An anonymous reader writes: Do you scoff whenever there's a grainy photograph from a surveillance camera on CSI that they 'zoom in' on and magically the picture clears up? I often deride it as 'magic'. Well, any sufficiently advanced technology I suppose. There's a new algorithm called Compressive Sensing that takes advantage of the mathematical concept of Sparsity to do just that, I hope this doesn't mean CSI is the harbinger of other things.
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