About: Numerical refocusing in digital holographic microscopy with extended-sources illumination

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Numerical refocusing can be seen as a method of compensating the defocus aberration based on deconvolution by inverse filtering [1] in digital holographic microscopy (DHM). It is well-understood in cases when a coherent (ie point and monochromatic) light source such as a collimated laser beam is used [2]. This paper extends the theory to the case of illumination by a quasi-monochromatic extended (spatially incoherent) source. Refocusing methods for spatially incoherent illumination are derived and benefits of this type of illumination are demonstrated. We have proved both theoretically and experimentally that coherent-based refocusing gives incorrect results for extended-source illumination, while results obtained using the newly derived method are correct. Numerical refocusing can be seen as a method of compensating the defocus aberration based on deconvolution by inverse filtering [1] in digital holographic microscopy (DHM). It is well-understood in cases when a coherent (ie point and monochromatic) light source such as a collimated laser beam is used [2]. This paper extends the theory to the case of illumination by a quasi-monochromatic extended (spatially incoherent) source. Refocusing methods for spatially incoherent illumination are derived and benefits of this type of illumination are demonstrated. We have proved both theoretically and experimentally that coherent-based refocusing gives incorrect results for extended-source illumination, while results obtained using the newly derived method are correct. (en)
Title	Numerical refocusing in digital holographic microscopy with extended-sources illumination Numerical refocusing in digital holographic microscopy with extended-sources illumination (en)
skos:prefLabel	Numerical refocusing in digital holographic microscopy with extended-sources illumination Numerical refocusing in digital holographic microscopy with extended-sources illumination (en)
skos:notation	RIV/00216305:26620/13:PU106006!RIV14-MPO-26620___
http://linked.open...avai/riv/aktivita	P S
http://linked.open...avai/riv/aktivity	P(ED1.1.00/02.0068), P(FR-TI4/660), P(TE01020229), S
http://linked.open...iv/cisloPeriodika	23
http://linked.open...vai/riv/dodaniDat	2014
http://linked.open...aciTvurceVysledku	Týč, Matěj Henzlová, Michala Chmelík, Radim Kvasnica, Lukáš
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Vysoké učení technické v Brně / Středoevropský technologický institut
http://linked.open...dnocenehoVysledku	92572
http://linked.open...ai/riv/idVysledku	RIV/00216305:26620/13:PU106006
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Digital holography, microscopy, deconvolution, partial coherence in imaging, three-dimensional microscopy (en)
http://linked.open.../riv/klicoveSlovo	microscopy deconvolution three-dimensional microscopy Digital holography partial coherence in imaging
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[0FEB8D64C1D4]
http://linked.open...i/riv/nazevZdroje	OPTICS EXPRESS
http://linked.open...in/vavai/riv/obor	BH
http://linked.open...ichTvurcuVysledku	4 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...vavai/riv/projekt	Center of digital optics Central european institute of technology *Multimodal holographic microscope
http://linked.open...UplatneniVysledku	2013
http://linked.open...v/svazekPeriodika	21
http://linked.open...iv/tvurceVysledku	Chmelík, Radim Kvasnica, Lukáš Slabá, Michala Týč, Matěj
issn	1094-4087
number of pages	14 (xsd:int)
http://localhost/t...ganizacniJednotka	26620

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