Detail publikace
Multifocal Image Processing Multifocal Image Processing Multifocal Image Processing
MARTIŠEK, D. DRUCKMÜLLEROVÁ, H.
Český název
Multifocal Image Processing Multifocal Image Processing Multifocal Image Processing
Anglický název
Multifocal Image Processing
Typ
článek v časopise - ostatní, Jost
Jazyk
en
Originální abstrakt
In this paper, we present a processing method for digital images from an optical microscope. High-pass type filters are generally used for image focusing. They enhance the high spatial frequencies. These filters are not appropriate if the lack of sharpness is caused by other factors. On the other hand, the (un)sharpness can be taken as an advantage and can be used for studies of the spatial distribution of structures in the observed scene. In many cases, it is possible to construct a three-dimensional model of the observed object by analyzing image sharpness. Interesting two-dimensional images and a three-dimensional model can be obtained by applying the theory for multifocal image processing described in this contribution. We improve the quality of the results compared to the previous methods using the Fourier transform for the analysis of local sharpness in the images.
Český abstrakt
In this paper, we present a processing method for digital images from an optical microscope. High-pass type filters are generally used for image focusing. They enhance the high spatial frequencies. These filters are not appropriate if the lack of sharpness is caused by other factors. On the other hand, the (un)sharpness can be taken as an advantage and can be used for studies of the spatial distribution of structures in the observed scene. In many cases, it is possible to construct a three-dimensional model of the observed object by analyzing image sharpness. Interesting two-dimensional images and a three-dimensional model can be obtained by applying the theory for multifocal image processing described in this contribution. We improve the quality of the results compared to the previous methods using the Fourier transform for the analysis of local sharpness in the images.
Anglický abstrakt
In this paper, we present a processing method for digital images from an optical microscope. High-pass type filters are generally used for image focusing. They enhance the high spatial frequencies. These filters are not appropriate if the lack of sharpness is caused by other factors. On the other hand, the (un)sharpness can be taken as an advantage and can be used for studies of the spatial distribution of structures in the observed scene. In many cases, it is possible to construct a three-dimensional model of the observed object by analyzing image sharpness. Interesting two-dimensional images and a three-dimensional model can be obtained by applying the theory for multifocal image processing described in this contribution. We improve the quality of the results compared to the previous methods using the Fourier transform for the analysis of local sharpness in the images.
Klíčová slova česky
multifocal image, 3-D reconstruction, focusing criteria, Fourier transform
Klíčová slova anglicky
multifocal image, 3-D reconstruction, focusing criteria, Fourier transform
Rok RIV
2014
Vydáno
28.05.2014
Nakladatel
Institute of Mathematics, Faculty of Mechanical Engineering, Brno University of Technology
Místo
Brno
ISSN
1805-3610
Ročník
3
Číslo
1
Strany od–do
77–90
Počet stran
14
BIBTEX
@article{BUT107926,
author="Dalibor {Martišek} and Hana {Druckmüllerová},
title="Multifocal Image Processing",
year="2014",
volume="3",
number="1",
month="May",
pages="77--90",
publisher="Institute of Mathematics, Faculty of Mechanical Engineering, Brno University of Technology",
address="Brno",
issn="1805-3610"
}