TV HOLOGRAPHY - SPATIAL-RESOLUTION AND SIGNAL RESOLUTION IN DEFORMATION ANALYSIS

被引：6

作者：

VIKHAGEN, E

机构：

[1] Norwegian Institute of Technology, Physics Division, Applied Optics Group, Trondheim

来源：

APPLIED OPTICS | 1991年 / 30卷 / 04期

关键词：

D O I：

10.1364/AO.30.000420

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We discuss the resolution limits of digital TV holography used for nondestructive testing. A phase shifting technique converts the interferometric information into a phase distribution image. Spatial low pass filtering improves the phase accuracy at the expense of spatial resolution. Experiments show that spatial details down to 2.5 x 2.5 pixels and displacement below lambda/100 may be resolved.

引用

页码：420 / 425

页数：6

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