Publications
Research publications by type
In refereed journals
J18. S. Al-Obaidi, H. Al-Khafaji and C. Abhayaratne, “Modelling temporal visual salience for human action recognition enabled visual anonymity preservation”, IEEE Access, 8, pp. 213806-213824, 2020. DOI | Download (PDF, 3.7MB)
J17. B. Alwaely and C. Abhayaratne, “AGSF: Adaptive graph formulation and hand-crafted graph spectral features for shape representation”, IEEE Access, 8, pp. 182260-182272, 2020. DOI | Download (PDF, 1.7MB)
J16. D. Bhowmik and C. Abhayaratne, “Embedding distortion analysis in wavelet-domain watermarking”, ACM Transactions on Multimedia Computing, Communications, and Applications, vol. 15, no. 4, 108, December 2019. DOI | Download on WRRO
J15. B. Alwaely and C. Abhayaratne, “Graph spectral domain feature learning with application to in-air hand-drawn number and shape recognition”, IEEE Access, 7, pp. 159661-159673, 2019. DOI | Download (PDF, 2.2MB)
J14. W. Hotrakool and C. Abhayaratne, “Referenced compressed sensing for accurate and fast spatio-temporal signal reconstruction”, Journal of Electronic Imaging, vol. 28, no. 4, 043010, July 2019. DOI | Download on WRRO
J13. D. Bhowmik and C. Abhayaratne, “Quality scalability aware watermarking for visual content”, IEEE Transactions in Image Processing, vol. 25, no. 11, November 2016.DOI | Download (PDF, 10.9MB)
J12. D. Bhowmik, M.Oakes, and C. Abhayaratne, “Visual attention-based image watermarking”, IEEE Access Journal, 4, pp. 8002-8018, 2016. DOI | Download (PDF, 10.4MB)
J11. M. Oakes, D. Bhowmik, and C. Abhayaratne, “Global motion compensated visual attention-based video watermarking”, Journal of Electronic Imaging 25(6), 061624-061624, December 2016. DOI | Download (PDF, 4.7MB)
J10. V. Angadi, C. Abhayaratne and T. Walthers, “Automated background subtraction for electron energy-loss spectroscopy and application to spectral imaging of semiconductor layers”, of Microscopy, vol. 262, no. 2, pp. 157-166, May 2016. DOI | Download (PDF, 1.8MB)
J9. D. Bhowmik and C. Abhayaratne, “On robustness against JPEG2000: A performance evaluation of wavelet-based watermarking techniques”, Multimedia Systems 1-14, 2014. DOI
J8. C. Abhayaratne and D. Bhowmik, “Scalable watermark extraction for real-time authentication of JPEG 2000 images”, Journal of Real-Time Image Processing, 8(3): 307-325, September 2013. DOI
J7. D. Bhowmik and C. Abhayaratne, “2D+t wavelet domain video watermarking”, Advances in Multimedia, volume 2012, Article ID 973418, 19 pages. DOI
J6. M. Majid and C. Abhayaratne, “Redundancy controllable scalable unbalanced multiple description bitstream generation for peer-to-peer video streaming”, Signal Processing: Image Communication, 27(5): 496-512, May 2012. DOI
J5. C. Abhayaratne, “Reversible wavelet filter banks with side informationless spatially adaptive low-pass filters”, J. Electron. Imaging 20, 033012 (2011). DOI
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, August 2011, pp. 253-269. DOI
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
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
J1. G.C.K. Abhayaratne, “Scalable near-lossless image coding”, SPIE/IS&T Journal of Electronic Imaging, vol. 15, no. 4, art. no. 043008, October – December 2006. DOI
Books and book chapters
B5. D. Bhowmik, C. Abhayaratne and S. Green, “Video watermarking for persistent and robust tracking of entertainment content (PARTEC)”, in Advances in Intelligent Systems and Computing, pp. 185-198. Springer Singapore, 2021. DOI
B4. Y. Wang, C. Abhayaratne and M. Mrak, “High efficiency video coding (HEVC) for next generation video applications”, in Academic Press Library in Signal Processing, Image and Video Compression and Multimedia, Academic Press, p. 93, 2014. DOI
B3. M. Oakes and C. Abhayaratne, “A new saliency model using intra coded high efficiency video coding (HEVC) frames”, in Multimedia Modeling, Lecture notes in Computer Science, vol. 8325, pp. 580-592, January 2014. DOI
B2. C. Abhayaratne and F. Muzammil, “Robust visual content representation using compression modes driven low-level visual descriptor”, in Advances in Multimedia Modeling, Lecture Notes in Computer Science, Springer-Verlag, LNCS Vol. 5371, January 2009. pp. 322-332. DOI
B1. D. Bhowmik and C. Abhayaratne, “Embedding distortion modelling for wavelet based watermarking schemes”, in Digital Watermarking, Lecture Notes in Computer Science, Springer-Verlag, LNCS vol. 5450, November 2008, pp. 363-378. DOI
In refereed conference proceedings
C64. B. Alwaely and C. Abhayaratne, “Graph spectral domain features for static hand gesture recognition”, in Proc. 27th European Signal Processing Conference (EUSIPCO), 2019. DOI | Download on WRRO
C63. S. Al-Obaidi and C. Abhayaratne, “Temporal salience based human action recognition”, in Proc. IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP) 2019. DOI | Download on WRRO
C62. H. Al-Khafaji and C. Abhayaratne, “Graph spectral domain blind watermarking”, in Proc. IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP) 2019. DOI | Download on WRRO
C61. B. Alwaely and C. Abhayaratne, “Adaptive graph formulation for 3D shape representation”, in Proc. IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP) 2019. DOI | Download on WRRO
C60. S. Al-Obaidi and C. Abhayaratne, “Privacy protected recognition of activities of daily living in video”, in Proc. 3rd IET International Conference on Technologies for Active and Assisted Living (TechAAL 2019). DOI | Download on WRRO
C59. B. Alwaely and C. Abhayaratne, “Graph spectral domain shape representation”, in Proc. 26th European Signal Processing Conference (EUSIPCO) 2018. DOI | Download on WRRO
C58. T. Feng and C. Abhayaratne, “Visual saliency guided high dynamic range image compression”, in Proc. 26th European Signal Processing Conference (EUSIPCO) 2018. DOI | Download on WRRO
C57. D. Bhowmik, A. Natu, T. Ishikawa, T. Feng and C. Abhayaratne, “The JPEG-blockchain framework for GLAM services”, in Proc. IEEE International Conference on Multimedia & Expo Workshops (ICMEW), 2018. DOI | Download on WRRO
C56. H. Al-Khafaji and C. Abhayaratne, “Graph spectral domain watermarking for unstructured data from sensor networks”, in Proc. 22nd International Conference on Digital Signal Processing (DSP), 2017. DOI | Download on WRRO
C55. W. Hotrakool and C. Abhayaratne, “Towards baseline-independent analysis of compressive sensed functional magnetic resonance image data”, in Proc. 22nd International Conference on Digital Signal Processing (DSP), 2017. DOI | Download on WRRO
C54. B. Alwaely and C. Abhayaratne, “Graph spectral domain feature representation for in-air drawn number recognition”, in Proc. 25th European Signal Processing Conference (EUSIPCO), 2017. DOI | Download on WRRO
C53. S. Pal and C. Abhayaratne, “Phase feature-based activity level estimation for assisted living”, IET International Conference on Technologies for Active and Assisted Living (TechAAL 2016). DOI
C52. W. Hotrakool and C. Abhayaratne, “An optimal learning parameter for running gaussian-based referenced compressive sensing”, in Proc. IET Intelligent Signal Processing (ISP 2015).
C51. T. Feng, S. Pal and C. Abhayaratne, “Mapping-free high dynamic range image compression”, in Proc. IEEE International Conference on Consumer Electronics (ICCE-Berlin 2015).
C50. S. Pal, T. Feng and C. Abhayaratne, “Real-time recognition of activity levels for ambient assisted living”, in Proc. IEEE International Conference on Consumer Electronics (ICCE-Berlin 2015).
C49. S. Pal and C. Abhayaratne, “Video-based activity level recognition for assisted living using motion features”, in Proc. IEEE/ACM International Conference on Distributed Smart Cameras (ICDSC 2015).
C48. V.Angadi, T. Walther and C. Abhayaratne, “Automated background subtraction for electron energy-loss spectroscopy and application to spectral imaging of semiconductor layers”, in Proc. Microscopy of Semiconducting Materials (MSM 2015).
C47. Y. Wang, C. Abhayaratne, R. Weerakkody and M. Mrak, “Multi-scale dithering for contouring artefacts removal in compressed UHD sequences”, in Proc. IEEE Global Signal Processing (GlobalSIP 2014).
C46. W. Hotrakool and C. Abhayaratne, “Running Gaussian reference-based reconstruction for video compressed sensing”, in Proc. IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2014).
C45. Y. Wang, C. Abhayaratne, R. Weerakkody and M. Mrak, “Colour space transforms for improved video compression”, in Proc. International conference on Systems, Signals and Image Processing (IWSSIP 2014).
C44. A. Alharbiy and C. Abhayaratne, “Classification of remotely compressively sensed data”, in Proc. IET Intelligent Signal Processing (ISP 2013), 2013.
C43. W. Hotrakool and C. Abhayaratne, “Fast compressed sensing reconstruction using least square and signal correlation”, in Proc. IET Intelligent Signal Processing (ISP 2013), 2013.
C42. M. Asad and C. Abhayaratne, “Depth pre-processing for depth-based Kinect hand gesture recognition”, in Proc. IEEE International Conf. on Image Processing (ICIP2013), 2013.
C41. M. Majid and C. Abhayaratne, “Inter-description motion vector redundancy control for scalable multiple description video coding”, in Proc. IET Conference on Image Processing (IPR2012), 2012: 142. DOI
C40. D. Bhowmik and C. Abhayaratne, “Distortion constrained robustness scalable watermarking”, in Proc. IET Conference on Image Processing (IPR2012), 2012: 221. DOI
C39. D. Bhowmik and C. Abhayaratne, “Robust watermarking for scalable image coding-based content adaptation”, in Proc. IET Conference on Image Processing (IPR2012), 2012: 223. DOI
C38. M. Oakes and C. Abhayaratne, “Visual saliency estimation for video”, in Proc. International Workshop on Image Analysis for Multimedia Interactive Services (WIAMIS), 2012. DOI
C37. 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.
C36. M. Majid and C. Abhayaratne, “Scalable multiple description video coding using successive refinement of side quantizers”, in Proc. Picture Coding Symposium (PCS 2010), December 2010.
C35. M. Majid and C. Abhayaratne, “Successive refinement of overlapped cell side quantizers for scalable multiple description coding”, in Proc. Picture Coding Symposium (PCS 2010), December 2010.
C34. D. Bhowmik and C. Abhayaratne, “Video watermarking using motion compensated t+2D+t filtering”, in Proc. ACM Workshop on Multimedia and Security (MMSec 2010), September 2010.
C33. 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), August 2010.
C32. M. Majid and C. Abhayaratne, “Fully scalable multiple description image coding”, in Proc. IEEE Multimedia Signal Processing Workshop (MMSP 2009), October 2009.
C31. M. Majid and C. Abhayaratne, “Distributed multiple description image coding”, in Proc. IEEE Multimedia Signal Processing Workshop (MMSP 2009), October 2009.
C30. M. Majid and C. Abhayaratne, “Multiple description scalar quantization with successive refinement”, in Proc. European Signal Processing Conference (EUSIPCO 2009), August 2009.
C29. 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), August 2009.
C28. 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.
C27. 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, January 2009.
C26. 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, January 2009.
C25. 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), January 2009.
C24. D. Bhowmik and C. Abhayaratne, “Evaluation of Watermark robustness to JPEG2000 based content adaptation attacks”, in Proc. IET/IEEE Visual Information Engineering (VIE), August 2008.
C23. C. Abhayaratne, “Content-adaptation resilient low level visual features for content based image retrieval”, in Proc. IET/IEEE Visual Information Engineering (VIE), August 2008.
C22. F. Muzammil and C. Abhayaratne, “Scalable domain visual feature extraction”, in Proc. 4th International Conference on Visual Media Production (CVMP), November 2007.
C21. D. Bhowmik and C. Abhayaratne, “A watermark evaluation bench for content adaptation modes”, in Proc. 4th International Conference on Visual Media Production (CVMP), November 2007.
C20. D. Bhowmik and C. Abhayaratne, “Morphological wavelet domain image watermarking”, in Proc. 15th European Signal Processing Conference (EUSIPCO), September 2007.
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), September 2005.
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), September 2005.
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.
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), December 2004.
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), December 2004.
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), October 2004.
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, August 2004. .
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.
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), September 2003.
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), September 2003.
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), September 2003.
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, August 2003.
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.
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.
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.
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.
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.
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), January 2001.
C1. G. C. K. Abhayaratne and D. M. Monro, “Embedded to lossless image coding (ELIC)”, in Proc. IEEE Nordic Signal Processing (NORSIG), June 2000.
Thesis
T1. C. Abhayaratne, “Lossless and Nearly Lossless Digital Video Coding”, PhD Thesis, Deptartment of Electronic and Electrical Engineering, University of Bath, UK, 2002.
Download (PDF, 1MB)
Other (standards contributions and research reports)
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, January 2005.
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, January 2005.
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.
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.
R1. G. C. K. Abhayaratne, I. Jermyn and J. Zerubia, “Probabilistic models of adaptive mother wavelets for texture description”, Research Report 8783, INRIA, France, December 2003.