Phase measurement improvement in temporal speckle pattern interferometry using empirical mode decomposition
| Autor: | Alejandro Federico, Guillermo H. Kaufmann, Fernando A. Marengo Rodriguez |
|---|---|
| Rok vydání: | 2007 |
| Předmět: |
Computer science
business.industry Phase (waves) Holographic interferometry Atomic and Molecular Physics and Optics Hilbert–Huang transform Electronic Optical and Magnetic Materials symbols.namesake Speckle pattern Interferometry Optics symbols Speckle imaging Hilbert transform Electrical and Electronic Engineering Physical and Theoretical Chemistry business Phase retrieval |
| Zdroj: | Optics Communications. 275:38-41 |
| ISSN: | 0030-4018 |
| Popis: | When the Hilbert transform method is used to recover the phase distribution in temporal speckle pattern interferometry, the influence of the fluctuations of the bias and the modulation intensities on the calculated phase must be driven heuristically. In this paper we show that the Empirical Mode Decomposition method can overcome these drawbacks and consequently introduces an improvement in the evaluation of the phase distribution. An example is used to illustrate the phase measurement improvement that can be obtained by the application of the proposed approach. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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