Autofocus and fusion using nonlinear correlation
Abstract
In this work a new algorithm is proposed for auto focusing and images fusion captured by microscope's CCD. The proposed algorithm for auto focusing implements the spiral scanning of each image in the stack f(x, y){sub w} to define the V{sub w} vector. The spectrum of the vector FV{sub w} is calculated by fast Fourier transform. The best in-focus image is determined by a focus measure that is obtained by the FV{sub 1} nonlinear correlation vector, of the reference image, with each other FV{sub W} images in the stack. In addition, fusion is performed with a subset of selected images f(x, y){sub SBF} like the images with best focus measurement. Fusion creates a new improved image f(x, y){sub F} with the selection of pixels of higher intensity.
- Authors:
-
- Departamento de Investigación en Física, Universidad de Sonora (UNISON), Luis Encinas y Rosales S/N, Col. Centro, Hermosillo, Sonora C.P. 8300 (Mexico)
- Centro de Investigación Científica y de Educación Superior de Ensenada (CICESE), División de Física Aplicada, Departamento de Óptica, Carretera Ensenada-Tijuana No. 3918, Fraccionamiento Zona Playitas, Ensena (Mexico)
- Departamento de Investigación en Física, Universidad de Sonora (UNISON), Luis Encinas y Rosales S/N, Col. Centro, Hermosillo, Sonora C,.P. 83000 (Mexico)
- Publication Date:
- OSTI Identifier:
- 22307920
- Resource Type:
- Journal Article
- Journal Name:
- AIP Conference Proceedings
- Additional Journal Information:
- Journal Volume: 1618; Journal Issue: 1; Conference: ICCMSE 2014: International conference on computational methods in science and engineering 2014, Athens (Greece), 4-7 Apr 2014; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ALGORITHMS; CAPTURE; CHARGE-COUPLED DEVICES; CORRELATIONS; FOCUSING; FOURIER TRANSFORMATION; IMAGES; NONLINEAR PROBLEMS; VECTORS
Citation Formats
Cabazos-Marín, Alma Rocío, Álvarez-Borrego, Josué, and Coronel-Beltrán, Ángel. Autofocus and fusion using nonlinear correlation. United States: N. p., 2014.
Web. doi:10.1063/1.4897702.
Cabazos-Marín, Alma Rocío, Álvarez-Borrego, Josué, & Coronel-Beltrán, Ángel. Autofocus and fusion using nonlinear correlation. United States. https://doi.org/10.1063/1.4897702
Cabazos-Marín, Alma Rocío, Álvarez-Borrego, Josué, and Coronel-Beltrán, Ángel. 2014.
"Autofocus and fusion using nonlinear correlation". United States. https://doi.org/10.1063/1.4897702.
@article{osti_22307920,
title = {Autofocus and fusion using nonlinear correlation},
author = {Cabazos-Marín, Alma Rocío and Álvarez-Borrego, Josué and Coronel-Beltrán, Ángel},
abstractNote = {In this work a new algorithm is proposed for auto focusing and images fusion captured by microscope's CCD. The proposed algorithm for auto focusing implements the spiral scanning of each image in the stack f(x, y){sub w} to define the V{sub w} vector. The spectrum of the vector FV{sub w} is calculated by fast Fourier transform. The best in-focus image is determined by a focus measure that is obtained by the FV{sub 1} nonlinear correlation vector, of the reference image, with each other FV{sub W} images in the stack. In addition, fusion is performed with a subset of selected images f(x, y){sub SBF} like the images with best focus measurement. Fusion creates a new improved image f(x, y){sub F} with the selection of pixels of higher intensity.},
doi = {10.1063/1.4897702},
url = {https://www.osti.gov/biblio/22307920},
journal = {AIP Conference Proceedings},
issn = {0094-243X},
number = 1,
volume = 1618,
place = {United States},
year = {Mon Oct 06 00:00:00 EDT 2014},
month = {Mon Oct 06 00:00:00 EDT 2014}
}