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http://cio.repositorioinstitucional.mx/jspui/handle/1002/1168| Steerable spatial phase shifting applied to single-image closed-fringe interferograms | |
| Manuel Servín Guirado Julio C. Estrada | |
| Acceso Abierto | |
| Atribución-NoComercial-SinDerivadas | |
| It is well known that spatial phase shifting interferometry (SPSI) may be used to demodulate two- dimensional (2D) spatial-carrier interferograms. In these cases the application of SPSI is straightforward because the modulating phase is a monotonic increasing function of space. However, this is not true when we apply SPSI to demodulate a single-image interferogram containing closed fringes. This is because using these algorithms, one would obtain a wrongly demodulated monotonic phase all over the 2D space. We present a technique to overcome this drawback and to allow any SPSI algorithm to be used as a single-image fringe pattern demodulator containing closed fringes. We make use of the 2D spatial orientation direction of the fringes to steer (orient) the one-dimensional SPSI algorithm in order to correctly demodulate the nonmonotonic 2D phase all over the interferogram. | |
| 16-04-2009 | |
| Artículo | |
| CIENCIAS FÍSICO MATEMÁTICAS Y CIENCIAS DE LA TIERRA | |
| Aparece en las colecciones: | Articulos Arbitrados 2009 |
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| Fichero | Tamaño | Formato | |
|---|---|---|---|
| Steerable spatial phase shifting applied to single-image closed fringe interferograms.pdf | 1.72 MB | Adobe PDF | Visualizar/Abrir |