| Efficient and adaptive sparse time-frequency representations through superposition frames. | |
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MedLine Citation:
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PMID: 20330744 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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Sparsity in signal representation requires two aspects: a large dictionary of potential basis functions that can be adapted to a variety of waveforms and an efficient means of selecting these functions and reconstructing the corresponding signal representation. This talk introduces a family of time-frequency systems termed superposition frames that enable adaptivity and also, in contrast to many adaptive analysis systems, admit the property of fast overlap-add reconstruction. Several properties of this family are proved, and specific examples of adaptation criteria in the context of sparse audio processing are discussed. |
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Authors:
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Daniel Rudoy; Prabahan Basu; Patrick J Wolfe |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: The Journal of the Acoustical Society of America Volume: 127 ISSN: 1520-8524 ISO Abbreviation: J. Acoust. Soc. Am. Publication Date: 2010 Mar |
Date Detail:
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Created Date: 2010-03-24 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 7503051 Medline TA: J Acoust Soc Am Country: United States |
Other Details:
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Languages: eng Pagination: 1907 Citation Subset: IM |
Affiliation:
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Statistics & Information Sci. Lab., Harvard Univ., Oxford St., Cambridge, MA 02138, wolfe@stat.harvard.edu. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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