Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4605464 | Applied and Computational Harmonic Analysis | 2009 | 20 Pages |
Abstract
Grouplet orthogonal bases and tight frames are constructed with association fields that group points to take advantage of geometrical image regularities in space or time. These association fields have a multiscale geometry that can incorporate multiple junctions. A fast grouplet transform is computed with orthogonal multiscale hierarchical groupings. A grouplet transform applied to wavelet image coefficients defines an orthogonal basis or a tight frame of grouping bandlets. Applications to noise removal and image zooming are described.
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