| CMOS图像传感器插补环节引入噪声及对噪声传播的影响 |
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| 引用本文： | 李轩,徐宏宇,孙克梅,郎瑶.CMOS图像传感器插补环节引入噪声及对噪声传播的影响[J].沈阳航空工业学院学报,2011,28(1):33-38. |
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| 作者姓名： | 李轩 徐宏宇 孙克梅 郎瑶 |
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| 作者单位： | 沈阳航空航天大学,电子信息工程学院,辽宁,沈阳,110136 |
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| 摘 要： | 研究了CMOS图像传感器图像插补引入色差噪声及对噪声传播产生的影响，建立了问题分析模型，得到规律性的结论：插补本身引入色差噪声，在图像边缘处产生伪彩色及拉链效应，不同插补方法引入不同结构的噪声；插补将各彩色通道不相关噪声变为相关噪声；当输入噪声水平较低时插补产生的伪彩色占主导地位，但噪声变大时，噪声传播将占主导地位。本文结论对CMOS图像传感器设计具有指导意义。
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| 关 键 词： | CMOS图像传感器 图像插补 噪声传播 CFA |
Introduced Noise and Propagation by CMOS Image Sensor Interpolating |
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| LI Xuan,XU Hong-yu,SUN Ke-mei,LANG Yao.Introduced Noise and Propagation by CMOS Image Sensor Interpolating[J].Journal of Shenyang Institute of Aeronautical Engineering,2011,28(1):33-38. |
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| Authors: | LI Xuan XU Hong-yu SUN Ke-mei LANG Yao |
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| Institution: | LI Xuan,XU Hong-yu,SUN Ke-mei,LANG Yao(School of Electronics Information Engineering,Shenyang Aerospace University,Liaoning Shenyang 110136) |
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| Abstract: | This paper has studied introduced noise and its propagation by CMOS image sensor interpolating.By establishing problem analysis model,the regular conclusion has been obtained.The interpolation process introduces the chromatic aberration noise,causing false color and the zipper effect in the image edge.Different interpolation method introduces noises of different structures;the interpolation makes non-correlated noise at different colored channel become the related noise.When the input noise level is lower,f... |
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| Keywords: | CMOS image sensor image interpolation noise propagation CFA |
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