Estimation of image magnification using phase correlation
Raj, A. N. Joseph and Staunton, R. C. (2007) Estimation of image magnification using phase correlation. In: 7th International Conference on Computational Intelligence and Multimedia Applications, Sivakasi, INDIA, DEC 13-15, 2007. Published in: ICCIMA 2007: INTERNATIONAL CONFERENCE ON COMPUTATIONAL INTELLIGENCE AND MULTIMEDIA APPLICATIONS, VOL III, PROCEEDINGS pp. 490-494.Full text not available from this repository.
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 (UNSPECIFIED)|
|Subjects:||Q Science > QA Mathematics > QA76 Electronic computers. Computer science. Computer software
T Technology > TR Photography
|Journal or Publication Title:||ICCIMA 2007: INTERNATIONAL CONFERENCE ON COMPUTATIONAL INTELLIGENCE AND MULTIMEDIA APPLICATIONS, VOL III, PROCEEDINGS|
|Publisher:||IEEE COMPUTER SOC|
|Editor:||Arivazhagan, S and Selvaraj, H and Verma, B and DeCarvalho, A|
|Number of Pages:||5|
|Page Range:||pp. 490-494|
|Title of Event:||7th International Conference on Computational Intelligence and Multimedia Applications|
|Location of Event:||Sivakasi, INDIA|
|Date(s) of Event:||DEC 13-15, 2007|
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