Noise-immune interference fringe analysis by modification of local intensity histogram and 2D Fourier transform method
Anno: 2001
Autori: De Nicola S., Ferraro P., Gurov I., Koviazin R., Vo1kov M.
Affiliazione autori: Istituto di Cibernetica del CNR, via Toiano 6, Arco Felice 80072, Italy; Istituto Nazionale di Ottica Applicata, Sez. di Napoli, c/o Istituto di Cibernetica del CNR;
Institute of Fine Mechanics and Optics (Technical University), 14 Sablinskaya st., SaintPetersburg 197101, Russia
Abstract: A noise-immune method of phase retrieval of single moire interferometric hinge pattern is presented and discussed. The method is shown to provide accurate recovering of the phase information by combined method based on modification of local histogram of the fringe intensity and two dimensional Fourier transform of enhanced moire fringe pattern. The principle of the method is described and the experimental results of moire interferometric measurements with submicron sensitivity of the in-plane displacement fields of thick carbon fibre/PEEK composite laminates are presented as example of application of the technique.
Giornale/Rivista: PROCEEDINGS OF SPIE
Volume: 4353 Da Pagina: 292 A: 297
Parole chiavi: interference fringe analysis; local intensity histogram; Fourier transform; phase recovering; DOI: 10.1117/12.417750Citazioni: 2dati da “WEB OF SCIENCE” (of Thomson Reuters) aggiornati al: 2024-05-12Riferimenti tratti da Isi Web of Knowledge: (solo abbonati) Link per visualizzare la scheda su IsiWeb: Clicca quiLink per visualizzare la citazioni su IsiWeb: Clicca qui