부산대학교 도서관

A joint time–frequency localized three-band biorthogonal wavelet fi lter bank to compress Electrocardiogram signals is proposedin this work. Further, the use of adaptive thresholding and modifi ed run-length encoding resulted in maximum datavolume reduction while guaranteeing reconstructing quality. Using signal-to-noise ratio, compression ratio (C R ), maximumabsolute error (E MA ), quality score (Q s ), root mean square error, compression time (C T ) and percentage root mean squarediff erence the validity of the proposed approach is studied. The experimental results deduced that the performance of theproposed approach is better when compared to the two-band wavelet fi lter bank. The proposed compression method enablesloss-less data transmission of medical signals to remote locations for therapeutic usage.