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

Mitsuo Takeda; Takahide Abe

doi:10.1117/12.211857

14 June 1995 Phase unwrapping based on maximum cross-amplitude spanning tree algorithm: a comparative study

Mitsuo Takeda, Takahide Abe

Proceedings Volume 2544, Interferometry VII: Techniques and Analysis; (1995) https://doi.org/10.1117/12.211857
Event: SPIE's 1995 International Symposium on Optical Science, Engineering, and Instrumentation, 1995, San Diego, CA, United States

Abstract

A comparative study is made of the 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 searches a spanning tree that maximizes overall edge weights given by the cross-amplitudes, 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.

Citation Download Citation

Mitsuo Takeda and Takahide Abe "Phase unwrapping based on maximum cross-amplitude spanning tree algorithm: a comparative study", Proc. SPIE 2544, Interferometry VII: Techniques and Analysis, (14 June 1995); https://doi.org/10.1117/12.211857

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