| dc.creator | Manuel Servín Guirado | |
| dc.creator | Julio C. Estrada | |
| dc.date | 2009-04-16 | |
| dc.date.accessioned | 2023-07-21T15:15:47Z | |
| dc.date.available | 2023-07-21T15:15:47Z | |
| dc.identifier | http://cio.repositorioinstitucional.mx/jspui/handle/1002/1168 | |
| dc.identifier.uri | https://repositorioslatinoamericanos.uchile.cl/handle/2250/7725923 | |
| dc.description | 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. | |
| dc.format | application/pdf | |
| dc.rights | info:eu-repo/semantics/openAccess | |
| dc.rights | http://creativecommons.org/licenses/by-nc-nd/4.0 | |
| dc.subject | info:eu-repo/classification/cti/1 | |
| dc.subject | info:eu-repo/classification/cti/1 | |
| dc.title | Steerable spatial phase shifting applied to single-image closed-fringe interferograms | |
| dc.type | info:eu-repo/semantics/article | |
