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Motion-blur kernel size estimation via learning a convolutional neural network
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DOI：10.1016/j.patrec.2017.08.017.png)
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摘要
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Deblurring is to restore a latent clear image as well as to estimate an underlying blur kernel from a single blurry image. Motion blur kernel size is a significant input parameter of existing deblurring algorithms. Setting the size manually, which is a tedious trial-and-error process, can hardly obtain a satisfactory result directly and effectively. In this paper, we formulate the kernel size estimation as a regression problem and construct a convolutional neural network (CNN) to resolve it. After training the CNN by a large number of simulated blurry images with labels, which are produced by a relative way, we can estimate the kernel sizes of a given blurry image without size limitation. Both quantitative and qualitative results of experiments show that our method can not only estimate the motion blur kernel size accurately but also help to yield better pictures with estimated kernel sizes as input parameters. (C) 2017 Elsevier B.V. All rights reserved.
Keyword:
Image deblurring
Kernel size estimation
Convolutional neural network
Deep learning
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3.3
论文数:
8.0K
被引数:
1.6W
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