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Proceedings Paper

Inexpensive Gabor decompositions
Author(s): Sigang Qiu; Hans Georg Feichtinger; Thomas Strohmer
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Paper Abstract

This is a paper on the discrete Gabor transform. We discuss the calculation of dual and tight Gabor atoms, for Gabor atoms which satisfy certain support restrictions related to the relevant time- and frequency lattice constants. These conditions imply that the Gabor frame operator is just a pointwise multiplication operator and therefore computing the inverse or the square root of the inverse frame operator are computationally inexpensive.

Paper Details

Date Published: 11 October 1994
PDF: 9 pages
Proc. SPIE 2303, Wavelet Applications in Signal and Image Processing II, (11 October 1994); doi: 10.1117/12.188778
Show Author Affiliations
Sigang Qiu, Univ. of Vienna (Austria)
Hans Georg Feichtinger, Univ. of Vienna (Austria)
Thomas Strohmer, Univ. of Vienna (Austria)


Published in SPIE Proceedings Vol. 2303:
Wavelet Applications in Signal and Image Processing II
Andrew F. Laine; Michael A. Unser, Editor(s)

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