超分辨率图像重建的深度稀疏表示

Yan Li, Chenjin Wu, Yi Chen, Hua Shi
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引用次数: 0

摘要

图像重建是计算机视觉中的一个重要研究方向。本文提出了一种用于超分辨率图像重建的深度稀疏表示模型。首先研究了稀疏系数的分解和过完备字典的构造,然后利用K- VSD算法提取图像的稀疏特征。最后设计了深度特征迁移模型,利用深度卷积神经网络(CNN)对图像特征进行细化。实验分别进行了透视单通道、多通道和逐像素幅值重建。主观评价和客观指标均表明该方法具有良好的重建效果。
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Deep sparse representation for Super-Resolution Image Reconstruction
Image reconstruction is an important research direction in computer vision. In this paper, a deep sparse representation model is proposed for super-resolution image reconstruction. We firstly study the decomposition of sparse coefficients and the construction of over-complete dictionary, and then use the K- VSD algorithm to extract the image sparse feature. Finally the deep feature migration model is designed to refine image features with deep convolutional neural network (CNN). The experiments carry out on the perspective single-channel, multi-channel and pixel-wise amplitude reconstruction. Both subjective assessments and objective metrics demonstrate that the proposed method has a good reconstruction effect.
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