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Iterative image warping

Bowles, Huw; Mitchell, Kenneth; Sumner, Robert; Moore, Jeremy; Gross, Markus


Huw Bowles

Robert Sumner

Jeremy Moore

Markus Gross


Animated image sequences often exhibit a large amount of inter-frame coherence which standard rendering algorithms and pipelines are ill-equipped to exploit, limiting their efficiency. To address this inefficiency we transfer rendering results across frames using a novel image warping algorithm based on fixed point iteration. We analyze the behavior of the iteration and describe two alternative algorithms designed to suit different performance requirements. Further, to demonstrate the versatility of our approach we apply it to a number of spatio-temporal rendering problems including 30-to-60Hz frame upsampling, stereoscopic 3D conversion, defocus and motion blur. Finally we compare our approach against existing image warping methods and demonstrate a significant performance improvement.


Bowles, H., Mitchell, K., Sumner, R., Moore, J., & Gross, M. (2012). Iterative image warping. Computer Graphics Forum, 31, 237-246.

Journal Article Type Article
Publication Date 2012
Deposit Date Sep 24, 2013
Print ISSN 0167-7055
Electronic ISSN 1467-8659
Publisher Wiley
Peer Reviewed Peer Reviewed
Volume 31
Pages 237-246
Keywords Computer graphics; image-based rendering; warping algorithm; 30-to-60Hz frame upsampling; stereoscopic 3D conversion;
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