Generative image deblurring based on multi-scaled residual adversary network driven by composed prior-posterior loss

摘要

Conditional Generative Adversarial Networks (CGANs) have been introduced to generate realistic images from extremely degraded inputs. However, these generative models without prior knowledge of spatial distributions has limited performance to deal with various complex scenes. In this paper, we proposed a image deblurring network based on CGANs to generate ideal images without any blurring assumption. To overcome adversarial insufficiency, an extended classifier with different attribute domains is formulated to replace the original discriminator of CGANs. Inspired by residual learning, a set of skip-connections are cohered to transfer multi-scaled spatial features to the following high-level operations. Furthermore, this adversary architecture is driven by a composite loss that integrates histogram of gradients (HoG) and geodesic distance. In experiments, an uniformed adversarial iteration is circularly applied to improve image degenerations. Extensive results show that the proposed deblurring approach significantly outper-forms state-of-the-art methods on both qualitative and quantitative evaluations. (C) 2019 Elsevier Inc. All rights reserved.