| Focal Plane Image Assembly of Subpixel |
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| 引用本文： | ZHONG Sidong MEI Tiancan 等. Focal Plane Image Assembly of Subpixel[J]. 地球空间信息科学学报, 2002, 5(4): 55-59. DOI: 10.1007/BF02826477 |
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| 作者姓名： | ZHONG Sidong MEI Tiancan 等 |
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| 作者单位： | professor,SchoolofElectronicInformation,Wuhanuniversity,129LouyuRoad,Wuhan430079,China |
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| 基金项目： | ProjectsupportedbyVisitingScholarFoundationofKeyLabinUniversity (No.0 0 1 1 3) |
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| 摘 要： | This paper describes the scanning assembly principle and construction of scanning assembly sample.The factors that affect assembly accuracy are analyzed.Threre are two steps in CCD focal plane scanning assembly.The first is rough assembly,In this paper,the moire fringe is introduced in judging assembly accuracy directly and accurately.The equation for optical transmission characterisitcs of CCD Moire fringes is presented.The measurement of Moire fringes can be completed when some conditions are satisfied.2D-assembly error can be obtained by using digital correlation filtering technique,Finally,the result of focal plane scanning assembly is presented.The result is in good accordance with theory.
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| 关 键 词： | 焦平面图像 分辨率 扫描 光学转换 莫尔条纹 电荷耦合器件 CCD摄象传感器 |
| 收稿时间： | 2005-08-31 |
Focal plane image assembly of subpixel |
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| Zhong Sidong,Mei Tiancan,Shi Zhongchao. Focal plane image assembly of subpixel[J]. Geo-Spatial Information Science, 2002, 5(4): 55-59. DOI: 10.1007/BF02826477 |
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| Authors: | Zhong Sidong Mei Tiancan Shi Zhongchao |
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| Affiliation: | ZHONG Sidong MEI Tiancan SHI Zhongchao |
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| Abstract: | This paper describes the scanning assembly principle and construction of scanning assembly sample. The factors that affect assembly accuracy are analyzed. There are tow steps in CCD focal plane scanning assembly. The first is rough assembly, and the second is accurate assembly. In this paper, the moiré fringe is introduced in judging assembly accuracy directly and accurately. The equation for optical transmission characteristics of CCD Moiré fringes is presented. The measurement of Moiré fringes can be completed when some conditions are satisfied. 2D-assembly error can be obtained by using digital correlation filtering technique. Finally, the result of focal plane scanning assembly is presented. The result is in good accordance with theory. Project supported by Visiting Scholar Foundation of Key Lab in University (No. 00113). |
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| Keywords: | CCD focal plane scanning assembly Moiré fringe judging accuracy |
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