2009 | OriginalPaper | Buchkapitel
A New Approach to Sparse Image Representation Using MMV and K-SVD
verfasst von : Jie Yang, Abdesselam Bouzerdoum, Son Lam Phung
Erschienen in: Advanced Concepts for Intelligent Vision Systems
Verlag: Springer Berlin Heidelberg
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This paper addresses the problem of image representation based on a sparse decomposition over a learned dictionary. We propose an improved matching pursuit algorithm for Multiple Measurement Vectors (MMV) and an adaptive algorithm for dictionary learning based on multi-Singular Value Decomposition (SVD), and combine them for image representation. Compared with the traditional K-SVD and
orthogonal matching pursuit
MMV (OMPMMV) methods, the proposed method runs faster and achieves a higher overall reconstruction accuracy.