Abstract
In this paper we propose an ecient method for S4 heart sound segmentation based on the Matching Pursuit algorithm and Ga- bor Dicitonaries. An evaluation of this algorithm, through the use of dierent cardiac cycle events for S4 heart sound signals, showed a high performance, achieving a detection rate of 100% with the use of Gabor dictionary. The proposed method is practical, thus making it suitable for several applications such as signal compression and audio coding.
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