Niroshika A, Meegama RGN. BLAID: Boundaries from Locally Adaptive Isotropic Detection. Image and Vision Computing [Internet]. 2016. Publisher's VersionAbstract
Detection of corners is an important task in computer vision to capture discontinuous boundaries of objects of interest. Present operators designed to detect boundaries having sharp corners often produce unsatisfactory results because the points detected can also be an isolated point, ending of a thin line or a maximum curvature region of a planar curve. A novel corner detection operator, capable of detecting corner points that exist only on the boundary of an object, is presented in this paper. Initially, candidate corner points are detected by exploiting intensity information of the local neighborhood and associated connectivity pattern around the center point within a local window.  Further verification is done to confirm whether the detected corner point is on the boundary of the targeted object. As the proposed operator is isotropic, it covers all the orientations and corner angles by performing a single computation step within the local window. The performance of the operator is tested with both synthetic and real images and the results are compared with other major corner detectors
Punchimudiyanse M, Meegama RGN. 3D signing avatar for Sinhala Sign language, in 2015 IEEE 10th International Conference on Industrial and Information Systems (ICIIS). IEEE; 2015:290–295.
Angulgamuwa ANK, Perera MDR, Meegama RGN. Mobile Sensor Node for Real Time Monitoring of pH Level in Domestic Water Resources. 2015.
Punchimudiyanse M, Meegama RGN. Unicode Sinhala and phonetic English bi-directional conversion for Sinhala speech recognizer, in 2015 IEEE 10th International Conference on Industrial and Information Systems (ICIIS). IEEE; 2015:296–301.
Meegama RGN, Punchimudiyanse M. 3D Animation framework for sign language. 2015.
Pradeep HBAC, Nandana RG, Meegama RGN, Thirimawithana R. Location-Aware Real Time Oceanographic Model to Prevent Coastal Drowning. 2015.
gunasekerameegama. real time translation of discrete sinhala speech to unicode text, in ; 2015.
Upeksha N, Meegam G, Wickremasinghe S. Use of cloud-based services for higher education in developing countries. 2015.
Kuruppuarachchi KADYL, Perera MDR, Meegama RGN. Wireless Sensor Node for Simultaneous Monitoring of Health Parameters. 2015.
Niroshika A, Meegama RGN, Lokupitiya RS, Kannangara DKS. Active Contours with Prior Corner Detection to Extract Discontinuous Boundaries of Anatomical Structures in X-ray Images. IET Image Processing [Internet]. 2015;9(3):202-210. Publisher's VersionAbstract
Active contours are a form of curves that deforms according to an energy minimising function and are widely used in computer vision and image processing applications to extract features of interests from raw images acquired using an image capturing device. One of the major limitations in active contours is its inability to converge accurately when the object of interest exhibits sharp corners. In this paper, a new technique of active contour model to extract boundaries of objects having sharp corners is presented. By incorporating a priori knowledge of significant corners of the object into the deforming contour, the proposed active contour is able to deform towards the boundaries of the object without surpassing the corners. The ability of the new technique to accurately extract features of interest of anatomical structures in medical X-ray images having sharp corners is demonstrated. 
Meegama RGN, Dasun KS. Android-based Mobile Framework for Navigating Ultrasound and Vision Guided Autonomous Robotic Vehicle. 2014.
Gunarathne KKOS, Meegama RGN, Herath J. Dynamic 3D modelling of the human left ventricle, in Advances in ICT for Emerging Regions (ICTer), 2014 International Conference on. IEEE; 2014:10–14.
Niroshika UAA, Meegama RGN. Locally adaptive isotropic detection of corners in object boundaries, in Advances in ICT for Emerging Regions (ICTer), 2014 International Conference on. IEEE; 2014:15–20.
Pradeep HBAC, Perera MDR, Meegam RGN. Wireless Sensor Node with GPS-enabled Peer Alerting Service for Real Time Monitoring of Heart Rate Variability. 2014.
Perera MDR, Meegama RGN, Jayananda MK. FPGA Based Single Chip Solution with 1-Wire Protocol for the Design of Smart Sensor Nodes. Journal of Sensors [Internet]. 2014;2014. Publisher's VersionAbstract
Applications that involve monitoring of water quality parameters require measuring devices to be placed at different geographical locations but are controlled centrally at a remote site. The measuring devices in such applications need to be small, consume low power, and must be capable of local processing tasks facilitating the mobility to span the measuring area in a vast geographic area. This paper presents the design of a generalized, low-cost and re-configurable, re-programmable smart sensor node using a Zigbee with a Field-Programmable Gate Array (FPGA) that embeds all processing and communication functionalities based on the IEEE 1451 family of standards. Design of the sensor nodes includes communication, processing and transducer control functionalities in a single core increasing the speedup of processing power due to inter-process communication taking place within the chip itself. Results obtained by measuring the pH value and temperature of water samples verify the performance of the proposed sensor node
Premadasa HKS, Meegama RGN. Transmission of Concealed Data in Transmission of Concealed Data in Short Messaging Service. 2013.
Niroshika UAA, Meegama RGN. Active Contour Model for the Detection of Sharp Corners in Image Boundaries. 2013.
Niroshika AA, Meegama RGN, Fernando TGI. Active contour model to extract boundaries of teeth in dental X-ray images, in Computer Science & Education (ICCSE), 2013 8th International Conference on. IEEE; 2013:396–401.
Kumara MRSP, Meegama RGN. Active contour-based segmentation and removal of optic disk from retinal images, in Advances in ICT for Emerging Regions (ICTer), 2013 International Conference on. IEEE; 2013:15–20.
Niroshika UAA, Meegama RGN. A deformable model to segment discontinuous boundaries of bone fractures in X-ray images, in Industrial and Information Systems (ICIIS), 2013 8th IEEE International Conference on. IEEE; 2013:309–314.