A new dynamic endoscopic holographic interferometer for in-vivo medical imaging metrology

被引：9

作者：

von Bally, G ^{[1
]}

Kemper, B ^{[1
]}

Merker, A ^{[1
]}

Lai, S ^{[1
]}

机构：

[1] Univ Munster, Biophys Lab, D-48129 Munster, Germany

来源：

18TH CONGRESS OF THE INTERNATIONAL COMMISSION FOR OPTICS: OPTICS FOR THE NEXT MILLENNIUM, TECHNICAL DIGEST | 1999年 / 3749卷

关键词：

D O I：

10.1117/12.354801

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A novel Electronic-Speckle-Pattern-Interferometer (ESPI) which is based on an endoscope camera system can be applied to handheld examinations for in-vivo minimal-invasive diagnostics. Optical fibers, endoscopic optics and an amplitude modulated cw-laser are used for illumination. A CCD-camera in combination with a fast frame grabber-system allows dynamic "on line"-image subtractions up to a frequency of 25 Hz with high fringe contrast. The influence of rigid body motions on the interference fringe pattern is compensated by a new digital processing method based on Fourier algorithms.

引用

页码：393 / 394

页数：2