TY - GEN
T1 - Automatic real-time generalized phase-shifting interferometry to process interferograms with spatio-temporal visibility
AU - Juarez-Salazar, Rigoberto
AU - Robledo-Sanchez, Carlos
AU - Meneses-Fabian, Cruz
AU - Rodriguez-Zurita, Gustavo
AU - Guerrero Sanchez, Fermin
AU - Barcelata-Pinzon, Antonio
PY - 2013
Y1 - 2013
N2 - A faster and robust generalized phase-shifting interferometry suitable to automatic real-time applications is presented. The proposal is based on the parameter estimation by the least squares method. The algorithm can retrieve the wrapped phase from two or more phase shifted interferograms with unknown phase steps between 0 and rad. Moreover, by the multiple or single parameter estimation approach of this algorithm, interferograms with variable visibility both spatial and temporally can be processed, overcoming the restrictions and drawbacks from usual variable spatial visibility approaches. By both computer simulation and a optical experiment, the algorithm's feasibility is illustrated.
AB - A faster and robust generalized phase-shifting interferometry suitable to automatic real-time applications is presented. The proposal is based on the parameter estimation by the least squares method. The algorithm can retrieve the wrapped phase from two or more phase shifted interferograms with unknown phase steps between 0 and rad. Moreover, by the multiple or single parameter estimation approach of this algorithm, interferograms with variable visibility both spatial and temporally can be processed, overcoming the restrictions and drawbacks from usual variable spatial visibility approaches. By both computer simulation and a optical experiment, the algorithm's feasibility is illustrated.
KW - Automatic
KW - Fringe analysis
KW - Generalized phase-shifting interferometry
KW - Phase measurement
KW - Real- time
UR - http://www.scopus.com/inward/record.url?scp=84891303834&partnerID=8YFLogxK
U2 - 10.1117/12.2026103
DO - 10.1117/12.2026103
M3 - Contribución a la conferencia
AN - SCOPUS:84891303834
SN - 9780819496010
T3 - Proceedings of SPIE - The International Society for Optical Engineering
BT - 8th Iberoamerican Optics Meeting and 11th Latin American Meeting on Optics, Lasers, and Applications
T2 - 8th Iberoamerican Optics Meeting, RIAO 2013 and 11th Latin American Meeting on Optics, Lasers, and Applications, OPTILAS 2013
Y2 - 22 July 2013 through 26 July 2013
ER -