基于旋转照明光的数字全息相干噪声抑制(英文)

被引:2
作者
李艳
肖文
潘锋
戎路
机构
[1] 北京航空航天大学精密光机电一体化技术教育部重点实验室
关键词
相干噪声抑制; 多离轴数字全息图; 旋转照明光; 数字图像自相关配准方法;
D O I
暂无
中图分类号
TP391.41 [];
学科分类号
080203 ;
摘要
提出一种数字全息相干噪声抑制方法。首先在照明光方位角给定的前提下,通过在极向平面内连续旋转照明光,实现在多角度照明条件下记录离轴数字全息图。然后对所获得的全息图分别重构,同时利用倾斜相差补偿算法和数字图像自相关配准方法分别补偿再现像的相位倾斜及横向偏移。最后将重构像进行非相干叠加,从而有效抑制再现像的相干噪声。实验结果及相关统计评价数据皆验证了该方法的有效性。
引用
收藏
页码:1345 / 1350
页数:6
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