| 图象中噪声的统计特性和模型 |
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| 引用本文： | 曾文庆,杨为民,张柏荣.图象中噪声的统计特性和模型[J].天文研究与技术,1993(2). |
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| 作者姓名： | 曾文庆 杨为民 张柏荣 |
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| 作者单位： | 中国科学院云南天文台，中国科学院云南天文台，中国科学院云南天文台 昆明 650011，昆明 650011，昆明 650011 |
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| 摘 要： | 本文描述了图象中的噪声特性,着重讨论了与信号有关的噪声的模型及其统计特性,特别是颗粒噪粒噪声和光电散粒噪声。指出磁带记录噪声是一种与信号有关的噪声。在Naderi和Sawchuk图象中噪声模型的基础上,针对CCD摄象机的图象数字化,提出了底片数字化图象的模糊和退化模型。
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| 关 键 词： | 图象复原 统计分析 图象处理 噪声 |
Models and Statistical Characteristics of the Noise in Images |
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| Zeng Wenqing,Yang Weimin,Zhang Bairong.Models and Statistical Characteristics of the Noise in Images[J].Astronomical Research & Technology,1993(2). |
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| Authors: | Zeng Wenqing Yang Weimin Zhang Bairong |
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| Abstract: | The statistical characteristics of the noise in images are reviewed comprehensively in this paper.The models and statistical characteristics of the realistic signal-dependent noise especially the film grain noise and photoelectronic shot noise,are emphatically discussed.It is pointed out that the noise from the tape record is one of the signaldependent noises.Based on the model of the noise in the Naderi and Sawchuk image,a fuzzy and egenerate model of the film,digitization image is proposed to counter the image digitization of the CCD camera. |
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| Keywords: | Image reconstruction Statistical analysis Image processing Noise |
| 本文献已被 CNKI 等数据库收录！ |
