Browsing by Author "Tebikew Lisanu"

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    Mobile Based Telederma tology System
    (Addis Ababa University, 2011-06) Tebikew Lisanu; Admasu Fitsum (PhD)
    Skin diseases currently pose a threat on the general population in the global arena. Both in developing and developed countries, controlling the prevalence of skin problems is a current public health challenge. Teledermatology studies the use of information communication technologies to deliver dermatology care from a remote distance. This project designs and implements a secure, efficient and reliable mobile based teledermatology system for situations where the mobile phone’s internet connection is slow and intermittent. In order to achieve efficient data transmission over limited-bandwidth connections the system keeps the data transmitted over the network to a minimum. The application requests and responses were formatted as binary messages. And in situations where the connection fails in the middle of sending an image only the unsent part of the image is transmitted to the server when connection is reestablished. Thereby, achieving in efficient bandwidth usage. Security while transmitting data is achieved by using secure Hyper Text Transfer Protocol (HTTP) connections. The project addresses intermittent connectivity, by making use of the mobile device’s storage to store the data temporarily. When a connection is reestablished the data is automatically sent to the server. The system was tested for connection failures by programmatically closing the connection in the middle of data transmission at random points. An emulator was used to simulate the mobile application. The system successfully recovered from all the failures. This project demonstrated the use of mobile applications to deliver teledermatology services in situations where the network is slow and unreliable.
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    Mobile Based Telederma tology System
    (Addis Ababa University, 2011-06) Tebikew Lisanu; Admasu Fitsum (PhD)
    Skin diseases currently pose a threat on the general population in the global arena. Both in developing and developed countries, controlling the prevalence of skin problems is a current public health challenge. Teledermatology studies the use of information communication technologies to deliver dermatology care from a remote distance. This project designs and implements a secure, efficient and reliable mobile based teledermatology system for situations where the mobile phone’s internet connection is slow and intermittent. In order to achieve efficient data transmission over limited-bandwidth connections the system keeps the data transmitted over the network to a minimum. The application requests and responses were formatted as binary messages. And in situations where the connection fails in the middle of sending an image only the unsent part of the image is transmitted to the server when connection is reestablished. Thereby, achieving in efficient bandwidth usage. Security while transmitting data is achieved by using secure Hyper Text Transfer Protocol (HTTP) connections. The project addresses intermittent connectivity, by making use of the mobile device’s storage to store the data temporarily. When a connection is reestablished the data is automatically sent to the server. The system was tested for connection failures by programmatically closing the connection in the middle of data transmission at random points. An emulator was used to simulate the mobile application. The system successfully recovered from all the failures. This project demonstrated the use of mobile applications to deliver teledermatology services in situations where the network is slow and unreliable.