%0 Journal Article %A Quiroga Mellado, Juan Antonio %A Villa, J. %A Gómez Pedrero, José Antonio %T Sinusoidal least-squares fitting for temporal fringe pattern analysis %D 2002 %@ 0950-0340 %U https://hdl.handle.net/20.500.14352/58776 %X A sinusoidal least-squares fitting algorithm (SLSF) is applied to temporal evaluation of fringe patterns. The least-squares fitting of a sine function directly with the irradiance fluctuations due to a linear sensitivity variation of the optical set-up avoids the problems inherent to Fourier analysis. Experiments show that the proposed method has a better noise immunity than the temporal Fourier method. An application of this technique to Deflectometry is also presented. %~