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Speckle photography : mixed domain fractional Fourier motion detection
2006-01-01, Patten, Robert, Hennelly, Bryan M., Kelly, Damien P., O'Neill, Feidhlim T., Liu, Ying, Sheridan, John T.
A reﬂection-based optical implementation of two simultaneous scale-invariant fractional Fourier transforms (FRTs) is used to develop a novel compact speckle photographic system. The system allows the independent determination of both surface tilting and in-plane translational motion from two sequential mixed domain images captured using a single camera