Registration of retinal sequences from new video-ophthalmoscopic camera

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26220%2F16%3APU119245" target="_blank" >RIV/00216305:26220/16:PU119245 - isvavai.cz</a>

Result on the web

<a href="http://biomedical-engineering-online.biomedcentral.com/articles/10.1186/s12938-016-0191-0" target="_blank" >http://biomedical-engineering-online.biomedcentral.com/articles/10.1186/s12938-016-0191-0</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1186/s12938-016-0191-0" target="_blank" >10.1186/s12938-016-0191-0</a>

Result language

angličtina

Original language name

Registration of retinal sequences from new video-ophthalmoscopic camera

Original language description

Analysis of fast temporal changes on retinas has become an important part of diagnostic video-ophthalmology. It enables investigation of the hemodynamic processes in retinal tissue, e.g. blood-vessel diameter changes as a result of blood-pressure variation, spontaneous venous pulsation influenced by intracranial-intraocular pressure difference, blood-volume changes as a result of changes in light reflection from retinal tissue, and blood flow using laser speckle contrast imaging. For such applications, image registration of the recorded sequence must be performed. Here we use a new non-mydriatic video-ophthalmoscope for simple and fast acquisition of low SNR retinal sequences. We introduce a novel, two-step approach for fast image registration. The phase correlation in the first stage removes large eye movements. Lucas-Kanade tracking in the second stage removes small eye movements. We propose robust adaptive selection of the tracking points, which is the most important part of tracking-based approaches. We also describe a method for quantitative evaluation of the registration results, based on vascular tree intensity profiles.

Czech name

—

Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

20201 - Electrical and electronic engineering

Project

—

Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2016

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

BIOMED ENG ONLINE

ISSN

1475-925X

e-ISSN

—

Volume of the periodical

15

Issue of the periodical within the volume

57

Country of publishing house

GB - UNITED KINGDOM

Number of pages

17

Pages from-to

1-17

UT code for WoS article

000376342000001

EID of the result in the Scopus database

2-s2.0-84974603368