Detail publikace
Implementation of an autofocus algorithm based on searching the best in-focus image into a table-top laser-induced breakdown spectroscopy setup
NOVOTNÝ, J. MALINA, R. KAISER, J. LIŠKA, M. GALIOVÁ, M.
Anglický název
Implementation of an autofocus algorithm based on searching the best in-focus image into a table-top laser-induced breakdown spectroscopy setup
Typ
Článek recenzovaný mimo WoS a Scopus
Jazyk
en
Originální abstrakt
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.
Klíčová slova anglicky
automatic focusing; autofocus; image sharpness; laser induced breakdown spectroscopy; Fourier transform; Pearson correlation; digital noise
Vydáno
2009-10-26
ISSN
0091-3286
Časopis
OPTICAL ENGINEERING
Ročník
48
Číslo
10
Strany od–do
103604-1–103604-10
Počet stran
10