Title :
Statistical analysis of signal-to-noise ratios in fringe pattern matching
Author :
Pham, Tuan D. ; Wang, Z. ; Yang, M. ; Packianather, M.S.
Author_Institution :
Sch. of Eng., Cardiff Univ., UK
Abstract :
The paper presents a statistical analysis of signal-to-noise ratios (SNRs) in fringe pattern matching. It shows theoretically that the SNR of interference fringes can be significantly improved by fringe pattern matching or mean square difference calculation based on statistical analysis. Computer simulation and experimental results have confirmed that the high accuracy of fringe pattern matching is due to the significant SNR improvements achieved.
Keywords :
image matching; light interferometry; optical noise; pattern matching; random noise; statistical analysis; electrical noise; fringe pattern matching; fringe spacing; image matching; interference fringes; interferograms; mean square difference calculation; optical noise; signal-to-noise ratio; statistical analysis; Difference equations; Optical interferometry; Optical noise; Pattern matching; Phase measurement; Phase noise; Pixel; Signal to noise ratio; Statistical analysis; Systems engineering and theory;
Conference_Titel :
Signal Processing, 2002 6th International Conference on
Print_ISBN :
0-7803-7488-6
DOI :
10.1109/ICOSP.2002.1181136
