Image enhancement and phase unwrapping of an interferometric image

Authors

Fema Joy A. Daquiado ⋅ PH National Institute of Physics, University of the Philippines Diliman
Analiza B. Afable ⋅ PH National Institute of Physics, University of the Philippines Diliman
Jane G. Tagabuan ⋅ PH National Institute of Physics, University of the Philippines Diliman
Maricor Soriano ⋅ PH National Institute of Physics, University of the Philippines Diliman

Abstract

This study investigates the effect of different image enhancement techniques on the unwrapped phase plots of a given interferometric fringe pattern. Among the MATLAB filtering techniques used are histogram equalization (HISTEQ) and adaptive noise-reduction methods such as WIENER2, and Unsharp. Results show that the histogram equalization technique is the most effective in producing the lowest noise-level and minimal discontinuities in the soda can interferometric image, with the lowest computed mean standard deviation of 1.52 displacement units.

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Issue

2002: Proceedings of the 20th Samahang Pisika ng Pilipinas Physics Congress

Article ID

SPP-2002-PP-27

Section

Image and Signal Processing

Published

2002-10-23

How to Cite

[1]

FJA Daquiado, AB Afable, JG Tagabuan, and M Soriano, Image enhancement and phase unwrapping of an interferometric image, Proceedings of the Samahang Pisika ng Pilipinas 20, SPP-2002-PP-27 (2002). URL: https://proceedings.spp-online.org/article/view/SPP-2002-PP-27.