
On hybrid directional transform-based intra-band image coding
- Author
- Alin Alecu, Adrian Munteanu, Aleksandra Pizurica (UGent) , Jan Cornelis (UGent) and Peter Schelkens
- 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: http://hdl.handle.net/1854/LU-385512
- MLA
- Alecu, Alin, et al. “On Hybrid Directional Transform-Based Intra-Band Image Coding.” LECTURE NOTES IN COMPUTER SCIENCE, edited by JB Talon et al., vol. 4678, Springer, 2007, pp. 1049–60.
- 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). Berlin, Germany: Springer.
- Chicago author-date
- 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, edited by JB Talon, W Philips, D Popescu, and P Scheunders, 4678:1049–60. Berlin, Germany: Springer.
- Chicago author-date (all authors)
- 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 by. JB Talon, W Philips, D Popescu, and P Scheunders, 4678:1049–1060. 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.
- IEEE
- [1]A. Alecu, A. Munteanu, A. Pizurica, J. Cornelis, and P. Schelkens, “On hybrid directional transform-based intra-band image coding,” in LECTURE NOTES IN COMPUTER SCIENCE, Delft, The Netherlands, 2007, vol. 4678, pp. 1049–1060.
@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}}, keywords = {{INFORMATION-THEORETIC ANALYSIS,CONTOURLET TRANSFORM,EFFICIENT,REPRESENTATIONS,DEPENDENCIES,COEFFICIENTS,COMPRESSION}}, 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}}, }