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Article | REF: TE5215 V1

Wavelets and applications

Authors: Béatrice PESQUET-POPESCU, Jean-Christophe PESQUET

Publication date: August 10, 2001, Review date: November 1, 2015

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2. Wavelet bases

2.1 Multi-resolution analysis

When a cameraman "zooms in", he starts from a global view of things, which we'll call a rough approximation, to focus on an area of interest, bringing out more detail than in the first image. Let's see how to formalize this type of multi-resolution approximation [55] , [50] , [49] , [51] , by placing ourselves in the L 2 space

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