Research Publications

In refereed journals

J8 D. Bhowmik and C. Abhayaratne, “2D+t wavelet domain video watermarking”, (To appear in) Advances in Multimedia. DOI PP
J7 M. Majid and C. Abhayaratne, “Redundancy controllable scalable unbalanced multiple description bitstream generation for peer-to-peer video streaming”, (To appear in) Signal Processing: Image Communication. DOI PP
J6 C. Abhayaratne and D. Bhowmik, “Scalable watermark extraction for real-time authentication of JPEG 2000 images”, Journal of Real-Time Image Processing, Vol. 6, No. 4, 2011. DOI PP
J5 C. Abhayaratne, “Reversible wavelet filter banks with side informationless spatially adaptive low-pass filters”, J. Electron. Imaging 20, 033012 (2011). DOI PP
J4 F. Cardinaux, D. Bhowmik, C. Abhayaratne and M. Hawley, “Video based technology for ambient assisted living: A review of the literature”, Journal of Ambient Intelligence and Smart Environments, Vol. 3, No. 3, Aug. 2011, pp. 253-269. DOI PP
J3 C. Abhayaratne, E. Izquierdo, M. Mrak and S. Tubaro, “Editorial: Special issue on scalable coded media beyond compression”, Signal Processing: Image Communication, vol. 24, No. 6, July 2009, pp. 415-416. DOI PP
J2 G.C.K. Abhayaratne, “Reversible integer-to-integer mapping of N-point orthonormal block transforms”, Signal Processing, vol. 87, No. 5, pp. 950-969, 2007. DOI PP
J1 G.C.K. Abhayaratne, “Scalable Near-lossless Image Coding”, SPIE/IS&T Journal of Electronic Imaging, vol. 15, No. 4, art. no. 043008, Oct-Dec 2006. DOI PP

In refereed conference proceedings

C39 M. Oakes, D. Bhowmik and C. Abhayaratne, “Visaul attention-based image watermarking”, in Proc. IEEE International Symposium on Circuits and Systems (ISCAS 2011), May 2011. DOI PP P
C38 M. Majid and C. Abhayaratne, “Scalable multiple description video coding using successive refinement of side quantizers”, in Proc. Picture Coding Symposium (PCS 2010), Dec. 2010. DOI PP P
C37 M. Majid and C. Abhayaratne, “Successive refinment of overlapped cell side quantizers for scalable multiple description coding”, in Proc. Picture Coding Symposium (PCS 2010), Dec. 2010. DOI PP P
C36 D. Bhowmik and C. Abhayaratne, “Video watermarking using motion compensated t+2D+t filtering”, in Proc. ACM Workshop on Multimedia and Security (MMSec 2010), Sept. 2010. DOI PP P
C35 D. Bhowmik, C. Abhayaratne and M. Oakes, “Robustness analysis of blind watermarking for quality scalable image compression”, in Proc. European Signal Processing Conference (EUSIPCO 2010), Aug. 2010. DOI PP P
C34 M. Majid and C. Abhayaratne, “Fully scalable multiple description image coding”, in Proc. IEEE Multimedia Signal Processing Workshop (MMSP 2009), Oct. 2009. DOI PP P
C33 M. Majid and C. Abhayaratne, “Distributed multiple description image coding”, in Proc. IEEE Multimedia Signal Processing Workshop (MMSP 2009), Oct. 2009. DOI PP P
C32 M. Majid and C. Abhayaratne, “Multiple description scalar quantization with successive refinement”, in Proc. European Signal Processing Conference (EUSIPCO 2009), Aug. 2009. DOI PP P
C31 S. Huang, Y. Zhan and C. Abhayaratne, “Hybrid decoding schemes for Turbo-codes”, in Proc. China-Ireland International Conference on Information and Communication Technologies (CIICT 2009), Aug. 2009. DOI PP P
C30 D. Bhowmik and C. Abhayaratne, “The Effect of Quality Scalable Image Compression on Robust Watermarking”, in Proc. IEEE Workshop on Digital Signal Processing (DSP 2009), July 2009. DOI PP P
C29 D. Bhowmik and C. Abhayaratne, “Embedding distortion modelling for non-orthonormal wavelet based watermarking schemes”, in Proc. SPIE (7248) Wavelet Applications in Industrial Processing VI, Jan. 2009. DOI PP P
C28 D. Bhowmik and C. Abhayaratne, “A framework for evaluating wavelet based watermarking for scalable coded digital item adaptation attacks”, in Proc. SPIE (7248) Wavelet Applications in Industrial Processing VI, Jan. 2009. DOI PP P
C27 M. Majid and C. Abhayaratne, “Multiple description image coding using several multiple description scalar quantizers”, in Proc. SPIE (7257) Visual Communications and Image Processing (VCIP), Jan. 2009. DOI PP P
C26 C. Abhayaratne and F. Muzammil, “Robust Visual Content Representation Using Compression Modes Driven Low-level Visual Descriptor”, Lecture Notes in Computer Science, Springer-Verlag, LNCS Vol. 5371, Advances in Multimedia Modeling (MMM'09), Jan. 2009. pp 322 - 332. DOI PP P
C25 D. Bhowmik and C. Abhayaratne, “Embedding distortion modelling for wavelet based watermarking schemes”, Lecture Notes in Computer Science, Springer-Verlag, Proc. of International Workshop on Digital Watermarking (IWDW '08), LNCS vol. 5450, Nov.2008, pp 363-378. DOI PP P
C24 D. Bhowmik and C. Abhayaratne, “Evaluation of Watermark robustness to JPEG2000 based content adaptation attacks”, in Proc. IET/IEEE Visual Information Engineering (VIE). Aug. 2008. DOI PP P
C23 C. Abhayaratne, “Content-adaptation resilient low level visual features for content based image retrieval”, in Proc. IET/IEEE Visual Information Engineering (VIE). Aug. 2008. DOI PP P
C22 F. Muzammil and C. Abhayaratne, “Scalable domain visual feature extraction”, in Proc. 4th International Conference on Visual Media Production (CVMP), Nov. 2007. DOI PP P
C21 D. Bhowmik and C. Abhayaratne, “A watermark evaluation bench for content adaptation modes”, in Proc. 4th International Conference on Visual Media Production (CVMP), Nov. 2007. DOI PP P
C20 D. Bhowmik and C. Abhayaratne, “Morphological wavelet domain image watermarking”, in Proc. 15th European Signal Processing Conference (EUSIPCO), Sept. 2007. DOI PP P
C19 G. C. K. Abhayaratne, “Reducing aliasing in wavelet-based down sampling for improved resolution scalability”, in Proc. IEEE International conference on Image Processing (ICIP), Sept. 2005. DOI PP P
C18 G. C. K. Abhayaratne, I. Jermyn and J. Zerubia, “Texture adaptive mother wavelet selection for texture analysis”, in Proc. IEEE International conference on Image Processing (ICIP), Sept. 2005. DOI PP P
C17 N. Sprljan, M. Mrak, G. C. K. Abhayaratne and E. Izquierdo, “A scalable coding framework for efficient video adaptation”, in Proc. International Workshop on Image Analysis for Multimedia Interactive Services. (WIAMIS), April. 2005. DOI PP P
C16 M. Mrak, N. Sprljan, G. C. K. Abhayaratne and E. Izquierdo, “Scalable generation and coding of motion vectors for highly scalable video coding”, in Proc. Picture Coding Symposium (PCS), Dec. 2004. DOI PP P
C15 G. C. K. Abhayaratne, “Wavelet filter banks with a 2D spatially adaptive low pass filter for scalable image coding”, in Proc. Picture Coding Symposium (PCS), Dec. 2004. DOI PP P
C14 G. C. K. Abhayaratne, I. Jermyn and J. Zerubia, “Texture analysis using adaptive biorthogonal wavelet packets”, in Proc. IEEE International conference on Image Processing (ICIP), Oct. 2004. DOI PP P
C13 M. Mrak, G. C. K. Abhayaratne and E. Izquierdo, “On the influence of motion vector precision limiting in scalable video coding”, in Proc. International Conference on Signal Processing, Aug. 2004. . DOI PP P
C12 G. C. K. Abhayaratne, “2D wavelet transforms with a spatially adaptive 2D low pass filter”, in Proc. IEEE Nordic Signal Processing (NORSIG), June 2004. DOI PP P
C11 G. C. K. Abhayaratne and H. J. A. M. Heijmans, “A novel morphological subband decomposition scheme for t+2D wavelet video coding”, in Proc. International Symposium on Image and Signal Proc. and Analysis (ISPA), Sep. 2003. DOI PP P
C10 B. Pesquet-Popescu, H. J. A. M. Heijmans, G. C. K. Abhayaratne and G. Piella, “Quantization of 2D adaptive wavelet decompositions”, in Proc. IEEE International Conference on Image Processing (ICIP), Sep. 2003. DOI PP P
C9 G. C. K. Abhayaratne, “Spatially adaptive wavelet transforms: An optimal interpolation approach”, in Proc. International Workshop on Spectral Methods and Multirate Signal Processing (SMMSP), Sep. 2003. DOI PP P
C8 G. C. K. Abhayaratne, G. Piella, B. Pesquet-Popescu, and H. J. A. M. Heijmans, “Adaptive integer to integer wavelet transforms using update lifting”, in Proc. SPIE (5206) Wavelets X, Aug. 2003. DOI PP P
C7 G. C. K. Abhayaratne, “Modifying integer wavelet transforms for scalable near-lossless image coding”, in Proc. SPIE (5150) Visual Communications and Image Processing (VCIP), July 2003. DOI PP P
C6 G. C. K. Abhayaratne, “Orthonormal integer block transforms for lossless coding: design and performance analysis”, in Proc. SPIE (5150) Visual Communications and Image Processing (VCIP), July 2003. DOI PP P
C5 G. C. K. Abhayaratne, “Discrete wavelet transforms that have an adaptive low pass filter”, in Proc. International Symposium on Signal Processing and its Applications (ISSPA), July 2003. DOI PP P
C4 G. C. K. Abhayaratne, “Spatially adaptive integer lifting with no side information for lossless video coding”, in Proc. Picture Coding Symposium (PCS), April 2003. DOI PP P
C3 G. C. K. Abhayaratne, “N-point discrete cosine transforms that map integers to integers for lossless image/video coding”, in Proc. Picture Coding Symposium (PCS), April 2003. DOI PP P
C2 G. C. K. Abhayaratne and D. M. Monro, “Embedded to lossless coding of motion compensated prediction residuals in lossless video coding”, in Proc. SPIE (4310) Visual Commumications and Image Processing (VCIP), Jan. 2001. DOI PP P
C1 G. C. K. Abhayaratne and D. M. Monro, “Embedded to lossless image coding (ELIC)”, in Proc. IEEE Nordic Signal Processing (NORSIG), June 2000. DOI PP P

Thesis

T1 C. Abhayaratne, “Lossless and Nearly Lossless Digital Video Coding”, PhD Thesis, Dept. of Electronic and Electrical Engineering, University of Bath, U.K., 2002. Link

Other (stanadards contributions and research reports)

R6 G. C. K. Abhayaratne, I. Jermyn and J. Zerubia, “Probabilistic Models of Adaptive Mother Wavelets for Texture Description”, INRIA Research Report, Sophia Antipolis, France, Jan. 2006. Link
R5 M. Mrak, N. Sprljan, G. C. K. Abhayaratne and E. Izquierdo, “Scalable motion vectors vs. unlimited precision based motion compensation at the decoder in t+2D wavelet video coding”, ISO/IEC JTC1/SC29/WG11 MPEG2005/M11750, Jan. 2005. Link
R4 G. C. K. Abhayaratne and E. Izquierdo, “Wavelets-based residual frame coding in t+2D wavelet video coding”, ISO/IEC JTC1/SC29/WG11 MPEG2005/M11748, Jan. 2005. Link
R3 G. C. K. Abhayaratne, N. Sprljan, M. Mrak and E. Izquierdo, “A spatial decomposition tool for improved spatial resolution scalability in video coding”, ISO/IEC JTC1/SC29/WG11 MPEG2004/M10716, March 2004. Link
R2 G. C. K. Abhayaratne, N. Sprljan, M. Mrak and E. Izquierdo, “Response to CFP on scalable video coding”, ISO/IEC JTC1/SC29/WG11 MPEG2004/M10569-S24, March 2004. Link
R1 G. C. K. Abhayaratne and A. N. Evans, “On-board Quasi-Lossless SAR Image Compression Techniques”, Technical report prepared for System Engineering and Assessment Ltd., United Kingdom, Oct. 2001. Link