J 2001

Theoretical versus experimental resolution in optical microscopy

KOZUBEK, Michal

Basic information

Original name

Theoretical versus experimental resolution in optical microscopy

Authors

KOZUBEK, Michal (203 Czech Republic, guarantor, belonging to the institution)

Edition

Microscopy research and technique, USA, Wiley-Liss, 2001, 1059-910X

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

20200 2.2 Electrical engineering, Electronic engineering, Information engineering

Country of publisher

United States of America

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 2.165

RIV identification code

RIV/00216224:14330/01:00004204

Organization unit

Faculty of Informatics

UT WoS

000168393000008

Keywords in English

resolution; confocal microscopy; wide-field microscopy; image processing; fluorescent bead

Tags

International impact, Reviewed
Změněno: 29/1/2021 18:32, prof. RNDr. Michal Kozubek, Ph.D.

Abstract

V originále

The aim of this article is to compare experimental resolution under different conditions with theoretical resolution predicted using electromagnetic diffraction theory. Imaging properties of fluorescent beads of three different diameters (0.1 mum, 0.2 mum, and 0.5 mum) as well as imaging properties of four different fluorescence-stained DNA targets (ABL gene, BCR gene, centromere 6, and centromere 17) are studied. It is shown how the dependence of the resolution on object size varies with wavelength (520 nm versus 580 nm), type of microscopy (wide-field, confocal using Nipkow disk, confocal laser scanning) and basic image processing steps (median and gaussian filters). Furthermore, specimen influence on the resolution was studied (the influence of embedding medium, coverglass thickness, and depth below the coverglass). Both lateral and axial resolutions are presented. The results clearly show that real objects are far from being points and that experimental resolution is often much worse than the theoretical one. Although the article concentrates on fluorescence imaging using high NA objectives, similar dependence can also be expected for other optical arrangements.

Links

GA202/99/P008, research and development project
Name: Využití analýzy obrazu při studiu struktury interfázního jádra
Investor: Czech Science Foundation, Image analysis in the study of interphase nucleus structure
MSM 143300002, plan (intention)
Name: Využití počítačové analýzy obrazu v optické mikroskopii
Investor: Ministry of Education, Youth and Sports of the CR, Application of computer image analysis in optical microscopy
VS97031, research and development project
Name: Využití analýzy obrazu při studiu mechanismů vzniku, v diagnostice a pro prevenci závažných onemocnění člověka
Investor: Ministry of Education, Youth and Sports of the CR, Image analysis in the study of mechanisms of induction, in diagnosis and for prevention of deleterious human diseases