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Proceedings Paper

Robust image registration for multiple exposure high dynamic range image synthesis
Author(s): Susu Yao
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Paper Abstract

Image registration is an important preprocessing technique in high dynamic range (HDR) image synthesis. This paper proposed a robust image registration method for aligning a group of low dynamic range images (LDR) that are captured with different exposure times. Illumination change and photometric distortion between two images would result in inaccurate registration. We propose to transform intensity image data into phase congruency to eliminate the effect of the changes in image brightness and use phase cross correlation in the Fourier transform domain to perform image registration. Considering the presence of non-overlapped regions due to photometric distortion, evolutionary programming is applied to search for the accurate translation parameters so that the accuracy of registration is able to be achieved at a hundredth of a pixel level. The proposed algorithm works well for under and over-exposed image registration. It has been applied to align LDR images for synthesizing high quality HDR images..

Paper Details

Date Published: 7 February 2011
PDF: 9 pages
Proc. SPIE 7870, Image Processing: Algorithms and Systems IX, 78700Q (7 February 2011); doi: 10.1117/12.876630
Show Author Affiliations
Susu Yao, A*STAR Institute for Infocomm Research (Singapore)

Published in SPIE Proceedings Vol. 7870:
Image Processing: Algorithms and Systems IX
Jaakko T. Astola; Karen O. Egiazarian, Editor(s)

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