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An affine symmetric approach to natural image compression
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Park, H., Bhalerao, Abhir, Martin, Graham R. and Yu, Andy C. (2006) An affine symmetric approach to natural image compression. In: Proceedings of the 2nd International Conference on Mobile Multimedia Communications (MOBIMEDIA'06), Sardinia, Italy, 18-20 Sep 2006. Published in: Proceeding MobiMedia '06 Proceedings of the 2nd international conference on Mobile multimedia communications (Article Number 33). ISBN 1595935177. doi:10.1145/1374296.1374332
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Official URL: http://dx.doi.org/10.1145/1374296.1374332
Abstract
We approach image compression using an affine symmetric image representation that exploits rotation and scaling as well as the translational redundancy present between image blocks. It resembles fractal theory in the sense that a single prototypical block is needed to represent other similar blocks. Finding the optimal prototypes is not a trivial task particularly for a natural image. We propose an efficient technique utilizing independent component analysis that results in near-optimal prototypical blocks. A reliable affine model estimation method based on Gaussian mixture models and modified expectation maximization is presented. For completeness, a parameter entropy coding strategy is suggested that achieves as low as 0.14 bpp. This study provides an interesting approach to image compression although the reconstruction quality is slightly below that of some other methods. However the high frequency details are well-preserved at low bitrates, making the technique potentially useful in low bandwidth mobile applications.
Item Type: | Conference Item (Paper) | ||||
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Subjects: | Q Science > QA Mathematics > QA76 Electronic computers. Computer science. Computer software | ||||
Divisions: | Faculty of Science, Engineering and Medicine > Science > Computer Science | ||||
Journal or Publication Title: | Proceeding MobiMedia '06 Proceedings of the 2nd international conference on Mobile multimedia communications | ||||
Publisher: | ACM | ||||
ISBN: | 1595935177 | ||||
Official Date: | 18 September 2006 | ||||
Dates: |
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Number: | Article Number 33 | ||||
DOI: | 10.1145/1374296.1374332 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Restricted or Subscription Access | ||||
Date of first compliant deposit: | 27 December 2015 | ||||
Conference Paper Type: | Paper | ||||
Title of Event: | Proceedings of the 2nd International Conference on Mobile Multimedia Communications (MOBIMEDIA'06) | ||||
Type of Event: | Conference | ||||
Location of Event: | Sardinia, Italy | ||||
Date(s) of Event: | 18-20 Sep 2006 |
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