Many robust phase unwrapping algorithms are computationally very time-consuming, making them impractical for handling large datasets or real-time applications. In this paper, we propose a generic framework using a novel wavelet transform that can be combined with many types of phase unwrapping algorithms. By inserting reversible modulo operators in the wavelet transform, the number of coefficients that need to be unwrapped is significantly reduced, which results in large computational gains. The algorithm is tested on various types of wrapped phase imagery, reporting speedup factors of up to 500. The source code of the algorithm is publicly available.
Original languageEnglish
Pages (from-to)23094-23108
Number of pages15
JournalOptics Express
Issue number20
Publication statusPublished - Oct 2016

    Research areas

  • Phase unwrapping, Wavelets, Phase-only filters

ID: 26644288