Browsing Research Publications by Author "Udawatta, L"

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  • Auscultation based stethoscopic diagnostic device for cardiac murmur identification 
    Prasanga, DK; Abeykoon, AMHS; Prasad, SKLB; Udawatta, L [Conference-Abstract]
    In a healthy heart, there is no any abnormal blood flow takes place inside, in addition to the usual blood circulating pattern. However when the valves or tissues inside the heart are in diseased conditions, this usual ...
  • Design and development of an electronic stethoscope for cardiac murmur identification 
    Prasanga, KD; Prasad, LB; Perera, WARP; Perera, KLN; Abeykoon, AMHS; Udawatta, L [Conference-Extended-Abstract]
    Cardiac murmurs are the sounds produced by the abnormal passage of the blood flow inside the heart due to the diseased value of tissues. Identifying the type of the murmur can diagnose the cardiac pathology related to that ...
  • Detection of vehicles using a cascaded classifier in comparison to a artificial neural network 
    Fernando, S; Udawatta, L [Conference-Extended-Abstract]
    This paper describes the comparison of accuracy and performance of two machine learning approaches for visual object detection and tracking vehicles. The first is a neural network based approach. The classification was ...
  • Determination of one dimensional earth resistivity profile in multilayer soil 
    Dharmadasa, IT; Lucas, JR; Udawatta, L; Wijayapala, WDAS [Conference-Extended-Abstract]
    Main intention of Geophysical resistrvity surveying is to interpret the subsurface conditions for engineering applications. The earth exhibits a far from uniform structure and therefore the surface resistivity varies ...
  • Enhanced position sensing device for mobile robot applications using an optical sensor 
    Abeykoon, AMHS; Udawatta, L; Dunuweera, MS; Gunasekara, RT; Fonseka, M; Gunasekara, SP [Conference-Abstract]
    This paper introduces a low cost method of sensing position using a optical sensor. Main objective of this study was to overcome the shortcomings associated with the conventional contact type of position sensors using ...
  • Gait pattern analysis of an Asian elephant 
    Wijesooriya, PN; Abeykoon, AMHS; Udawatta, L; Punchihewa, A; Nanayakkara, T [Conference-Abstract]
    Elephants have to maintain stability of a body weighing 2700 kg - 4500 kg in a wide range of unstructured terrain conditions. To achieve this, the dynamic walking control strategies of an elephant should be able to ...
  • Genetic algorithm based signature training 
    Jayasekara, AGBP; Udawatta, L [Conference-Full-text]
    Signature recognition has many practical applications in criminology, document authenticity, banking sector and organizational level record keeping. A trained template of sample input signatures can be used to recognize ...
  • Image retrieval and indexing system for data mining 
    Fernando, PBC; Gunasekera, GSM; Gunasinghe, SR; Udawatta, L; De Silva, CR [Conference-Extended-Abstract]
    Given the limitations of human perceptions it would be impossible to classify the images manually. The IRIS (Image Retrieval and Indexing System for Data Mining) system that we have developed is a solution! to this problem. ...
  • Intelligent behaviors and sensor fusion for mobile robot based on fuzzy realization 
    Pallegedara, A; Jayasiri, DDAS; Udawatta, L; Dassanayaka, P [Conference-Full-text]
    This paper describes how fuzzy control can be applied to a sonar-based mobile robot. Behavior-based fuzzy control for robot behaviors was designed using sonar sensors. (10) Throughout this research work experimental ...
  • Intelligent behaviors and sensor fusion for mobile robot based on fuzzy realization 
    Udawatta, L; Jayasiri, DDAS; Pallegedara, A; Dassanayaka, P [SRC-Report]
    This paper describes how fuzzy control can be applied to a sonar-based mobile robot. Behavior-based fuzzy control for robot behaviors was designed using sonar sensors. (10) Throughout this research work experimental ...
  • Knowledge on heart patients through stethoscopic cardiac murmur identification for E-Healthcare 
    Udawatta, L; Abeykoon, AMHS; Prasanga, DK; Prasad, SKLB; Perera, WARP; Perera, KLN [Conference-Abstract]
    Cardiac murmurs are the sounds produced by the abnormal passage of the blood flow inside the heart due to the diseased valves or tissues. Identifying the type of the murmur can diagnose the cardiac pathology related to ...
  • Object detection with Artificial neural networks combined with dyadic image downscaling using Haar transform 
    Fernando, WSP; Udawatta, L [Conference-Abstract]
    This paper describes the methodology for identifying a moving object by a fast dyadic image downscaling combined with a neural network (a multi layer perceptron). Given a sequence of images here we basically try to detect ...
  • Position detecting module 
    Dunuweera, MS; Fonseka, M; Gunasekara, RT; Gunasekara, SP; ; Abeykoon, AMHS; Udawatta, L [Conference-Extended-Abstract]
    This invention relates to a method of sensing positions in application such as mobile robotic applications. The main objective of this invention is to overcome certain issues related to position detection mechanisms available ...
  • Position detecting module 
    Dunuweera, MS; Fonseka, M; Gunasekara, RT; Gunasekara, P; Harcha, AM; Abeykoon, S; Udawatta, L [SRC-Report]
    This invention relates to a method of sensing positions in application such as mobile robotic applications. The main objective of this invention is to overcome certain issues related to position detection mechanisms available ...
  • Power controller for solar panels for optimum utilization 
    Udawatta, L; Harishan, K; Heendeniya, HKCB; Jayaweera, JAGK; Sivakaran, N [Conference-Abstract]
    The paper presents about studying and experimenting on optimal configuration of standalone solar panels, and the implementation of a control module named 'SOLAR OPTIMIZER' Optimal configuration of a ...
  • Profile of the Sri Lankan eEectrical engineering industry 
    Jayasekara, B; Lucas, R; Namasivayam, S; Udawatta, L [Article-Abstract]
    The electrical and electronic industry in Sri Lanka, although relatively small in itself, is a key service industry to other industrial sectors as well. In the study presented, a sample of around 300 companies/industries ...
  • Profile of the Sri Lankan electrical engineering industry 
    Jayasekara, B; Lucas, R; Namasivayam, S; Udawatta, L [Article-Abstract]
    The electrical and electronic industry in Sri Lanka, although relatively small in itself, is a key service industry to other industrial sectors as well. In the study presented, a sample of around 300 companies/industries ...
  • Swing leg kinematics for the bipedal walking robots 
    Abeyratne, MGAP; Welihinda, SM; Udawatta, L; Karunadasa, JP [Conference-Extended-Abstract]
    In this paper we demonstrate how the Robotic Technology theories are applied to solve the real world problem in bipedal walking of robots. Since there has been an increasing interest in bipedal locomotion, the modeling of ...