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Lookup NU author(s): Professor Kianoush Nazarpour
A novel adaptive source-channel coding with feedback for progressive transmission of medical images is proposed here. In the source coding part, the transmission starts from the region of interest (RoI). The parity length in the channel code varies with respect to both the proximity of the image subblock to the RoI and the channel noise, which is iteratively estimated in the receiver. The overall transmitted data can be controlled by the user (clinician). In the case of medical data transmission, it is vital to keep the distortion level under control as in most of the cases certain clinically important regions have to be transmitted without any visible error. The proposed system significantly reduces the transmission time and error. Moreover, the system is very user friendly since the selection of the RoI, its size, overall code rate, and a number of test features such as noise level can be set by the users in both ends. A MATLAB-based TCP/IP connection has been established to demonstrate the proposed interactive and adaptive progressive transmission system. The proposed system is simulated for both binary symmetric channel (BSC) and Rayleigh channel. The experimental results verify the effectiveness of the design.
Author(s): Lo JL, Sanei S, Nazarpour K
Publication type: Article
Publication status: Published
Journal: International Journal of Telemedicine and Applications
Year: 2009
Date deposited: 11/06/2010
ISSN (print): 1687-6415
ISSN (electronic): 1687-6423
Publisher: Hindawi Publishing Corp.
URL: http://dx.doi.org/10.1155/2009/519417
DOI: 10.1155/2009/519417
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