volume:29 |g year:2021 |g number:12 |g day:07 |g month:06 |g pages:18950-18965 |
| 856 | 4 | 0 | |u http://dx.doi.org/10.1364/OE.427023 |3 Volltext |
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