文章基本信息

标题：Super-Resolution Image Reconstruction with Improved Sparse Representation
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作者：Muhammad Sameer Sheikh ; Qunsheng Cao
期刊名称：International Journal of Software Engineering and Its Applications
印刷版ISSN：1738-9984
出版年度：2016
卷号：10
期号：12
页码：217-226
DOI：10.14257/ijseia.2016.10.12.18
出版社：SERSC
摘要：In this paper, we present a new approach to reconstruct a high resolution (HR) image from a low resolution (LR) input image based on a two dimensional (2D) sparse method. The new method consists of three phases. Firstly, the nonlinear feature of the input LR image is divided into the linear subspace, and then LR-HR dictionaries are learned to reduce the blurred artifacts of the image. Secondly, 2D sparse representation and self- similarity are developed to strengthen and enhance the image structure. Finally, the final HR image is achieved by reconstruction of all HR patches. Simulation results demonstrated that our proposed method achieved superior results on real images, and shows various improvements in terms of PSNR and SSIM values as compared with some other competent methods.
关键词：image super-resolution; image enhancement; sparse representation; visual ; resolution