| CCD光斑质心算法的误差分析 |
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| 引用本文： | 金占雷. CCD光斑质心算法的误差分析[J]. 航天返回与遥感, 2011, 32(1): 38-44 |
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| 作者姓名： | 金占雷 |
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| 作者单位： | 北京空间机电研究所,北京,100076 |
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| 基金项目： | 中国空间技术研究院自主研发课题 |
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| 摘 要： | 文章建立了CCD噪声和像元尺寸对质心算法影响的误差模型.模型表明,当CCD上光斑的束腰ω<0.1个像元时,质心算法的误差大于0.28个像元;当束腰ω>0.5个像元时,像元尺寸对灰度质心算法的影响可忽略不计,影响质心算法的主要因素是CCD随机噪声误差.在ω>0.5个像元的前提下,光斑尺寸越小,质心算法的精度越高.实验与理...
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| 关 键 词： | 质心算法 像元尺寸 灰度均化效应 误差红外相机 空间遥感 |
Error Analysis of Centroid Algorithm Based on CCD |
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| Jin Zhanlei. Error Analysis of Centroid Algorithm Based on CCD[J]. Spacecraft Recovery & Remote Sensing, 2011, 32(1): 38-44 |
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| Authors: | Jin Zhanlei |
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| Affiliation: | Jin Zhanlei (Beijing Institute of Space Mechanics & Electricity,Beijing 100076,China) |
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| Abstract: | A model is established among CCD pixels size,random noise and precision of centroid algorithm. The model indicates that the precision of centroid algorithm is bigger than 0.28 pixels when girdling of Gauss facula is less than 0.1 pixel,gray leveling effect can be neglected when girdling of Gauss facula is greater than 0.5 pixels,and random noise of CCD is the major error source of centroid algorithm.The experimental results agree with the theoretical analysis well,and it proves that the theoretical analysis is right. |
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| Keywords: | Centroid algorithm Pixel size Gray leveling effect Precision Infrared camera Space remote sensing |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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