Publication detail

Multifocal Image Processing

MARTIŠEK, D. DRUCKMÜLLEROVÁ, H.

Original Title

Multifocal Image Processing

Type

journal article - other

Language

English

Original Abstract

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.

Keywords

multifocal image, 3-D reconstruction, focusing criteria, Fourier transform

Authors

MARTIŠEK, D.; DRUCKMÜLLEROVÁ, H.

RIV year

2014

Released

28. 5. 2014

Publisher

Institute of Mathematics, Faculty of Mechanical Engineering, Brno University of Technology

Location

Brno

ISBN

1805-3610

Periodical

Mathematics for applications

Year of study

3

Number

1

State

Czech Republic

Pages from

77

Pages to

90

Pages count

14

BibTex

@article{BUT107926,
  author="Dalibor {Martišek} and Hana {Druckmüllerová}",
  title="Multifocal Image Processing",
  journal="Mathematics for applications",
  year="2014",
  volume="3",
  number="1",
  pages="77--90",
  doi="10.13164/ma.2014.06",
  issn="1805-3610"
}