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多次移位成像降低噪声对反演解析法的影响
Research on Reducing Noise Influence upon Inversion Analysis by Multi-shift Imaging
【摘要】 提出了通过多次移位成像增加线性方程组超定性的方法降低噪声对反演解析法提高CCD成像分辨率的影响。仿真实验说明,运用该方法在不同提高倍数的情况下均能有效地降低噪声的影响程度。提高倍数越大,其效果越明显。
【Abstract】 In order to reduce the noise influence upon inversion analysis for the enhancement of CCD resolution,the approach of multishit imaging to enhance the overdetermination of linear systems was proposed in this paper.The simulation examples show this approach can reduce the noise influence for any enhancemet ratio.Its also proved that the approach is more effective when the enhancemet ratio is high.
【关键词】 高分辨率;
图像重构;
反演解析;
噪声影响评价;
多次移位成像;
【Key words】 high resolution; image reconstruction; inversion analysis; noise influence evaluation; multi-shift imaging;
【Key words】 high resolution; image reconstruction; inversion analysis; noise influence evaluation; multi-shift imaging;
【基金】 浙江大学信息学院院长基金的资助。
- 【文献出处】 光电子·激光 ,Journal of Optoelectronics.laser , 编辑部邮箱 ,2003年03期
- 【分类号】TP391.41
- 【被引频次】8
- 【下载频次】63