Naslov
Low Spectral Density Analysis by Video Extraction

Autori
Kolarić, Darko ; Skala, Karolj ; Šćepanović, Tomislav ;

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Proceedings of Electronics in marine ELMAR 2002 / Kos, Tomislav - Zadar : Hrvatsko društvo Elektronika u pomorstvu (ELMAR), 2002, 146-150

Skup
44th International Symposium Electronics in Marine - ELMAR-2002

Mjesto i datum
Zadar, Hrvatska, 16.06.2002. - 19.06.2002

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
flame flickering; Wavelet decomposition of an image; fast Fourier transform

Sažetak
The flicker and dimensions of a flame are important parameters of a combustion process of burning solids fuels. This paper presents an instrumentation system developed for an on-line flicker and dimensions measurements of fire plumes. The system consists of a CCD camera, a frame grabber and associated image processing software (Fourier and Wavelets transforms). The flicker signal was obtained by processing the radiation intensity of individual pixels within the luminous region of a flame image. A power spectral density analysis was performed in order to obtain the frequency components of the flicker signal. The system developed has been utilized to investigate the relationship between the flicker and dimensions of a diffusion flame.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika, Informacijske i komunikacijske znanosti

POVEZANOST RADA