144 search results - page 11 / 29 » Sparsity in time-frequency representations |
ICPR
2008
IEEE
15 years 4 months ago
2008
IEEE
A sparse representation based method is proposed for text detection from scene images. We start with edge information extracted using Canny operator and then group these edge poin...
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NIPS
2008
14 years 11 months ago
2008
We propose a novel application of Formal Concept Analysis (FCA) to neural decoding: instead of just trying to figure out which stimulus was presented, we demonstrate how to explor...
ICASSP
2011
IEEE
14 years 1 months ago
2011
IEEE
The recent upsurge of research toward compressive sampling and parsimonious signal representations hinges on signals being sparse, either naturally, or, after projecting them on a...
ICASSP
2008
IEEE
15 years 4 months ago
2008
IEEE
In this paper we introduce a new watermarking model combining a joint time frequency (TF) representation using the molecular matching pursuit (MMP) algorithm and a psychoacoustic ...
TSP
2008
14 years 9 months ago
2008
Abstract-- We consider approximations of signals by the elements of a frame in a complex vector space of dimension N and formulate both the noiseless and the noisy sparse represent...