2026
conference-paper
OpenAlex
Y. Shimbo, H. A. Harindu Y. Sarathchandra, Chinthaka Premachandra
With the increase in the elderly population, wheelchairs have become essential for transportation among older adults. Although many see wheelchairs as victims in traffic accidents, electric wheelchairs are more often the cause of collisions with pedestrians due to their greater mass and …
jp
(code pays fourni par la source)
2026
conference-paper
OpenAlex
Susara S Thenuwara, Chinthaka Premachandra, Hiroharu Kawanaka
This research investigates the mathematical geometry embedded in ancient architectural and sculptural structures across different civilizations. These constructions demonstrate advanced uses of proportionality, symmetry, curvature shaping, harmonic scaling, and fractal repetition indicating intentional mathematical intelligence rather than intuitive craftsmanship. Using modern computational …
jp
(code pays fourni par la source)
2026
conference-paper
OpenAlex
W.A.D.U. Wijesinghe, Chinthaka Premachandra, Lasith Gunawardena, Hiroharu Kawanaka et autres
Hyperspectral imaging (HSI) provides rich spectral information that is well-suited for human detection in complex environments such as disaster sites, intelligent surveillance and autonomous systems. However, the high dimensionality of HSI data imposes computational challenges. This paper proposes a novel dimensionality reduction …
jp, lk
(code pays fourni par la source)
2026
conference-paper
OpenAlex
Shioji Watanabe, Chinthaka Premachandra
Autonomous wheelchairs have been deployed in airports, hospitals, and similar environments; however, their mobility is still limited because they cannot open or pass through standard doors other than automated ones. To navigate standard doors autonomously, a wheelchair must detect the door area, …
jp
(code pays fourni par la source)
2026
conference-paper
OpenAlex
Arockia Selvakumar Arockia Doss, Jeevesh Somasundaram, Chinthaka Premachandra
Autonomous drone swarms operating in mixed BV-LOS and LOS environments demand a communication architecture that delivers both low latency and high bandwidth efficiency. Current solutions, however, force an unacceptable trade-off: robust mesh protocols such as BATMAN-adv provide the needed resilience but incur …
in, jp
(code pays fourni par la source)
2026
conference-paper
OpenAlex
I.S.B. Warnasooriya, B. H. Sudantha, Chinthaka Premachandra
The evolution of powerful automated Sign Language Recognition (SLR) systems represents a key technological intervention to resolve the communication barriers faced by the worldwide deaf and hard-of-hearing community. Contemporary research methodologies can be broadly broken into two different paradigms; vision-based, which use …
lk, jp
(code pays fourni par la source)
2026
conference-paper
OpenAlex
Vishwani Geeganage, Lakmina Gamage, Haritha Weerathunga, Chinthaka Premachandra et autres
Unmanned Aerial Vehicles (UAVs) have become indispensable in search and rescue (SAR) missions by enabling rapid aerial reconnaissance in unstructured and GPS denied environments that are inaccessible to ground teams. Conventional autonomous navigation systems typically depend on heavy sensor suites such as …
lk, jp
(code pays fourni par la source)
2026
conference-paper
OpenAlex
A.M.S. Chandra, A.M.N.N. Senevirathna, Chinthaka Premachandra, H. Waruna H. Premachandra
Train–wildlife and train–obstacle collisions present a serious safety challenge for railway operations in Sri Lanka, particularly due to elephant intrusions along railway tracks. This paper proposes a vision-based railway obstacle detection and driver assistance system that provides early warnings for hazards ahead …
lk, jp
(code pays fourni par la source)