Large-Scale Optimization Techniques for Nonnegative Image Restorations

نویسندگان

  • Marielba Rojas
  • Trond Steihaug
چکیده

We describe an optimization method for large-scale nonnegative regularization. The method is an interiorpoint iteration that requires the solution of a large-scale and possibly ill-conditioned parameterized trust-region subproblem at each step. The method relies on recently developed techniques for the large-scale trust-region subproblem. We present preliminary numerical results on image restoration problems.

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تاریخ انتشار 2007