Phase unwrapping by a maximum cross-amplitude spanning tree algorithm: a comparative study

Mitsuo Takeda; Takahide Abe

doi:10.1117/1.600810

1 August 1996 Phase unwrapping by a maximum cross-amplitude spanning tree algorithm: a comparative study

Mitsuo Takeda, Takahide Abe

Optical Engineering, Vol. 35, Issue 8, (August 1996). https://doi.org/10.1117/1.600810

A comparative study is made of phase-unwrapping algorithms that adopt either phase gradients or fringe amplitudes as a reliability measure in the selection of an unwrapping path. To compare with the minimum-phase-gradient spanning-tree algorithm, a maximum cross-amplitude spanning-tree algorithm is proposed, which seeks a spanning tree that maximizes overall edge weights given by the crossamplitudes, i.e., the products of the fringe amplitudes of neighboring pixels. Noise immunity of the cross-amplitude spanning-tree algorithm is demonstrated by experiment and computer simulation.

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Mitsuo Takeda and Takahide Abe "Phase unwrapping by a maximum cross-amplitude spanning tree algorithm: a comparative study," Optical Engineering 35(8), (1 August 1996). https://doi.org/10.1117/1.600810

Published: 1 August 1996

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