All Stories

  1. Exploration of verbal descriptions and dynamic indoors environments for people with sight loss

    Article • April 2023, ACM (Association for Computing Machinery)

    Charith Abhayaratne

  2. GHOSM: Graph-based Hybrid Outline and Skeleton Modelling for Shape Recognition

    Article • ACM Transactions on Multimedia Computing Communications and Applications, February 2023, ACM (Association for Computing Machinery)

    Basheer Alwaely, Charith Abhayaratne

  3. Making Sense of Neuromorphic Event Data for Human Action Recognition

    Article • IEEE Access, January 2021, Institute of Electrical & Electronics Engineers (IEEE)

    Charith Abhayaratne

  4. AGSF: Adaptive Graph Formulation and Hand-Crafted Graph Spectral Features for Shape Representation

    Article • IEEE Access, January 2020, Institute of Electrical & Electronics Engineers (IEEE)

    Charith Abhayaratne

  5. Modeling Temporal Visual Salience for Human Action Recognition Enabled Visual Anonymity Preservation

    Article • IEEE Access, January 2020, Institute of Electrical & Electronics Engineers (IEEE)

    Charith Abhayaratne

  6. Embedding Distortion Analysis in Wavelet-domain Watermarking

    Article • ACM Transactions on Multimedia Computing Communications and Applications, November 2019, ACM (Association for Computing Machinery)

    Deepayan Bhowmik, Charith Abhayaratne

  7. Referenced compressed sensing for accurate and fast spatio-temporal signal reconstruction

    Article • Journal of Electronic Imaging, July 2019, SPIE

    Charith Abhayaratne

  8. Graph Spectral Domain Feature Learning With Application to in-Air Hand-Drawn Number and Shape Recognition

    Article • IEEE Access, January 2019, Institute of Electrical & Electronics Engineers (IEEE)

    Charith Abhayaratne

  9. Global motion compensated visual attention-based video watermarking

    Article • Journal of Electronic Imaging, December 2016, SPIE

    Charith Abhayaratne

  10. Quality Scalability Aware Watermarking for Visual Content

    Article • IEEE Transactions on Image Processing, November 2016, Institute of Electrical & Electronics Engineers (IEEE)

    Charith Abhayaratne

  11. Automated background subtraction technique for electron energy-loss spectroscopy and application to semiconductor heterostructures

    Article • Journal of Microscopy, March 2016, Wiley

    Charith Abhayaratne

  12. Visual Attention-Based Image Watermarking

    Article • IEEE Access, January 2016, Institute of Electrical & Electronics Engineers (IEEE)

    Charith Abhayaratne

  13. Video-based activity level recognition for assisted living using motion features

    Article • September 2015, ACM (Association for Computing Machinery)

    Charith Abhayaratne

  14. Mapping-free high dynamic range image compression

    Article • September 2015, Institute of Electrical & Electronics Engineers (IEEE)

    Charith Abhayaratne

  15. Real-time recognition of activity levels for ambient assisted living

    Article • September 2015, Institute of Electrical & Electronics Engineers (IEEE)

    Charith Abhayaratne

  16. Multi-scale dithering for contouring artefacts removal in compressed UHD video sequences

    Article • December 2014, Institute of Electrical & Electronics Engineers (IEEE)

    Charith Abhayaratne

  17. Running Gaussian reference-based reconstruction for video compressed sensing

    Article • May 2014, Institute of Electrical & Electronics Engineers (IEEE)

    Charith Abhayaratne

  18. A New Saliency Model Using Intra Coded High Efficiency Video Coding (HEVC) Frames

    Article • January 2014, Springer Science + Business Media

    Charith Abhayaratne

  19. On robustness against JPEG2000: a performance evaluation of wavelet-based watermarking techniques

    Article • Multimedia Systems, September 2013, Springer Science + Business Media

    Charith Abhayaratne

  20. Kinect depth stream pre-processing for hand gesture recognition

    Article • September 2013, Institute of Electrical & Electronics Engineers (IEEE)

    Charith Abhayaratne

  21. Classification of Remotely Compressively Sensed Data

    Article • January 2013, the Institution of Engineering and Technology (the IET)

    Charith Abhayaratne

  22. Fast compressed sensing reconstruction using the least squares and signal correlation

    Article • January 2013, the Institution of Engineering and Technology (the IET)

    Charith Abhayaratne

  23. Redundancy controllable scalable unbalanced multiple description bitstream generation for peer-to-peer video streaming

    Article • Signal Processing Image Communication, May 2012, Elsevier

    Charith Abhayaratne

  24. Visual saliency estimation for video

    Article • May 2012, Institute of Electrical & Electronics Engineers (IEEE)

    Charith Abhayaratne

  25. 2D+t Wavelet Domain Video Watermarking

    Article • Advances in Multimedia, January 2012, Hindawi Publishing Corporation

    Charith Abhayaratne

  26. Distortion constrained robustness scalable watermarking

    Article • January 2012, the Institution of Engineering and Technology (the IET)

    Charith Abhayaratne

  27. Robust watermarking for scalable image coding-based content adaptation

    Article • January 2012, the Institution of Engineering and Technology (the IET)

    Charith Abhayaratne

  28. Scalable watermark extraction for real-time authentication of JPEG 2000 images

    Article • Journal of Real-Time Image Processing, August 2011, Springer Science + Business Media

    Charith Abhayaratne

  29. Reversible wavelet filter banks with side informationless spatially adaptive low-pass filters

    Article • Journal of Electronic Imaging, July 2011, SPIE

    Charith Abhayaratne

  30. Visual attention-based watermarking

    Article • May 2011, Institute of Electrical & Electronics Engineers (IEEE)

    Charith Abhayaratne

  31. Video based technology for ambient assisted living: A review of the literature

    Article • Journal of Ambient Intelligence and Smart Environments, January 2011, IOS Press

    Charith Abhayaratne

  32. Scalable multiple description video coding using successive refinement of side quantizers

    Article • December 2010, Institute of Electrical & Electronics Engineers (IEEE)

    Charith Abhayaratne

  33. Successive refinement of overlapped cell side quantizers for scalable multiple description coding

    Article • December 2010, Institute of Electrical & Electronics Engineers (IEEE)

    Charith Abhayaratne

  34. Video watermarking using motion compensated 2D+t+2D filtering

    Article • January 2010, ACM (Association for Computing Machinery)

    Charith Abhayaratne

  35. Distributed multiple description image coding

    Article • October 2009, Institute of Electrical & Electronics Engineers (IEEE)

    Charith Abhayaratne

  36. Fully scalable multiple description image coding

    Article • October 2009, Institute of Electrical & Electronics Engineers (IEEE)

    Charith Abhayaratne

  37. Special issue on scalable coded media beyond compression

    Article • Signal Processing Image Communication, July 2009, Elsevier

    Charith Abhayaratne

  38. The effect of quality scalable image compression on robust watermarking

    Article • July 2009, Institute of Electrical & Electronics Engineers (IEEE)

    Charith Abhayaratne

  39. A framework for evaluating wavelet based watermarking for scalable coded digital item adaptation attacks

    Article • February 2009, SPIE

    Charith Abhayaratne

  40. Embedding distortion modeling for non-orthonormal wavelet based watermarking schemes

    Article • February 2009, SPIE

    Charith Abhayaratne

  41. Multiple description image coding using several multiple description scalar quantizers

    Article • January 2009, SPIE

    Charith Abhayaratne

  42. A Generalised Model for Distortion Performance Analysis of Wavelet Based Watermarking

    Article • January 2009, Springer Science + Business Media

    Charith Abhayaratne

  43. Robust Visual Content Representation Using Compression Modes Driven Low-level Visual Descriptors

    Article • January 2009, Springer Science + Business Media

    Charith Abhayaratne

  44. Content adaptation resilient low-level visual features for content based image retrieval

    Article • January 2008, the Institution of Engineering and Technology (the IET)

    Charith Abhayaratne

  45. Evaluation of watermark robustness to JPEG2000 based content adaptation attacks

    Article • January 2008, the Institution of Engineering and Technology (the IET)

    Charith Abhayaratne

  46. Reversible integer-to-integer mapping of -point orthonormal block transforms

    Article • Signal Processing, May 2007, Elsevier

    Charith Abhayaratne

  47. Watermark evaluation bench for content adaptation modes

    Article • January 2007, the Institution of Engineering and Technology (the IET)

    Charith Abhayaratne

  48. Scalable coded domain low-level visual feature extraction

    Article • January 2007, the Institution of Engineering and Technology (the IET)

    Charith Abhayaratne

  49. Scalable near-lossless image coding

    Article • Journal of Electronic Imaging, October 2006, SPIE

    Charith Abhayaratne

  50. Reducing aliasing in wavelets based downsampling for improved resolution scalability

    Article • January 2005, Institute of Electrical & Electronics Engineers (IEEE)

    Charith Abhayaratne

  51. Texture-adaptive mother wavelet selection for texture analysis

    Article • January 2005, Institute of Electrical & Electronics Engineers (IEEE)

    Charith Abhayaratne

  52. <title>Modifying integer wavelet transforms for scalable near-lossless image coding</title>

    Article • June 2003, SPIE

    Charith Abhayaratne

  53. <title>Orthonormal integer block transforms for lossless coding: design and performance analysis</title>

    Article • June 2003, SPIE

    Charith Abhayaratne

  54. <title>Embedded-to-lossless coding of motion-compensated prediction residuals in lossless video coding</title>

    Article • December 2000, SPIE

    Charith Abhayaratne