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| 无光照条件下CMOS图像传感器噪声分析 | |
| 引用本文： | 原玉磊,邹亮,艾金鹏.无光照条件下CMOS图像传感器噪声分析[J].测绘工程,2011,20(4):31-34. |
| 作者姓名： | 原玉磊 邹亮 艾金鹏 |
| 作者单位： | 1. 信息工程大学测绘学院,河南郑州,450052 2. 73603部队,江苏南京,210049 3. 72946部队,山东淄博,255020 |
| 摘 要： | 在无光照条件下,对采用CMOS图像传感器的尼康D90相机在不同的曝光时间下进行拍摄实验,分析CMOS图像传感器在不同曝光时间下的暗电流噪声以及系统噪声在传感器像面上的空间分布。得出如下结论：系统噪声并没有随曝光时间增加而增大的趋势,因此,系统的暗电流噪声比较小;而整体噪声在不同的曝光时间下,都有在空间分布上有像面外围较大而像面中间较小的情况,根据该分布给出计算不同位置像素系统噪声大小的公式。 |
| 关 键 词： | CMOS图像传感器 无光照 图像噪声 暗电流噪声 空间分布 |
Analysis of CMOS image sensor noise without outside illumination |
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| YUAN Yu-lei,ZOU Liang,AI Jin-peng.Analysis of CMOS image sensor noise without outside illumination[J].Engineering of Surveying and Mapping,2011,20(4):31-34. | |
| Authors: | YUAN Yu-lei ZOU Liang AI Jin-peng |
| Institution: | YUAN Yu-lei1,ZOU Liang2,AI Jin-peng3(1.Institute of Surveying and Mapping,Information Engineering University,Zhengzhou 450052,China,2.73603 Troops,Nanjing 210049,3.72946 Troops,Zibo 255020,China) |
| Abstract: | The noises of images form D90 camera using CMOS image sensor in different exposure times and without outside illumination are analyzed.The system noise does not increase according to the increased exposure time,so the dark current is very low.And system noise in the center of the CMOS image sensor is lower than in the marginal area.And the formula to calculate the pixel's noise according to the coordinate is presented. |
| Keywords: | CMOS image sensor without outside illumination image noise dark current noise spatial distribution |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |