Online filtering using piecewise smoothness priors: Application to normal and abnormal electrocardiogram denoising

Abstract

In this work, a block-wise extension of Tikhonov regularization is proposed for denoising smooth signals contaminated by wide-band noise. The proposed method is derived from a constrained least squares problem in two forms: 1) a block-wise fixed-lag smoother with smooth inter-block transitions applied in matrix form, and 2) a fixed-interval smoother applied… (More)
DOI: 10.1016/j.sigpro.2016.10.019

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