Academic Journals Database
Disseminating quality controlled scientific knowledge

An Adaptive Source-Channel Coding with Feedback for Progressive Transmission of Medical Images

ADD TO MY LIST
 
Author(s): Jen-Lung Lo | Saeid Sanei | Kianoush Nazarpour

Journal: International Journal of Telemedicine and Applications
ISSN 1687-6415

Volume: 2009;
Date: 2009;
Original page

ABSTRACT
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.
Affiliate Program      Why do you need a reservation system?