Success rate and speckle correlation in electronic speckle photography
| Autor: | Balázs Gombkötő, Janos Kornis |
|---|---|
| Rok vydání: | 2002 |
| Předmět: |
Physics
Deformation (mechanics) business.industry Physics::Optics Speckle noise Image plane Atomic and Molecular Physics and Optics Displacement (vector) Electronic Optical and Magnetic Materials Speckle pattern Computer Science::Graphics Optics Speckle photography Point (geometry) Electrical and Electronic Engineering Physical and Theoretical Chemistry business Decorrelation |
| Zdroj: | Optics Communications. 201:289-292 |
| ISSN: | 0030-4018 |
| DOI: | 10.1016/s0030-4018(01)01701-1 |
| Popis: | The effect of displacement and decorrelation of image plane speckles on the success rate of electronic speckle photography (ESP) is discussed. A straightforward definition for successful cross-correlation peak detection is given. Both experiment and simulation show a typical breakdown of the success rate vs. speckle correlation. The point of the breakdown is influenced by the rate of speckle displacement, which is related to the experimental setup, especially defocusing distance. By choosing the proper defocusing, the maximal measurable deformation is higher. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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