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10 items by relevance
1 Journal article

Approximately dual frames in Hilbert spaces and applications to Gabor frames

Christensen, Ole; Laugesen, Richard S.

Sampling Theory in Signal and Image Processing — 2011, Volume 9, Issue 1, pp. 77-90

Approximately dual frames are studied in the Hilbert space setting. Approximate duals are easier to construct than classical dual frames, and can be tailored to yield almost perfect reconstruction. Bounds on the deviation from perfect reconstruction are obtained for approximately dual frames

Year: 2011

Language: English

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chpla ogfbk enid mj
2 Report

Approximately dual frames in Hilbert spaces and applications to Gabor frames

Christensen, Ole; Laugesen, Richard

Year: 2008

Language: English

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kdmnb hoj gafleicp
3 Preprint article

Approximately dual frame pairs in Hilbert spaces and applications to Gabor frames

Christensen, Ole; Laugesen, Richard S.

conditions. As illustration of the results, we construct explicit approximate duals of Gabor frames generated by the Gaussian; these approximate duals yield almost perfect reconstruction. Amazingly, the method applies also to certain Gabor frames that are far from being tight.

Year: 2008

Language: Undetermined

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lnkpfid eahg bmcjo

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