A filtering algorithm is proposed for processing images generated
by TV holography that contain phase jumps and a high noise
level. This algorithm first performs phase unwrapping without
removing the noise. After that, it removes the noise by use of a
conventional low-pass filter. The new approach allows for using
low-pass filters with narrow passbands, leading to a better
signal-to-noise ratio in the desired signal. Simulation results are
presented and discussed. The new algorithm has been applied
successfully under real conditions in a holographic station.
© 1998 Optical Society of America
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