计算机科学 ›› 2015, Vol. 42 ›› Issue (11): 104-107.doi: 10.11896/j.issn.1002-137X.2015.11.022
• 第十四届中国多值逻辑与模糊逻辑学术会议 • 上一篇 下一篇
彭羊平,宁贝佳,高新波
PENG Yang-ping, NING Bei-jia and GAO Xin-bo
摘要: 单帧图像超分辨率重建是指利用一幅低分辨率图像,通过相应的算法来获取一幅高分辨率图像的技术。提出了一种基于 非负邻域嵌入和 非局部正则化 的单帧图像超分辨率重建算法,以弥补传统邻域嵌入算法的不足。在训练阶段,首先对低分辨率图像预放大2倍,以保证在放大倍数较大时,高、低分辨率图像块之间的邻域关系也能得到较好的保持;在重建阶段,使用非负邻域嵌入来有效地解决近邻数的选取问题;最后利用图像块的非局部相似性构造非局部正则项对重建结果进行修正。实验结果表明,相对于传统算法,本方法的重建结果纹理丰富、边缘清晰。
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