Image enhancement and phase unwrapping of an interferometric image

Authors

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

SPP 2002 Proceedings Cover

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Published

2002-10-23

Issue

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

Section

Image and Signal Processing

License

By submitting their manuscript to the Samahang Pisika ng Pilipinas (SPP) for consideration, the Authors warrant that their work is original, does not infringe on existing copyrights, and is not under active consideration for publication elsewhere.
Upon acceptance of their manuscript, the Authors further agree to grant SPP the non-exclusive, worldwide, and royalty-free rights to record, edit, copy, reproduce, publish, distribute, and use all or part of the manuscript for any purpose, in any media now existing or developed in the future, either individually or as part of a collection.
All other associated economic and moral rights as granted by the Intellectual Property Code of the Philippines are maintained by the Authors.

How to Cite

[1]
“Image enhancement and phase unwrapping of an interferometric image”, Proc. SPP, vol. 20, no. 1, p. SPP-2002-PP-27, Oct. 2002, Accessed: Mar. 26, 2026. [Online]. Available: https://proceedings.spp-online.org/article/view/SPP-2002-PP-27