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Estimation of image magnification using phase correlation
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Raj, A. N. Joseph and Staunton, Richard C. (2007) Estimation of image magnification using phase correlation. In: 7th International Conference on Computational Intelligence and Multimedia Applications, Sivakasi, India, 13-15 Dec 2007. Published in: International Conference on Computational Intelligence and Multimedia Applications, 2007, Volume:3 pp. 490-494.
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Official URL: http://dx.doi.org/10.1109/ICCIMA.2007.222
Abstract
A new method to determine the magnification change between near and far focused images is presented. For a non-central image sub-block the magnification can be determined by considering the translation of the block. In practice the central sub-block was used to measure the overall translation and non-central sub-blocks provide a map of magnification at different points within an image. The method employs Phase Correlation. Experimental results with simulated and real images show the method works effectively even for defocused images.
Item Type: | Conference Item (Paper) | ||||
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Subjects: | Q Science > QA Mathematics > QA76 Electronic computers. Computer science. Computer software T Technology > TR Photography |
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Divisions: | Faculty of Science, Engineering and Medicine > Engineering > Engineering | ||||
Journal or Publication Title: | International Conference on Computational Intelligence and Multimedia Applications, 2007 | ||||
Publisher: | IEEE Computer Society | ||||
Editor: | Arivazhagan, S and Selvaraj, H and Verma, B and DeCarvalho, A | ||||
Official Date: | 2007 | ||||
Dates: |
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Volume: | Volume:3 | ||||
Number of Pages: | 5 | ||||
Page Range: | pp. 490-494 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Conference Paper Type: | Paper | ||||
Title of Event: | 7th International Conference on Computational Intelligence and Multimedia Applications | ||||
Type of Event: | Conference | ||||
Location of Event: | Sivakasi, India | ||||
Date(s) of Event: | 13-15 Dec 2007 |
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