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Scalable medical data compression and transmission using wavelet transform for telemedicine applications

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3 Author(s)
Wen-Jyi Hwang ; Dept. of Electr. Eng., Chung Yuan Christian Univ., Chungli, Taiwan ; Ching-Fung Chine ; Kuo-Jung Li

In this paper, a novel medical data compression algorithm, termed layered set partitioning in hierarchical trees (LSPIHT) algorithm, is presented for telemedicine applications. In the LSPIHT, the encoded bit streams are divided into a number of layers for transmission and reconstruction. Starting from the base layer, by accumulating bit streams up to different enhancement layers, we can reconstruct medical data with various signal-to-noise ratios (SNRs) and/or resolutions. Receivers with distinct specifications can then share the same source encoder to reduce the complexity of telecommunication networks for telemedicine applications. Numerical results show that, besides having low network complexity, the LSPIHT attains better rate-distortion performance as compared with other algorithms for encoding medical data.

Published in:

Information Technology in Biomedicine, IEEE Transactions on  (Volume:7 ,  Issue: 1 )