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Non-local Means (NLM) denoising for time series, applied to ECG

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Non-local Means (NLM) denoising for time series, applied to ECG

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16 May 2013 (Updated )

NLM denoising, popular in image processing, is here used for denoising time series data (ECG).

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NLM is a patch-based method which is transient-preserving. In ECG, this means that signal peaks can be preserved while other high-frequency noise is suppressed. See "Nonlocal means denoising of ECG signals", B. Tracey and E. Miller, IEEE Transactions on Biomedical Engineering, Vol 59, No 9, Sept 2012, pages 2383-2386.

MATLAB release MATLAB 7.14 (R2012a)
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Updates
08 Sep 2014

Added utility file 'lin10.m' that was missing in first submission.

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