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Asian Journal of Physics Vol 31, Nos 9 – 10 (2022) 955-960

Investigation of rapid phase unwrapping technique for deformation
metrology in digital holographic interferometry

Allaparthhhi Venkata Satya Vithin1, Jagadesh Ramaiah1 and Gannavarpu Rajshekhar1,2
1Department of Electrical Engineering, Indian Institute of Technology, Kanpur-208 016, India
2Center for Laser and Photonics, Indian Institute of Technology, Kanpur-208 016, India

In this paper, we explore the application of a fast phase unwrapping method in digital holographic interferometry for deformation analysis. In the proposed approach, we formulate the phase unwrapping equation using Poisson’s equation and solve it using graphics processing unit computing. We demonstrate the method’s ability to handle noisy signal data in a computationally efficient manner using numerical simulations. We also present the experimental results to show the method’s practical utility in digital holographic interferometry. © Anita Publications. All rights reserved.
Keywords: Digital holographic interferometry, Phase unwrapping, Graphics processing unit.

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