Advances in laser speckle flowgraphy technique

Q4 Physics and Astronomy

光学技术 Pub Date : 2014-01-01 DOI:10.3788/GXJS20144001.0021

孔. K. Ping, 杨. Y. Hui, 郑. Z. Gang, 谢银月 Xie Yin-yue, 林为民 Lin Weimin

引用次数: 1

Abstract

Laser Speckle Flowgraphy(LSFG),a full field optical imaging method without scanning in biomedical field,has become a novel technique for monitoring dynamic fluctuation of blood flow owning to its outstanding features. Its validity has been demonstrated by many clinical instances in the recent twenty years.Research to date on the LSFG has led to improvements in the theory and diversity of systems.The development and the basic theory of LSFG is introduced systematically,and state-of-the-art of study on theory and system design are reviewed and illustrated by reference to recent publications.The model of velocity distribution,the algorithm of contrast analysis,the match of the size of speckle and the pixel,and the exposure time are discussed in detail.

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激光散斑流成像技术研究进展

激光散斑血流成像(Laser Speckle flowography, LSFG)是生物医学领域一种无需扫描的全视场光学成像方法，以其突出的特点成为监测血流动态波动的一种新技术。近二十年来，其有效性已被许多临床实例所证实。迄今为止，对LSFG的研究已经导致了理论和系统多样性的改进。系统地介绍了LSFG的发展和基本理论，并对理论和系统设计的研究现状进行了回顾和说明。详细讨论了速度分布模型、对比度分析算法、散斑与像素大小的匹配以及曝光时间。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

光学技术 Physics and Astronomy-Atomic and Molecular Physics, and Optics

CiteScore

0.60

自引率

0.00%

发文量

6699

期刊介绍： The predecessor of Optical Technology was Optical Technology, which was founded in 1975. At that time, the Fifth Ministry of Machine Building entrusted the School of Optoelectronics of Beijing Institute of Technology to publish the journal, and it was officially approved by the State Administration of Press, Publication, Radio, Film and Television for external distribution. From 1975 to 1979, the magazine was named Optical Technology, a quarterly with 4 issues per year; from 1980 to the present, the magazine is named Optical Technology, a bimonthly with 6 issues per year, published on the 20th of odd months. The publication policy is: to serve the national economic construction, implement the development of the national economy, serve production and scientific research, and implement the publication policy of "letting a hundred flowers bloom and a hundred schools of thought contend".