Blind Source Separation of Different Retinal Pulsatile Patterns from Simultaneous Long-term Binocular Ophthalmoscopic Video-records
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26220%2F19%3APU133089" target="_blank" >RIV/00216305:26220/19:PU133089 - isvavai.cz</a>
Result on the web
<a href="https://ieeexplore.ieee.org/document/8857560" target="_blank" >https://ieeexplore.ieee.org/document/8857560</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1109/EMBC.2019.8857560" target="_blank" >10.1109/EMBC.2019.8857560</a>
Alternative languages
Result language
angličtina
Original language name
Blind Source Separation of Different Retinal Pulsatile Patterns from Simultaneous Long-term Binocular Ophthalmoscopic Video-records
Original language description
Optical imaging of retinal hemodynamic function is an important part of ophthalmologic research. Development and inventing of imaging devices and data analysis methods are both just in progress. The current study innovatively implements two blind source separation (BSS) techniques (i.e. spatial Principal Component Analysis – sPCA; and spatial Independent Component Analysis – sICA) in application of an automatic detection and segmentation of a distinct Optic Disc (OD) areas with different hemodynamic properties from a simultaneous binocular video-ophthalmoscopic records. Both methods detected 3 different spatial patterns mostly symmetric over both eyes stable and reproducible over investigated participants, i.e. central Spontaneous Vessel Pulsations (SVPs), inner OD intensity pulsations and other OD pulsations. Dynamics of all mentioned patterns has a periodic character with similar main frequency (possibly corresponding to subject-specific heart rate) but shifted phase decreasing patterns’ mutual high crosscorrelations. The sICA estimates a higher rate of phase shifts than sPCA.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
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OECD FORD branch
20601 - Medical engineering
Result continuities
Project
—
Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Proceedings of IEEE Engineering in Medicine and Biology Conference
ISBN
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ISSN
1557-170X
e-ISSN
—
Number of pages
4
Pages from-to
4729-4732
Publisher name
Neuveden
Place of publication
neuveden
Event location
Berlin
Event date
Jul 23, 2019
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
000557295305037