Affine Scaling Methods for Image Deblurring Problems
Raymond H. Chan, Benedetta Morini, Margherita Porcelli, Theodore E. Simos, George Psihoyios, Ch. Tsitouras · AIP conference proceedings · 2010
Blur in images can be removed by solving a series of box‐constrained linear least‐squares problems. In this paper, we compare two recent approaches for solving these problems using affine‐scaling methods. Both approaches aim at solving a nonlinear system arising from the Karush‐Kuhn‐Tucker condition. One approach is to identify the active set and update the inactive components of the iterates by using a Newton‐like method. The other is to iteratively solve the nonlinear system entry‐wise by a Quasi‐Newton method.