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SwishSwisher


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Active since 2015

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Fast Convex Optimizer for for images (compressed sensing)?
I have the following cost function minimize ||x||1, subject to || A(x) - b||2 < epsilon Where A is some...

9 years ago | 0 answers | 0

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I would like to rewrite fftshift(fft2(fftshift(x)))) as F*x*F.' but how do I handle the fftshifts?
I would like to rewrite fftshift(fft2(fftshift(x)))) as F*x*F.' (where F = dftmtx(N) and N is the size of x), but how do I handl...

9 years ago | 1 answer | 0

1

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How do I solve min ||y - A(x)||2 efficiently when A(x) is function (fourier ish) and x is large?
How do I solve for min ||y - A(x)||2 efficiently when A(x) is function? A(x) is a fourier transform plus a few other little thin...

9 years ago | 2 answers | 0

2

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