光学精密工程2012，Vol.20Issue(5)：1041-1047,7.DOI:10.3788/OPE.20122005.1041
遥感相机焦面CCD机械拼接中重叠像元数的确定
Computation of overlapping pixels of mechanical assembly CCD focal planes in remote sensing cameras
摘要
Abstract
According to the imaging gaps caused by scrolling imaging in the conventional assembled focal plane for a push-broom camera, a mechanical assembling method with uneven overlapping pixels was proposed. Firstly, a model was established to simulate the imaging process when the camera was scrolled. Then, the reason that the gaps appear was analyzed, and a mathematical formula for the gaps between the CCD viewing fields at a certain scrolling angle was derived. Accordingly, the allowable minimum quantity of the overlapping pixels between every two CCDs was derived as well. On these bases, a function of overlapping pixels of images was given for subsequent software programs to eliminate the superfluous pixels and to realize the gapless assembly. Analysis indicates that the error ε of this assembling method is less than one pixel, which satisfies |e/D|<l. Finally, an example was given.关键词
遥感相机/焦平面/CCD拼接/前后摆/重叠像元Key words
remote sensing cameras focal plane/ CCD assembly/ scroll/ overlapping pixel分类
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吕恒毅,刘杨,郭永飞..遥感相机焦面CCD机械拼接中重叠像元数的确定[J].光学精密工程,2012,20(5):1041-1047,7.基金项目
国家自然科学基金资助项目(No.61036015) （No.61036015）
