Nonconvex relaxation for Poisson intensity reconstruction

@article{Adhikari2015NonconvexRF,
  title={Nonconvex relaxation for Poisson intensity reconstruction},
  author={Lasith Adhikari and Roummel F. Marcia},
  journal={2015 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)},
  year={2015},
  pages={1483-1487}
}
Critical to accurate reconstruction of sparse signals from low-dimensional Poisson observations is the solution of nonlinear optimization problems that promote sparse solutions. Theoretically, non-convex ℓp-norm minimization (0 ≤ p <; 1) would lead to more accurate reconstruction than the convex ℓ1-norm relaxation commonly used in sparse signal recovery. In… CONTINUE READING