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A comparison of FFT and DCT based phase correlation function for focused and defocused images
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Raj, Alex Noel Joseph , Shaik Majeeth, S. and Staunton, Richard C. (2012) A comparison of FFT and DCT based phase correlation function for focused and defocused images. In: 2012 International Conference on Machine Vision and Image Processing (MVIP), Taipei, Taiwan, 14-15 Dec 2012. Published in: 2012 International Conference on Machine Vision and Image Processing (MVIP) pp. 173-176. ISBN 978-1-4673-2319-2. doi:10.1109/MVIP.2012.6428788
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Official URL: http://dx.doi.org/10.1109/MVIP.2012.6428788
Abstract
The paper presents a comparison study between DCT and FFT based Phase Correlation techniques to estimate translational shifts in focused and defocused images. Though FFT based techniques are efficient for motion estimation, considering real-time implementation, DCT based techniques are simpler and computationally efficient. Experimental results with simulated focused and defocused images show comparable results to FFT's both in pixel and sub-pixel levels.
Item Type: | Conference Item (Paper) | ||||
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Divisions: | Faculty of Science, Engineering and Medicine > Engineering > Engineering | ||||
Journal or Publication Title: | 2012 International Conference on Machine Vision and Image Processing (MVIP) | ||||
Publisher: | IEEE | ||||
ISBN: | 978-1-4673-2319-2 | ||||
Book Title: | 2012 International Conference on Machine Vision and Image Processing (MVIP) | ||||
Official Date: | 2012 | ||||
Dates: |
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Page Range: | pp. 173-176 | ||||
DOI: | 10.1109/MVIP.2012.6428788 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Restricted or Subscription Access | ||||
Conference Paper Type: | Paper | ||||
Title of Event: | 2012 International Conference on Machine Vision and Image Processing (MVIP) | ||||
Type of Event: | Conference | ||||
Location of Event: | Taipei, Taiwan | ||||
Date(s) of Event: | 14-15 Dec 2012 |
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