Publication result detail

Design of an experimental laser speckle contrast imaging system and image evaluation

HESKO, B.; KOLÁŘ, R.; HARABIŠ, V.

Original Title

Design of an experimental laser speckle contrast imaging system and image evaluation

English Title

Design of an experimental laser speckle contrast imaging system and image evaluation

Type

Scopus Article

Original Abstract

Laser speckle contrast imaging (LSCI) is a noninvasive method, which uses scattered light to estimate the flow of a fluid containing scatterers. Thus, it can be especially used to estimate blood flow. Laser light is randomly scattered on the tissue and this refracted light interfere with reflected light, giving birth to laser speckle noise. As the light scatters on moving red blood cells, the speckle pattern is blurred due to the exposition time. This blurring is a function of velocity which can be estimated from the degree of blur, termed as speckle contrast. Therefore, blood cells act like contrast agent, outlining blood vessels. The simple setup, unnecessary contrast agent and unharming nature are making LSCI a popular tool for studying blood flow dynamics and vascular structure. This paper presents a new, simple experimental setup and image processing methods to treat laser speckle images aiming to estimate relative blood flow and vascular structure.

English abstract

Laser speckle contrast imaging (LSCI) is a noninvasive method, which uses scattered light to estimate the flow of a fluid containing scatterers. Thus, it can be especially used to estimate blood flow. Laser light is randomly scattered on the tissue and this refracted light interfere with reflected light, giving birth to laser speckle noise. As the light scatters on moving red blood cells, the speckle pattern is blurred due to the exposition time. This blurring is a function of velocity which can be estimated from the degree of blur, termed as speckle contrast. Therefore, blood cells act like contrast agent, outlining blood vessels. The simple setup, unnecessary contrast agent and unharming nature are making LSCI a popular tool for studying blood flow dynamics and vascular structure. This paper presents a new, simple experimental setup and image processing methods to treat laser speckle images aiming to estimate relative blood flow and vascular structure.

Keywords

LSCI, laser speckle contrast imaging, blood flow, speckle noise

Key words in English

LSCI, laser speckle contrast imaging, blood flow, speckle noise

Authors

HESKO, B.; KOLÁŘ, R.; HARABIŠ, V.

RIV year

2018

Released

12.12.2017

Publisher

Clinician and Technology journal

Location

Prague

ISBN

0301-5491

Periodical

Lékař a technika

Volume

47

Number

3

State

Czech Republic

Pages from

101

Pages to

107

Pages count

7

URL

https://ojs.cvut.cz/ojs/index.php/CTJ/article/view/4687

BibTex

@article{BUT143960,
  author="Branislav {Hesko} and Radim {Kolář} and Vratislav {Harabiš}",
  title="Design of an experimental laser speckle contrast imaging system and image evaluation",
  journal="Lékař a technika",
  year="2017",
  volume="47",
  number="3",
  pages="101--107",
  issn="0301-5491",
  url="https://ojs.cvut.cz/ojs/index.php/CTJ/article/view/4687"
}