Professor R.G.N. Meegama

Ravinda Meegama is a Senior Professor in Computer Science at the Department of Computer Science, Faculty of Applied Sciences, University of Sri Jayewardenepura, Sri Lanka. He has BSc degree (First Class) in Computer Science from University of Colombo, Sri Lanka, MSc from AIT, Thailand and PhD from NTU, Singapore. His research interests primarily focus on exploring the intersection of image processing and artificial intelligence. This work involves developing novel algorithms and models for tasks such as image segmentation, object detection, image recognition and medical image analysis. By leveraging the power of AI, Professor Meegama aims to address complex challenges in fields like computer vision, healthcare and autonomous systems. He has published extensively in top-tier journals and conferences and their research has been recognized with numerous awards and honors. He is actively involved in the academic community mentoring graduate and undergraduate students. Lately, he has also been deeply intrigued by subjects such as human evolution, galaxies and cosmology, reflecting broad intellectual curiosity beyond core research areas.

Publications

S. Nanayakkara and R.G.N. Meegama, A deep learning approach for scoring quality in vehicle grading, Engineering Applications of Artificial Intelligence, vol. 131, 2024. [pdf]
A. Ramasinghe and R.G.N. Meegama, Real-Time Subtitle Generator for Sinhala Speech, Current Scientia, vol. 26, no. 2, pp. 40 – 56, 2023. [pdf]
S.B. Adikari, N. Ganegoda, RGN Meegama and I.L. Wanniarachchi, Improved Mesh Reconstruction With an Edge Quality Enhancement Using Multiple Inward Depth Streams, IEEE Access, vol. 10, pp. 98391 – 98402, 2022. [pdf]
S. Firdose, S.S Kumar and R.G.N. Meegama, A novel predictive model for capturing threats for facilitating effective social distancing in COVID-19, International Journal of Electrical and Computer Engineering, vol. 12, no. 1, pp. 596-604, 2022. [pdf]
S.B. Adikari, N.C. Ganegoda, R.G.N. Meegama and I.L. Wanniarachchi, Applicability of a Single Depth Sensor in Real-Time 3D Clothes Simulation: Augmented Reality Virtual Dressing Room Using Kinect Sensor, Advances in Human-Computer Interaction, vol. 2020, 1314598, 2020. [pdf]
R.V.S.P.K. Ranatunga, H.M.S. Priyanath and R.G.N. Meegama, Digital Literacy, Business Uncertainty & Economic Performance: An Empirical Study of Small Businesses in Sri Lanka, International Journal of Academic Research in Business and Social Sciences, vol. 10, no 5, pp. 51-76, 2020. [pdf]
R.V.S.P.K. Ranatunga, H.M.S. Priyanath and R.G.N. Meegama, Methods and Rule-of-Thumbs in The Determination of Minimum Sample Size When Appling Structural Equation Modelling: A Review, International Journal of Social Science Research, vol. 15, pp. 102-109, 2020. [pdf]
H.B.A.C. Pradeep and R.G.N. Meegama, Age and Gender Related Variations in Human EEG Signals, International Journal of Digital Signals and Smart Systems, vol. 4, no.1, pp. 87-99, 2020. [pdf]
M. Punchimudiyanse and R.G.N. Meegama, Animation of Fingerspelled Words and Number Signs of the Sinhala Sign Language, ACM Transactions on Asian and Low Resource Language Information Processing, vol. 16, no. 4, 2017. [pdf]
T.M.K.K. Jinasena, R.G.N. Meegama and R.B Marasinghe, Access Control of Medical Images using Elliptic Curve Cryptography through Effective Multi-Key Management in a Mobile Multicasting Environment, Journal of Computer Science and Engineering, vol. 7, no.1, pp. 1-11, 2017. [pdf]
H.K.S. Premadasa and R.G.N. Meegama, Two-way Text Messaging: An Interactive Mobile Learning Environment in Higher Education, Research in Learning Technology, vol. 24, 31818, 2016. [pdf]
A. Niroshika and R.G.N. Meegama, BLAID: Boundaries from Locally Adaptive Isotropic Detection, Image and Vision Computing, vol. 51, pp. 49-57, 2016. [pdf]
A. Niroshika, R.G.N. Meegama, R.S. Lokupitiya and D.K.S. Kannangara, Active Contours with Prior Corner Detection to Extract Discontinuous Boundaries of Anatomical Structures in X-ray Images, IET Image Processing, vol. 9, no. 3, pp. 202-210, 2015. [pdf]
M.D.R. Perera, R.G.N. Meegama and M.K. Jayananda, FPGA Based Single Chip Solution with 1-Wire Protocol for the Design of Smart Sensor Nodes, Journal of Sensors, 2014. [pdf]
H.K.S. Premadasa and R.G.N. Meegama, Mobile Learning Environment with Short Messaging Service: Application to a Campus Environment in a Developing Country, Campus-Wide Information Systems, vol. 30, no. 2, pp. 106-123, 2013. [pdf]
R.H.N.G. Ranamuka and R.G.N. Meegama, Detection of Hard Exudates from Diabetic Retinopathy Images Using Fuzzy Logic, IET Image Processing, vol. 7, no. 2, pp. 121-130, 2013. [pdf]
KAG Udeshani, RGN Meegama and TGI Fernando, Statistical Feature-based Neural Network Approach for the Detection of Lung Cancer in Chest X-Ray Images, International Journal of Image Processing, vol. 5, no. 4, pp. 425 – 434, 2011. [pdf]
K.K. Jinasena and R.G.N. Meegama, Design of a Low Cost Autonomous Mobile Robot, International Journal of Intelligent Systems and Applications in Robotics, vol. 2, no. 1, pp. 1-13, 2011. [pdf]
R.G.N. Meegama and J.C. Rajapakse, NURBS-Based Visualization of Age-related Diversity in Cortical Morphology, Journal of Visualization, vol. 9, no. 1, pp. 9-11, 2006. [pdf]
R.G.N. Meegama and J.C. Rajapakse, Fully Automated Peeling Technique for T1-Weighted High Quality MR Head Scans, International Journal of Image and Graphics, vol. 4, no. 2, pp. 141-156, 2004. [pdf]
R.G.N. Meegama and J.C. Rajapakse, NURBS Snakes, Image and Vision Computing, vol. 21, no. 6, pp. 551-562, 2003. [pdf]
R.G.N. Meegama and J.C. Rajapakse, NURBS-Based Segmentation of the Brain in Medical Images, International Journal of Pattern Recognition and Artificial Intelligence, vol. 17, no. 6, pp. 995-1009, 2003. [pdf]
R.M.N.B. Ratnayake and R.G.N Meegama, Low-cost Heterogeneous Computer Network, Sabaragamuwa University Journal, vol. 4, pp. 63-67, 2004.
R.G.N. Meegama, Computer Modeling of Noise Transmission, Sabaragamuwa University Journal, vol. 1, pp. 55-58, 1998.

C. Hettiarachchi and R.G.N. Meegama, Fine-Tuning Vision Transformers for Real-Time Pest Classification in Urban Environments, 9th IEEE SLAII International Conference on Artificial Intelligence, Colombo, 2025. [pdf]
A. Gunathilaka and R.G.N. Meegama, Unified Detection of Generated Speech: Combining Audio Spectrogram and Text Analysis, International Conference on ICT for Emerging Regions (ICter), Colombo, 2025.
S. Windsor and R.G.N. Meegama, A Hybrid Adaptive Segmentation Pipeline with NURBS Surface Reconstruction for 3D Liver Tumor Modeling, International Conference on ICT for Emerging Regions (ICTer), Colombo, 2025.
T.A.G.K. Thenuwara, S. Kandeepan, R.G.N. Meegama, K.K.D.L. Ruvinda and B.M.A.T. Banneheka, Machine Learning Approach to Reduce Lead Ball Artifacts in Pelvic CT Images, International Conference on Innovation and Emerging Technologies (ICIET), Colombo, 2025.
R.G.C. Upeksha and R.G.N. Meegama, An Analysis of Switchport Vulnerabilities and MTD Techniques Applied to Mitigate the Port Scanning Threats, 2nd International Conference on Advanced Computing Technologies, Colombo, 2025.
K. Nadeeshani and R.G.N. Meegama, Prototype to Detect the Alcohol Content of Local Toddy Based on an Electronic Nose, 24th ICTer, Colombo, 2024.
T.M. Embuldeniya and R.G.N. Meegama, Modified Discrete Wavelet Transformation to Compress DICOM Medical Images with Run-Length Encoding, 24th ICTer, Colombo, 2024.
R. Abeysekera and R.G.N. Meegama, An RSVM-based Handwriting Analysis for Personality Prediction, International Conference on Innovation and Emerging Technologies, Colombo, 2022.
S. Nanayakkara and R.G.N. Meegama, A Deep Learning Approach for Scoring Quality in Vehicle Grading, International Conference on Innovation and Emerging Technologies, Colombo, 2022.
S. Nanayakkara and R.G.N. Meegama, Car Exterior Components Identification Based on Object Detection, International Conference on Innovation and Emerging Technologies, Colombo, 2022.
G.K.H. Thondilege, G.H.J. Lanel and R.G.N. Meegama, Numerical Approach for Improved Median Filter, International Conference on Innovations in Info-business & Technology (ICIIT 2022), Colombo, 2022.
S. Amarasekara and R.G.N. Meegama, Convolutional Neural Network for Classification and Value Estimation of Selected Gem Stones in Sri Lanka, International Conference on Advances in Computing and Technology, Colombo, 2021.
W.M.H.I. Weerakoon and R.G.N. Meegama, Convolutional Neural Network to Reproduce Selfie Images after Removing Supportive Hand, IEEE International Conference on Information Technology Research, Colombo, 2021.
S.D. Hettiarachchi and R.G.N. Meegama, Machine Learning Approach for Real-Time Translation of Sinhala Sign Language into Text, International Conference on Advances in Computing and Technology, Colombo, 2020.
M. Samarasinghe, R.G.N. Meegama and M. Punchimudiyanse, Machine Learning Approach for the Detection of Hate Speech in Sinhala Unicode Text, IEEE International Conference on ICT for Emerging Regions, Colombo, 2020.
S.A. Nanayakkara and R.G.N. Meegama, Automatic Motion Artefacts Recognition in Resting ECG/EKG Using Machine Learning, 4th International Conference on Advances in Computing and Technology, Sri Lanka, 2019.
H.B.A.C. Pradeep, R.G.N. Meegama and S. Kalinga, 3D Visualization of Human EEG Signals, 4th International Conference on Advances in Computing and Technology, Sri Lanka, 2019.
A. Ruwanpathirana and R.G.N. Meegama, Android-based Home Gardening Companion, 5th International Conference on Agriculture, Colombo, 2018.
T.M.K.K. Jinasena, R.G.N. Meegama and R.B. Marasinghe, A Novel Elliptic Curve-based Multi-key Encryption Method for Multicasting Single Content, International Research Conference of Kotelawala Defence University, Sri Lanka, 2018.
H.B.A.C. Pradeep and R.G.N. Meegama, Age and Gender Related Variations in Human EEG Signals, International Conference on Advances in Computing and Technology, Colombo, 2018.
K. Jinasena, R.G.N. Meegama and R.B. Marasinghe, Digital Certificate Management System for eHealth and mHealth Practitioners, International Research Conference of Kotelawala Defence University, Sri Lanka, 2017.
H.B.A.C. Pradeep and R.G.N. Meegama, Quantitative Analysis of EEG Signal Patterns with Respect to Age and Gender, 3rd International Conference on Engineering and Technology, Colombo, 2017.
M.P. Perera et al., R.G.N. Meegama, Estimation of Carbon Fluxes for the South Asian Region Using MLEF, 5th International Conference on Earth Science & Climate Change, Bangkok, 2017.
M.P. Perera et al., R.G.N. Meegama, Estimation of Asian and Global Carbon Fluxes Using MLEF, International Conference on Climate Change, Colombo, 2017.
P.B. Samaranayake and R.G.N. Meegama, An Effective Approach to Compress 2D DICOM Human Brain Images, Asia-Pacific Conference on Multidisciplinary Research, Colombo, 2017.
42. H.K.H.S. Atapattu and R.G.N. Meegama, Wearable Device for the Visually Impaired to Detect Sri Lankan Currency Notes, Asia-Pacific Conference on Multidisciplinary Research, Colombo, 2017.
T.M.K.K. Jinasena, R.G.N. Meegama and R. Marasinghe, Teleradiology in Emergencies, Australasian Telehealth Society Meeting, Auckland, 2016.
T.M.K.K. Jinasena, R.G.N. Meegama and R. Marasinghe, Secure Collaborative Mobile Platform for Medical Images, KDU Research Conference, Sri Lanka, 2016.
M. Punchimudiyanse and R.G.N. Meegama, Web-based Automated Speech-to-Text Translator for Sinhala, National IT Conference, Colombo, 2016.
M. Punchimudiyanse and R.G.N. Meegama, 3D Signing Avatar for Sinhala Sign Language, IEEE International Conference on Industrial and Information Systems, Kandy, Sri Lanka, 2015.
M. Punchimudiyanse and R.G.N. Meegama, Unicode Sinhala and Phonetic English Bi-directional Conversion for Sinhala Speech Recognizer, IEEE International Conference on Industrial and Information Systems, Kandy, Sri Lanka, 2015.
A.N.K. Angulagamuwa, M.D.R. Perera and R.G.N. Meegama, Mobile Sensor Node for Real-Time Monitoring of pH Level in Domestic Water Resources, Annual Conference on Innovation and Technology for Sustainable Development, Colombo, Sri Lanka, 2015.
M.K.H. Gunasekera and R.G.N. Meegama, Real-Time Translation of Discrete Sinhala Speech to Unicode Text, IEEE International Conference on ICT for Emerging Regions, Colombo, Sri Lanka, 2015.
K.A.D.Y.L. Kuruppuarachchi, M.D.R. Perera and R.G.N. Meegama, Wireless Sensor Node for Simultaneous Monitoring of Health Parameters, IEEE International Conference on ICT for Emerging Regions, Colombo, Sri Lanka, 2015.
R.G.N. Meegama, N. Upeksha and S. Wickremasinghe, Use of Cloud-Based Services for Higher Education in Developing Countries, International Conference on Education and Distance Learning, Colombo, Sri Lanka, 2015.
H.B.A.C. Pradeep, R.G. Nandana, R. Thirimawithana and R.G.N. Meegama, Location-Aware Real-Time Oceanographic Model to Prevent Coastal Drowning, International Conference on Emerging Trends in Engineering, Technology and Science, Hyderabad, India, 2015.
M. Punchimudiyanse and R.G.N. Meegama, 3D Animation Framework for Sign Language, International Conference on Engineering and Technology, Colombo, Sri Lanka, 2015. [pdf]
A. Niroshika and R.G.N. Meegama, Locally Adaptive Isotropic Detection of Corners in Object Boundaries, IEEE International Conference on ICT for Emerging Regions, Colombo, Sri Lanka, 2014.
K.K.O.S. Gunarathne, R.G.N. Meegama and J. Herath, Dynamic 3D Modelling of the Human Left Ventricle, IEEE International Conference on ICT for Emerging Regions, Colombo, Sri Lanka, 2014. [pdf]
H.B.A.C. Pradeep, M.D.R. Perera and R.G.N. Meegama, Wireless Sensor Node with GPS-enabled Peer Alerting Service for Real-Time Monitoring of Heart Rate Variability, International Conference on Advances in Electrical and Information Engineering, 2014. [pdf]
K.S. Dasun and R.G.N. Meegama, Android-based Mobile Framework for Navigating Ultrasound and Vision Guided Autonomous Robotic Vehicle, International Conference on Advances in Electrical and Information Engineering, Colombo, Sri Lanka, 2014. [pdf]
M.H.S.P. Kumara and R.G.N. Meegama, Active Contour-based Segmentation and Removal of Optic Disk from Retinal Images, IEEE International Conference on ICT for Emerging Regions, Colombo, 2013.
A. Niroshika and R.G.N. Meegama, Deformable Model to Segment Discontinuous Boundaries of Bone Fractures in X-ray Images, 8th IEEE International Conference on Industrial and Information Systems, 2013. [pdf]
H.K.S. Premadasa and R.G.N. Meegama, Extensive Compression of Text Messages in Interactive Mobile Communication, IEEE International Conference on ICT for Emerging Regions, Colombo, Sri Lanka, 2013.
M.D.R. Perera, R.G.N. Meegama and M.K. Jayananda, A Single-Chip Solution with 1-Wire Communication Protocol to Interface Transducers to Sensor Networks, 36th Asia Pacific Advanced Network Research Workshop, Daejeon, Korea, 2013. [pdf]
22. H.K.S. Premadasa and R.G.N. Meegama, Implementation of Concatenated Short Messaging Service in a Campus Environment, IEEE International Conference on Computer Science and Education, Colombo, Sri Lanka, 2013.
U.A.A. Niroshika, R.G.N. Meegama and T.G.I. Fernando, Active Contour Model to Extract Boundaries of Teeth in Dental X-Ray Images, IEEE International Conference on Computer Science and Education, Colombo, Sri Lanka, 2013. [pdf]
M.D.R. Perera, R.G.N. Meegama and M.K. Jayananda, A Single-Chip Solution for Interfacing Transducers to Sensor Networks Using FPGAs, IEEE International Conference on Computer Science and Education, Colombo, Sri Lanka, 2013.
H.K.S. Premadasa and R.G.N. Meegama, Transmission of Concealed Data in Short Messaging Service, 2nd National Conference on Technology and Management, Colombo, Sri Lanka, 2013.
A. Niroshika and R.G.N. Meegama, Active Contour Model for the Detection of Sharp Corners in Image Boundaries, 2nd National Conference on Technology and Management, Colombo, Sri Lanka, 2013.
H.K.S. Premadasa and R.G.N. Meegama, Concealed Data in Two-Way Text Messaging: A Framework for Interactive Mobile Learning Environment, IEEE International Conference on ICT for Emerging Regions, Colombo, Sri Lanka, 2012.
A. Niroshika and R.G.N. Meegama, Active Contours with Prior Corner Detection, International Conference on Machine Vision, Image Processing and Pattern Analysis, Kuala Lumpur, Malaysia, 2012. [pdf]
R.H.N.G. Ranamuka and R.G.N. Meegama, Detection of Hard Exudates from Diabetic Retinopathy Images Using Fuzzy Logic, 1st National Conference on Technology and Management, Colombo, 2012.
H.K.S. Premadasa and R.G.N. Meegama, Mobile Learning Environment with Short Messaging Service, 1st National Conference on Technology and Management, Colombo, 2012.
S.P.K. Ranatunga and R.G.N. Meegama, A .NET Framework for University Administration, International Symposium, Sabaragamuwa University, 2006.
D. Jayathilaka, N. Liyanage and R.G.N. Meegama, An Open-Source Web-Based E-learning Development Technique, International Symposium, Sabaragamuwa University, 2006.
C. Hettiarachchi, M. Nanayakkara, R. Kumara, S. Vasanthapriyan and R.G.N. Meegama, Dynamic Web Content for Sabaragamuwa University, International Symposium, Sabaragamuwa University, 2006.
R.G.N. Meegama, J.C. Rajapakse, S.S. Kim and L.H. Ling, Extraction of Left Ventricular Cavity from Echo-cardiograph Images by Bayesian and NURBS Modeling, International Symposium, Sabaragamuwa University, 2006.
D. Jayatilleke and R.G.N. Meegama, Multi-spectral Image Analysis and NURBS-Based Visualization of Land Maps, WSEAS International Conference on Applied Computer Science, China, 2006.
R.G.N. Meegama and J.C. Rajapakse, Curvature-Based Rational Surface Model for the Detection of Age and Gender-Related Diversity in Cortical Morphology, IEEE International Symposium on Image, Signal Processing and Analysis, Italy, 2003.
R.G.N. Meegama and J.C. Rajapakse, NURBS-Based Segmentation Technique for MR Head Scans, Indian Conference on Vision, Graphics and Image Processing, pp. 376–381, India, 2002.
J.C. Rajapakse, R.G.N. Meegama and L.S. Ho, NURBS-Based Analysis of Gender-Related Variability of the Human Brain Surface, IEEE International Conference on Automation, Robotics and Vision, Singapore, 2002.
R.G.N. Meegama and J.C. Rajapakse, NURBS-Based Detection of Age-Related Variability of the Human Brain Surface, IEEE International Conference on Neural Information Processing, Singapore, 2002.
R.G.N. Meegama and J.C. Rajapakse, Active Contours: Recent Developments and a New Rational Approach to Segment Digital Images, Digital Image Computing Techniques and Applications, Melbourne, Australia, 2002.
R.G.N. Meegama and J.C. Rajapakse, NURBS Snakes, IEEE International Conference on Neural Information Processing, Shanghai, China, 2001.
R.G.N. Meegama, J.C. Rajapakse, N.M.I. Lundbom and K. Vuori, Fully Automated Peeling Technique for MR Head Scans, IEEE International Conference on Information, Communications and Signal Processing, Singapore, 2001.
R.G.N. Meegama and J.C. Rajapakse, NURBS-Based Modeling of the Human Brain Surface, IEEE International Conference on Information, Communications and Signal Processing, Singapore, 2001.

T.A.G.K. Thenuwara, S. Kandeepan, R.G.N. Meegama and K.K.D.L. Ruvinda, Evaluation of Dosimetric Impact of Lead Ball Marker Artifacts in Pelvic EBRT Treatment Planning, Proceedings of the Postgraduate Institute of Science Research Congress, Sri Lanka, 2025.
T.M.K.K. Jinasena and R.G.N. Meegama, Autonomous Robot with Modulated IR Sensors, 50th Anniversary Academic Conference, University of Sri Jayewardenepura, 2009.
M.N. Nanayakkara, R.G.N. Meegama and A. Madurapperuma, Secure Online Access Method for Teaching Artificial Intelligence, International Symposium, Sabaragamuwa University, 2008.
A.C.P.K. Siriwardena, R.G.N. Meegama and K.M. Liyanage, Noise Intensity Level Calculation System, 6th Annual Sessions, Faculty of Applied Sciences, Sabaragamuwa University, Sri Lanka, 2004.
J.J.D. Kaluarachchi, R.G.N. Meegama and G.A. Dharmadasa, Online Customer Service for Cargo Stores of Sri Lanka Ports Authority, 6th Annual Sessions, Faculty of Applied Sciences, Sabaragamuwa University, Sri Lanka, 2004.
E.M.S.A. Gunasinghe, R.G.N. Meegama and K.M. Liyanage, Implementation of an Intrusion Detection System, 6th Annual Sessions, Faculty of Applied Sciences, Sabaragamuwa University, Sri Lanka, 2004.
D.A.V. Wijesinghe, J.B. Ekanayake and R.G.N. Meegama, Web-based Students Information System, 6th Annual Sessions, Faculty of Applied Sciences, Sabaragamuwa University, Sri Lanka, 2004.

D. R. Perera, R.A.D.D. Dharmasiri, K.S. Mannatunga, R.G.N. Meegama and K. Jayananda, Implementation of a Smart Sensor Node for Wireless Sensor Network Applications Using FPGAs in Field-Programmable Gate Array (FPGA) Technologies for High Performance Instrumentation, J.D.D. Gazzaano, et.al, Eds, IGI Global, 2016. [Order Online]

R.G.N. Meegama, The Palk Strait Imperative: Why Sri Lanka Must Rebuild the Bridge to India, The Sunday Times, 04 Jan. 2026, link
R.G.N. Meegama, The ‘Governance Hazard Window’: From Election to Emergency, Financial Times, December 2025, link
R.G.N. Meegama, Beyond the Ground Station: Why Space Data Centers Require a Distributed RAID, SpaceNews, December 2025, link
R.G.N. Meegama, Open Source Accounting Software, Accounting Technician, Association of Accounting Technicians (AAT), Sri Lanka, 2010.

Contact

Department of Computer Science
Faculty of Applied Sciences
University of Sri Jayewardenepura
Sri Lanka
Email: rgn@sjp.ac.lk