A one-dimensional discrete Hilbert transform for interferometric phases

Ribun Onodera; Yukihiro Ishii

doi:10.1117/12.577834

20 January 2005 A one-dimensional discrete Hilbert transform for interferometric phases

Ribun Onodera, Yukihiro Ishii

Proceedings Volume 5633, Advanced Materials and Devices for Sensing and Imaging II; (2005) https://doi.org/10.1117/12.577834
Event: Photonics Asia, 2004, Beijing, China

Abstract

The phase-demodulation scheme by using a discrete Hilbert transform that can change the interferometric phase by π/2 has been investigated. In-quadrature components of a fringe pattern are obtained from one captured interferogram by using a one-dimensional (1-D) discrete Hilbert transform and a 1-D discrete high-pass filtering that are based on a digital signal processing technique. The 1-D discrete Hilbert transform can be extended to two-dimensional calculation with a raster scanning procedure.

Citation Download Citation

Ribun Onodera and Yukihiro Ishii "A one-dimensional discrete Hilbert transform for interferometric phases", Proc. SPIE 5633, Advanced Materials and Devices for Sensing and Imaging II, (20 January 2005); https://doi.org/10.1117/12.577834

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