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De-noising a time series, that is a sequence of observations of a variable measured at equidistant points in time, or an image, that is a rectangular array of pixels, is a common task nowadays. The objective is to extract a varying level (a ‘signal’) representing the path followed by the time series or the true image which is overlaid by irrelevant noise.

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  • 工具书词条

  • 发表日期：

    2025年

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  • Roland Fried,
  • Ann Cathrice George

摘要

De-noising a time series, that is a sequence of observations of a variable measured at equidistant points in time, or an image, that is a rectangular array of pixels, is a common task nowadays. The objective is to extract a varying level (a ‘signal’) representing the path followed by the time series or the true image which is overlaid by irrelevant noise.