560 search results - page 87 / 112 » Level-set methods for convex optimization |
121
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ICASSP
2011
IEEE
14 years 5 months ago
2011
IEEE
In this paper, a new adaptive beamforming algorithm with joint robustness against covariance matrix uncertainty as well as steering vector mismatch is proposed. First, the theoret...
ICASSP
2011
IEEE
14 years 5 months ago
2011
IEEE
Frame (upper and lower) bound ratio is a key factor of numerical stability of frame systems. While tight frames, of which the minimal ratio 1 is achieved, are much preferred in ma...
111
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DAM
2007
15 years 1 months ago
2007
Given A := {a1, . . . , am} ⊂ Rd whose affine hull is Rd, we study the problems of computing an approximate rounding of the convex hull of A and an approximation to the minimum ...
114
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JMIV
2007
15 years 1 months ago
2007
Recently, a powerful two-phase method for restoring images corrupted with high level impulse noise has been developed. The main drawback of the method is the computational efficie...
115
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ICCV
2001
IEEE
16 years 3 months ago
2001
IEEE
We cast the problem of multiframe stereo reconstruction of a smooth shape as the global region segmentation of a collection of images of the scene. Dually, the problem of segmenti...