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Hemantha Kodikara Arachchi

Hemantha Kodikara Arachchi

Principal Lecturer

School of Science & Technology


Dr Hemantha Kodikara Arachchi is a Senior Lecturer in Embedded Systems and Electronic Engineering.

Career overview

Dr Kodikara Arachchi completed his BSc (Eng.) (Hons.) and MPhil Degrees in Electronic and Telecommunication Engineering at University of Moratuwa, Sri Lanka in 1997 and 2000, respectively. He obtained a DEng degree in Telecommunication from Asian Institute of Technology, Thailand in 2004.

He joined NTU in January 2017 as a Senior Lecturer in Embedded Systems and Electronic Engineering. Prior to joining NTU, he was with Centre for Vision, Speech and Signal Processing (CVSSP), University of Surrey from 2006 as a Research Fellow and promoted to a Senior Research Fellow in 2014. From 2004 to 2006, Dr Kodikara Arachchi was with Brunel University as a Research Fellow and from 1997 to 2000, he was with University of Moratuwa as a lecturer in Electronic and Telecommunication Engineering. His research has been funded by EC and EPSRC. He is a member of IEEE and IET.

Research areas

Dr Kodikara Arachchi’s research interests are in video coding and communication area. He has been working on video coding, adaptation, quality, and interaction. He has published over 90 papers in reputed journals and international conferences.

During his research career, he has engaged in a number of national and international funded research projects in various capacities. Recently concluded EC FP7 funded ACTION-TV was developed based on his solution for enabling interactive video services and he served as a co-investigator and the technical coordinator of the project. He also actively contributed to other FP7 funded research projects including DIOMEDES, MUSCADE, and VISNET-II.

External activity

Dr Kodikara Arachchi has served as a reviewer for a number of reputed international journals in his areas of research from various published including IEEE, IET, SPIE, Springer and Elsevier.

He has acted as a session chair and programme committee member of many international conferences and also organised special sessions in leading conferences.
He has also given invited talks internationally at a number of universities, workshops and conferences.

Sponsors and collaborators

  • University of Surrey
  • Loughborough University
  • Fraunhofer HHI, Germany
  • INESC Porto
  • Universitat Politècnica de Catalunya, Spain
  • Universitat Pompeu Fabra, Spain
  • Disney Research, Zurich
  • Thales, UK
  • EC FP7 program


Selected journal

Content-Adaptive Feature-Based CU Size Prediction for Fast Low-Delay Video Encoding. Mallikarachchi T, Talagala DS, Kodikara Arachchi H and Fernando WAC, IEEE Transactions on Circuits and Systems for Video Technology, 2016

Extrinsic Information Modification in the Turbo Decoder by Exploiting Source Redundancies for HEVC Video Transmitted over a Mobile Channel. Perera R, Kodikara Arachchi H, Imran MA and Xiao P, IEEE Access, 2016, 4, 7186 – 7198

Optimized Resource Distribution for Interactive TV Applications,” IEEE Transactions on Consumer Electronics. Kulupana G, Talagala DS, Kodikara Arachchi H and Fernando WAC, 2015, 61 (3), 344–352

Toward an Impairment Metric for Stereoscopic Video: A Full-Reference Video Quality Metric to Assess Compressed Stereoscopic Video. De Silva V, Kodikara Arachchi H, Ekmekcioglu E and Kondoz AM, IEEE Transactions on Image Processing, 2013, 22 (9), 3392-3404

A Depth Map Post-Processing Technique for 3D-TV Systems based on Compression Artifact Analysis. De Silva V, Fernando WAC, Kodikara Arachchi H, Worrall ST, Kondoz AM, IEEE Journal of Selected Topics in Signal Processing, 2011, 5 (8)

Adaptation-aware encryption of scalable H.264/AVC video for content security. Kodikara Arachchi H, Perramon X, Dogan S and Kondoz AM, Elsevier Journal Signal Processing: Image Communication, Special Issue on Scalable coded media beyond compression, 2009, 24 (6), 468-483

Selected conference

A Feature Based Complexity Model for Decoder Complexity Optimized HEVC Video Encoding. Mallikarachchi T, Talagala DS, Kodikara Arachchi H, Fernando WAC, International Conference on Consumer Electronics, USA, 2017

Adaptive residual mapping for an efficient extension layer coding in two-layer HDR video coding. Mir J, Talagala DS, Kodikara Arachchi H, Fernando WAC, IEEE International Conference on Image Processing (ICIP), USA, 2016, 1394-1398

Adaptive Modulation and Coding based error resilience for transmission of compressed video. Perera R, Fernando A, Kodikara Arachchi H and Imran MA, 2015 International Wireless Communications and Mobile Computing Conference (IWCMC), Dubrovnik, 2015, 1127-1132

Decoder energy-aware intra-coded HEVC bit stream generation. Mallikarachchi T, Talagala DS, Kodikara Arachchi H, Fernando WAC, IEEE International Conference on Multimedia and Expo (ICME), USA, 2016, 1-6

Resource Allocation for Cloud-based Social TV Applications Using Particle Swarm Optimization. Kulupana G, Talagala DS, Kodikara Arachchi H and Fernando A, IEEE International conference on communication, UK, 2015

See all of Hemantha Kodikara Arachchi's publications...