signal processing

Multiresolution analysis: decomposition and reconstruction

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Multiresolution analysis is a fundamental concept in signal and image processing, making it possible to examine a signal at different resolution scales. This method originated in the pioneering work of Meyer and Mallat, who laid the foundations for an effective technique to decompose a signal into elementary components and then reconstruct it with remarkable precision. … Read more

Wavelet analysis: time-frequency localization

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Wavelet analysis transforms the way complex signals are decomposed and studied by combining temporal localization and frequency analysis. Since the 1980s, this revolutionary method has become an essential pillar in many scientific and technical fields. Thanks to its unique ability to simultaneously assess the variation in time and frequency of a signal, wavelet analysis surpasses … Read more