The process of optical whole-field filtering of a double-exposure specklegram has been analyzed from a statistical point of view. It is shown that the size of the filtering aperture plays a vital role in the range of visible fringes, and this in turn determines the upper limit of measurement.
© 1984 Optical Society of America
J. B. Chen and F. P. Chiang, "Statistical analysis of whole-field filtering of specklegram and its upper limit of measurement," J. Opt. Soc. Am. A 1, 845-849 (1984)