ESPI correlogram analysis by two stage application of wavelet transform with use of intensity thresholding

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F15%3A33154226" target="_blank" >RIV/61989592:15310/15:33154226 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68378271:_____/15:00449134

Výsledek na webu

<a href="http://ac.els-cdn.com/S0030402615000716/1-s2.0-S0030402615000716-main.pdf?_tid=8e4f12a8-3771-11e5-adcb-00000aacb360&acdnat=1438339836_9ad691c2d1abe4cf0415497c7c10b036" target="_blank" >http://ac.els-cdn.com/S0030402615000716/1-s2.0-S0030402615000716-main.pdf?_tid=8e4f12a8-3771-11e5-adcb-00000aacb360&acdnat=1438339836_9ad691c2d1abe4cf0415497c7c10b036</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.ijleo.2015.01.037" target="_blank" >10.1016/j.ijleo.2015.01.037</a>

Jazyk výsledku

angličtina

Název v původním jazyce

ESPI correlogram analysis by two stage application of wavelet transform with use of intensity thresholding

Popis výsledku v původním jazyce

The presented paper deals with the data processing of correlograms acquired by an electronic speckle pattern interferometry (ESPI). Correlograms are highly noised by the speckle pattern and special care should be taken to denoise these correlograms before calculating the demanded phase map or phase profile. This paper presents a process that utilizes two stage use of wavelet transform (WT) for both denoising and a phase profile retrieval. In the first stage the correlogram is denoised by thresholding ofwavelet transform coefficients. Unlike the common use, WT phase retrieval process is not directly applied to the denoised correlogram, but rather to its intensity thresholded image, which is done in the second stage. Proposed algorithm is verified by its application to the artificially generated correlograms and in the final step also to the experimentally acquired correlograms.

Název v anglickém jazyce

ESPI correlogram analysis by two stage application of wavelet transform with use of intensity thresholding

Popis výsledku anglicky

The presented paper deals with the data processing of correlograms acquired by an electronic speckle pattern interferometry (ESPI). Correlograms are highly noised by the speckle pattern and special care should be taken to denoise these correlograms before calculating the demanded phase map or phase profile. This paper presents a process that utilizes two stage use of wavelet transform (WT) for both denoising and a phase profile retrieval. In the first stage the correlogram is denoised by thresholding ofwavelet transform coefficients. Unlike the common use, WT phase retrieval process is not directly applied to the denoised correlogram, but rather to its intensity thresholded image, which is done in the second stage. Proposed algorithm is verified by its application to the artificially generated correlograms and in the final step also to the experimentally acquired correlograms.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BH - Optika, masery a lasery

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2015

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Optik

ISSN

0030-4026

e-ISSN

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Svazek periodika

126

Číslo periodika v rámci svazku

7-8

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

6

Strana od-do

865-870

Kód UT WoS článku

000355777900039

EID výsledku v databázi Scopus

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