Depth from rotating point spread functions

被引：4

作者：

Greengard, A ^{[1
]}

Schechner, YY ^{[1
]}

Piestun, R ^{[1
]}

机构：

[1] Univ Colorado, Dept Elect & Comp Engn, Boulder, CO 80309 USA

来源：

OPTICAL INFORMATION SYSTEMS II | 2004年 / 5557卷

关键词：

passive ranging; rotating beams; depth of field; depth of focus;

D O I：

10.1117/12.560169

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

We present a method for passive ranging with incoherent light. The scheme uses a single optical channel and is particularly suitable for locating and ranging particles. Our aim is to create an optical system with increased discrimination among depth planes as compared to classical clear aperture solutions. We thus propose a criterion for evaluating a general point spread function for use in passive ranging. Then, we show that rotating point spread functions are. good according to this criterion. An experimental realization of the point spread function by use of a computer-generated hologram is presented as well as a simulation of its depth discrimination.

引用

页码：91 / 97

页数：7

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