Self-tuned deep super resolution

Zhangyang Wang,Yingzhen Yang,Zhaowen Wang,Shiyu Chang,Wei Han,Jianchao Yang,Thomas S. Huang

Published 2015 in 2015 IEEE Conference on Computer Vision and Pattern Recognition Workshops (CVPRW)

ABSTRACT

Deep learning has been successfully applied to image super resolution (SR). In this paper, we propose a deep joint super resolution (DJSR) model to exploit both external and self similarities for SR. A Stacked Denoising Convolutional Auto Encoder (SDCAE) is first pre-trained on external examples with proper data augmentations. It is then fine-tuned with multi-scale self examples from each input, where the reliability of self examples is explicitly taken into account. We also enhance the model performance by sub-model training and selection. The DJSR model is extensively evaluated and compared with state-of-the-arts, and show noticeable performance improvements both quantitatively and perceptually on a wide range of images.

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