Item type |
紀要論文(ELS) / Departmental Bulletin Paper(1) |
公開日 |
1999-09-01 |
タイトル |
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タイトル |
Camera calibration by an integrating sphere for the auroral tomography observation |
言語 |
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言語 |
eng |
資源タイプ |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
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資源タイプ |
departmental bulletin paper |
ID登録 |
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ID登録 |
10.15094/00006280 |
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ID登録タイプ |
JaLC |
ページ属性 |
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内容記述タイプ |
Other |
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内容記述 |
P(論文) |
著者名(英) |
Urashima, Akira
Aso, Takehiko
Ejiri, Masaki
Steen, Ake
Brandstrom, U.
Gustavsson, B.
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著者所属(英) |
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en |
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Department of Electrical Engineering, Kyoto University/National Institute of Polar Research/National Institute of Polar Research/Swedish Institute of Space Physics/Swedish Institute of Space Physics/Swedish Institute of Space Physics |
抄録(英) |
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内容記述タイプ |
Other |
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内容記述 |
Auroral tomography is a technique to reconstruct three-dimensional (3 D) luminous structure from multiple two-dimensional (2D) images of aurora. The reconstructed auroral luminous structure can provide useful information such as altitude profiles and vortex configuration. In order to obtain the absolute volume emission rate of the aurora distribution, it is essential to have the absolute sensitivity calibration of imaging by formulating the relation between pixel values and absolute brightness of corresponding direction of each pixel. The relation between pixel value and brightness is formulated and calculated from the absolute sensitivity calibration. We took the flat-field images of the integrating sphere calibration standard at National Institute of Polar Research using one camera system, which was installed at Merasjarvi (one of the ALIS observing site, ALIS is the acronym of Auroral Large Imaging System, which is a multi-station ground-based optical observing network). National Institute of Polar Research, Japan and Swedish Institute of Space Physics in Kiruna, Sweden have carried out collaborative observations for auroral tomography under ALIS. The sensitivity calibration result is applied to the reconstruction of volume emission rate distribution from the tomographic images observed by ALIS on March 1, 1998. |
雑誌書誌ID |
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収録物識別子タイプ |
NCID |
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収録物識別子 |
AA11397422 |
書誌情報 |
Advances in polar upper atmosphere research
巻 13,
p. 79-88,
発行日 1999-09
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出版者 |
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出版者 |
National Institute of Polar Research |