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arXiv 1806.09882cs.CV
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基于耦合字典学习的多模态图像处理

Multi-modal Image Processing based on Coupled Dictionary Learning

University College London(伦敦大学学院)

Pingfan Song, Miguel R. D. Rodrigues

摘要:

在现实世界的情况下,许多数据处理问题往往涉及与不同的成像模态相关联的异构图像。由于这些多模态图像源于相同的现象,因此假设它们具有共同的属性或特征是现实的。在本文中,我们提出了一个多模态图像处理框架的基础上耦合字典学习捕捉不同的图像模态之间的相似性和差异。特别是,我们的框架可以在学习的稀疏变换域而不是原始像素域中捕获不同图像模态(例如边缘,角点和其他基本图元)的有利结构相似性,这可以用于改善许多图像处理任务,例如去噪,修复或超分辨率。实际实验表明,采用我们的框架,将多模态信息带来了显着的好处。

英文摘要:

In real-world scenarios, many data processing problems often involve heterogeneous images associated with different imaging modalities. Since these multimodal images originate from the same phenomenon, it is realistic to assume that they share common attributes or characteristics. In this paper, we propose a multi-modal image processing framework based on coupled dictionary learning to capture similarities and disparities between different image modalities. In particular, our framework can capture favorable structure similarities across different image modalities such as edges, corners, and other elementary primitives in a learned sparse transform domain, instead of the original pixel domain, that can be used to improve a number of image processing tasks such as denoising, inpainting, or super-resolution. Practical experiments demonstrate that incorporating multimodal information using our framework brings notable benefits.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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