论文标题

盲目的图像修复没有先验知识

Blind Image Restoration without Prior Knowledge

论文作者

Elron, Noam, Yuval, Shahar S., Rudoy, Dmitry, Levy, Noam

论文摘要

许多图像恢复技术高度依赖于训练过程中所使用的降解,并且当应用于略有不同的输入时,其性能会大大下降。盲人和通用技术试图通过生产可以适应不同条件的训练有素的模型来减轻这种情况。但是,迄今为止的盲技术需要先验了解降解过程,以及有关其参数空间的假设。在本文中,我们介绍了自称侧链(SCNC),这是一种新颖的盲人恢复方法,在该方法中不需要先验了解降解。该模块可以添加到任何现有的CNN拓扑中,并以端到端的方式与其他网络一起培训。与任务及其动力学相关的成像参数是从训练数据中的多样性中推导的。我们将解决方案应用于几个图像恢复任务,并证明SNSC编码降解参数,从而提高恢复性能。

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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