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On hybrid directional transform-based intra-band image coding

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Organization
Abstract
In this paper, we propose a generic hybrid oriented-transform and wavelet-based image representation for intra-band image coding. We instantiate for three popular directional transforms having similar powers of approximation but different redundancy factors. For each transform type, we design a compression scheme wherein we exploit intra-band coefficient dependencies. We show that our schemes outperform alternative approaches reported in literature. Moreover, on some images, we report that two of the proposed codec schemes outperform JPEG2000 by over 1dB. Finally, we investigate the trade-off between oversampling and sparsity and show that, at low rates, hybrid coding schemes with transform redundancy factors as high as 1.25 to 5.8 are capable in fact of outperforming JPEG2000 and its critically-sampled wavelets.
Keywords
INFORMATION-THEORETIC ANALYSIS, CONTOURLET TRANSFORM, EFFICIENT, REPRESENTATIONS, DEPENDENCIES, COEFFICIENTS, COMPRESSION

Citation

Please use this url to cite or link to this publication:

Chicago
Alecu, Alin, Adrian Munteanu, Aleksandra Pizurica, Jan Cornelis, and Peter Schelkens. 2007. “On Hybrid Directional Transform-based Intra-band Image Coding.” In Lecture Notes in Computer Science, ed. JB Talon, W Philips, D Popescu, and P Scheunders, 4678:1049–1060. Berlin, Germany: Springer.
APA
Alecu, A., Munteanu, A., Pizurica, A., Cornelis, J., & Schelkens, P. (2007). On hybrid directional transform-based intra-band image coding. In J. Talon, W. Philips, D. Popescu, & P. Scheunders (Eds.), LECTURE NOTES IN COMPUTER SCIENCE (Vol. 4678, pp. 1049–1060). Presented at the 9th International Conference on Advanced Concepts for Intelligent Vision Systems (ACIVS 2007), Berlin, Germany: Springer.
Vancouver
1.
Alecu A, Munteanu A, Pizurica A, Cornelis J, Schelkens P. On hybrid directional transform-based intra-band image coding. In: Talon J, Philips W, Popescu D, Scheunders P, editors. LECTURE NOTES IN COMPUTER SCIENCE. Berlin, Germany: Springer; 2007. p. 1049–60.
MLA
Alecu, Alin, Adrian Munteanu, Aleksandra Pizurica, et al. “On Hybrid Directional Transform-based Intra-band Image Coding.” Lecture Notes in Computer Science. Ed. JB Talon et al. Vol. 4678. Berlin, Germany: Springer, 2007. 1049–1060. Print.
@inproceedings{385512,
  abstract     = {In this paper, we propose a generic hybrid oriented-transform and wavelet-based image representation for intra-band image coding. We instantiate for three popular directional transforms having similar powers of approximation but different redundancy factors. For each transform type, we design a compression scheme wherein we exploit intra-band coefficient dependencies. We show that our schemes outperform alternative approaches reported in literature. Moreover, on some images, we report that two of the proposed codec schemes outperform JPEG2000 by over 1dB. Finally, we investigate the trade-off between oversampling and sparsity and show that, at low rates, hybrid coding schemes with transform redundancy factors as high as 1.25 to 5.8 are capable in fact of outperforming JPEG2000 and its critically-sampled wavelets.},
  author       = {Alecu, Alin and Munteanu, Adrian and Pizurica, Aleksandra and Cornelis, Jan and Schelkens, Peter},
  booktitle    = {LECTURE NOTES IN COMPUTER SCIENCE},
  editor       = {Talon, JB and Philips, W and Popescu, D and Scheunders, P},
  isbn         = {3-540-74606-4},
  issn         = {0302-9743},
  language     = {eng},
  location     = {Delft, The Netherlands},
  pages        = {1049--1060},
  publisher    = {Springer},
  title        = {On hybrid directional transform-based intra-band image coding},
  volume       = {4678},
  year         = {2007},
}

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