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Erschienen in:
2002 | OriginalPaper | Buchkapitel
Multiresolution Analysis and Construction of Wavelets
verfasst von : Lokenath Debnath
Erschienen in: Wavelet Transforms and Their Applications
Verlag: Birkhäuser Boston
Enthalten in: Professional Book Archive
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The concept of multiresolution is intuitively related to the study of signals or images at different levels of resolution almost like a pyramid. The resolution of a signal is a qualitative description associated with its frequency content. For a low-pass signal, the lower its frequency content (the narrower the bandwidth), the coarser is its resolution. In signal processing, a low-pass and subsampled version of a signal is usually a good coarse approximation for many real world signals. Multiresolution is especially evident in image processing and computer vision, where coarse versions of an image are often used as a first approximation in computational algorithms.