Image compression using learned dictionaries by RLS-DLA and compared with K-SVD

The recently presented recursive least squares dictionary learning algorithm (RLS-DLA) is tested in a general image compression application. Dictionaries are learned in the pixel domain and in the 9/7 wavelet domain, and then tested in a straightforward compression scheme. Results are compared with...

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Vydané v:	2011 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP) s. 1517 - 1520
Hlavní autori:	Skretting, Karl, Engan, Kjersti
Médium:	Konferenčný príspevok..
Jazyk:	English
Vydavateľské údaje:	IEEE 01.05.2011
Predmet:	Dictionaries dictionary learning Discrete cosine transforms Image coding image compression overcomplete dictionary PSNR RLS-DLA sparse approximation Training Transform coding Wavelet domain
ISBN:	9781457705380, 1457705389
ISSN:	1520-6149
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