| NOVOTNÝ, Jan, Radomír MALINA, Jozef KAISER, Miroslav LIŠKA, Michaela GALIOVÁ a Karel NOVOTNÝ. Implementation of an autofocus algorithm based on searching the best in-focus image into a table-top laser-induced breakdown spectroscopy setup. Optical Engineering. 2009, roč. 48, č. 10, 10 s. ISSN 0091-3286. |
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@article{856232,
author = {Novotný, Jan and Malina, Radomír and Kaiser, Jozef and Liška, Miroslav and Galiová, Michaela and Novotný, Karel},
article_number = {10},
keywords = {automatic focusing; autofocus; image sharpness; laser induced breakdown spectroscopy; Fourier transform; Pearson correlation; digital noise},
language = {eng},
issn = {0091-3286},
journal = {Optical Engineering},
title = {Implementation of an autofocus algorithm based on searching the best in-focus image into a table-top laser-induced breakdown spectroscopy setup},
volume = {48},
year = {2009}
}
TY - JOUR
ID - 856232
AU - Novotný, Jan - Malina, Radomír - Kaiser, Jozef - Liška, Miroslav - Galiová, Michaela - Novotný, Karel
PY - 2009
TI - Implementation of an autofocus algorithm based on searching the best in-focus image into a table-top laser-induced breakdown spectroscopy setup
JF - Optical Engineering
VL - 48
IS - 10
SN - 00913286
KW - automatic focusing
KW - autofocus
KW - image sharpness
KW - laser induced breakdown spectroscopy
KW - Fourier transform
KW - Pearson correlation
KW - digital noise
N2 - Laser-ablation based spectrochemical analytical methods could be used in applications in which the capability for spatially resolved analysis is required. Such analysis gives a 2-D or 3-D map of the monitored chemical elements. Here we introduce automation of a 2-D surface analysis in the laser-induced breakdown spectroscopy setup by implementation of an autofocus algorithm based on the evaluation of the image sharpness. The most suitable algorithm with respect to its speed, accuracy, and durability against digital noise is chosen by testing different gradient-based methods and methods working in the frequency domain.
ER -
NOVOTNÝ, Jan, Radomír MALINA, Jozef KAISER, Miroslav LIŠKA, Michaela GALIOVÁ a Karel NOVOTNÝ. Implementation of an autofocus algorithm based on searching the best in-focus image into a table-top laser-induced breakdown spectroscopy setup. \textit{Optical Engineering}. 2009, roč.~48, č.~10, 10 s. ISSN~0091-3286.
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