title: Filtering algorithm for noise reduction in phase-map images with 2pi phase jumps.
abstract: 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.
authors.forename: R
authors.initials: R
authors.lastname: Seara
authors.forename: A A
authors.initials: AA
authors.lastname: Go Alves
authors.forename: P B
authors.initials: PB
authors.lastname: Uliana