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Article Details

Copyright Statement: This is an open access article licensed under a Creative Commons Attribution 4.0 International License, which permits unrestricted use, distribution, and reproduction in any medium, even commercially as long as the original work is properly cited.

Subpixel Accuracy Analysis of Phase Correlation Shift Measurement Methods Applied to Satellite Imagery

Author 1: S. A. Mohamed
Author 2: A.K. Helmi
Author 3: M.A. Fkirin
Author 4: S.M. Badwai

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Digital Object Identifier (DOI) : 10.14569/IJACSA.2012.031233

Article Published in International Journal of Advanced Computer Science and Applications(IJACSA), Volume 3 Issue 12, 2012.

  • Abstract and Keywords
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Abstract: The key point of super resolution process is the accurate measuring of sub-pixel shift. Any tiny error in measuring such shift leads to an incorrect image focusing. In this paper, methodology of measuring sub-pixel shift using Phase correlation (PC) are evaluated using different window functions, then modified version of (PC) method using high pass filter (HPF) is introduced . Comprehensive analysis and assessment of (PC) methods shows that different natural features yield different shift measurements. It is concluded that there is no universal window function for measuring shift; it mainly depends on the features in the satellite images. Even the question of which window is optimal of particular feature is generally remains open. This paper presents the design of a method for obtaining high accuracy sub pixel shift phase correlation using (HPF).The proposed method makes the change in the different locations that lack of edges easy.

Keywords: phase correlation (PC); high pass filter (HPF); window function; sub-pixel shift.

S. A. Mohamed, A.K. Helmi, M.A. Fkirin and S.M. Badwai, “Subpixel Accuracy Analysis of Phase Correlation Shift Measurement Methods Applied to Satellite Imagery” International Journal of Advanced Computer Science and Applications(IJACSA), 3(12), 2012. http://dx.doi.org/10.14569/IJACSA.2012.031233

@article{Mohamed2012,
title = {Subpixel Accuracy Analysis of Phase Correlation Shift Measurement Methods Applied to Satellite Imagery},
journal = {International Journal of Advanced Computer Science and Applications},
doi = {10.14569/IJACSA.2012.031233},
url = {http://dx.doi.org/10.14569/IJACSA.2012.031233},
year = {2012},
publisher = {The Science and Information Organization},
volume = {3},
number = {12},
author = {S. A. Mohamed and A.K. Helmi and M.A. Fkirin and S.M. Badwai}
}


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