A Preconditioned Alternating Minimization Framework for Nonconvex and Half Quadratic Optimization

Shengxiang Deng, Ismail Ben Ayed, Hongpeng Sun

For some typical and widely used non-convex half-quadratic regularization models and the Ambrosio-Tortorelli approximate Mumford-Shah model, based on the Kurdyka-Łojasiewicz analys…