Speckle averaging for optical coherence tomography by vibration of a thin water film

被引：1

作者：

Park, BH ^{[1
]}

Pierce, MC ^{[1
]}

Cense, B ^{[1
]}

de Boer, JF ^{[1
]}

机构：

[1] Massachusetts Gen Hosp, Wellman Labs Photomed, Boston, MA 02114 USA

来源：

COHERENCE DOMAIN OPTICAL METHODS AND OPTICAL COHERENCE TOMOGRAPHY IN BIOMEDICINE VIII | 2004年 / 5316卷

关键词：

speckle; reduction; OCT;

D O I：

10.1117/12.531400

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

A novel method for reducing the appearance of speckle within a single image acquisition in optical coherence tomography is presented. Local variations in the optical path length of beamlets within the beam diameter are introduced by vibrating a thin water film placed in a collimated section of the sample arm beam path. Consequent averaging of small numbers of adjacent depth scans results in a reduced appearance of speckle with no change in the axial point spread function. Reduced speckle images of a layered agar sample and thin reflective surfaces are shown.

引用

页码：391 / 396

页数：6

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