Coded aperture spectroscopy with denoising through sparsity
Alex Mrozack, Daniel L. Marks, David J. Brady · Optics Express · 2012
We compare noise and classification metrics for three aperture codes in dispersive spectroscopy. In contrast with previous theory, we show that multiplex codes may be advantageous even in systems dominated by Poisson noise. Furthermore, ill-conditioned codes with a regularized estimation strategy are shown to perform competitively with well-conditioned codes.