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arXiv 1804.05902cs.CV
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用于单帧图像超分辨率的稠密连接高阶残差网络

Densely Connected High Order Residual Network for Single Frame Image Super Resolution

Wenhua College(文华学院)

Yiwen Huang, Ming Qin

摘要:

深度卷积神经网络(DCNN)近年来被广泛用于超分辨率的研究,但以往的研究主要集中在其模型中尽可能多的层堆叠,本文提出了一种新的视角来研究图像复原问题,即我们可以构建反映图像复原过程物理意义的神经网络模型,将图像复原的先验知识直接嵌入到我们的神经网络模型的结构中,我们采用对称非线性颜色空间S形变换来代替传统的变换,例如sRGB、Rec.709,它们是不对称的非线性颜色空间,我们还提出了一种“重用加补丁”的方法来处理不同缩放因子的超分辨率,我们提出的方法和模型显示出比以前的工作更好的性能,即使我们的模型只是粗略地训练,仍然可能是欠拟合的训练集。

英文摘要:

Deep convolutional neural networks (DCNN) have been widely adopted for research on super resolution recently, however previous work focused mainly on stacking as many layers as possible in their model, in this paper, we present a new perspective regarding to image restoration problems that we can construct the neural network model reflecting the physical significance of the image restoration process, that is, embedding the a priori knowledge of image restoration directly into the structure of our neural network model, we employed a symmetric non-linear colorspace, the sigmoidal transfer, to replace traditional transfers such as, sRGB, Rec.709, which are asymmetric non-linear colorspaces, we also propose a "reuse plus patch" method to deal with super resolution of different scaling factors, our proposed methods and model show generally superior performance over previous work even though our model was only roughly trained and could still be underfitting the training set.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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