Speaker: Dr.Chao Zeng（Hong Kong Baptist University）

Title: Nonconvex optimization for image restoration

Time: Fri, Mar.22, 2019, AM:11:00-11:30

Location: Room 4131, Building No.4, Wushan Campus

Abstract:

          Many applications show that nonconvex nonsmooth regularization has advantages for restoring images with neat edges. In this talk, we will provide a mathematical explanation for this phenomenon through establishing a uniform lower bound for nonzero gradients of recovered images. Inspired by this lower bound theory, we also propose an algorithm for the nonconvex models.