Blind Image Restoration without Prior Knowledge

• URL: http://arxiv.org/abs/2003.01764v2
• Date: Sun, 8 Mar 2020 18:36:09 GMT
• Title: Blind Image Restoration without Prior Knowledge
• Authors: Noam Elron, Shahar S. Yuval, Dmitry Rudoy and Noam Levy
• Abstract summary: We present the Self-Normalization Side-Chain (SCNC), a novel approach to blind universal restoration in which no prior knowledge of the degradation is needed. The SCNC can be added to any existing CNN topology, and is trained along with the rest of the network in an end-to-end manner.
• Score: 0.22940141855172028
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Many image restoration techniques are highly dependent on the degradation used during training, and their performance declines significantly when applied to slightly different input. Blind and universal techniques attempt to mitigate this by producing a trained model that can adapt to varying conditions. However, blind techniques to date require prior knowledge of the degradation process, and assumptions regarding its parameter-space. In this paper we present the Self-Normalization Side-Chain (SCNC), a novel approach to blind universal restoration in which no prior knowledge of the degradation is needed. This module can be added to any existing CNN topology, and is trained along with the rest of the network in an end-to-end manner. The imaging parameters relevant to the task, as well as their dynamics, are deduced from the variety in the training data. We apply our solution to several image restoration tasks, and demonstrate that the SNSC encodes the degradation-parameters, improving restoration performance.

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