Extended focused imaging of a microparticle field with digital holographic microscopy

被引：57

作者：

Antkowiak, Maciej ^{[1
]}

Callens, Natacha ^{[1
]}

Yourassowsky, Catherine ^{[1
]}

Dubois, Frank ^{[1
]}

机构：

[1] Univ Libre Bruxelles, Micrograv Res Ctr, B-1050 Brussels, Belgium

来源：

OPTICS LETTERS | 2008年 / 33卷 / 14期

关键词：

D O I：

10.1364/OL.33.001626

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present a numerical technique for extended focused imaging and three-dimensional analysis of a microparticle field observed in a digital holographic microscope working in transmission. The three-dimensional localization of objects is performed using the local focus plane determination method based on the integrated amplitude modulus. We apply the refocusing criterion locally for each pixel, using small overlapping windows, to obtain the depth map and a synthetic image in which all objects are refocused independent from their refocusing distance. A successful application of this technique in the analysis of the microgravity particle flow experiment is presented. (c) 2008 Optical Society of America.

引用

页码：1626 / 1628

页数：3

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