arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2009.04237eess.IV
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基于参数估计深度先验正则化的高光谱图像超分辨率

Hyperspectral Image Super-Resolution via Deep Prior Regularization with Parameter Estimation

Xiuheng Wang, Jie Chen, Qi Wei, Cédric Richard

摘要:

高光谱图像超分辨率是克服现有高光谱成像系统在空间分辨率上的硬件限制的常用手段。该方法将同一场景的低分辨率HSI图像和高分辨率常规图像进行融合,得到高分辨率HSI图像。在这项工作中,我们提出了一种方法,集成了物理模型和深度先验信息。具体而言,一种新颖的,但有效的双流融合网络的设计作为融合问题的正则化。这个融合问题被制定为一个优化问题,其解决方案可以通过求解西尔维斯特方程。此外,同时估计正则化参数以自动调整物理模型的贡献,并且在重建最终HR HSI之前学习。模拟和真实数据的实验结果表明,该方法优于其他国家的最先进的方法在定量和定性比较。

英文摘要:

Hyperspectral image (HSI) super-resolution is commonly used to overcome the hardware limitations of existing hyperspectral imaging systems on spatial resolution. It fuses a low-resolution (LR) HSI and a high-resolution (HR) conventional image of the same scene to obtain an HR HSI. In this work, we propose a method that integrates a physical model and deep prior information. Specifically, a novel, yet effective two-stream fusion network is designed to serve as a {regularizer} for the fusion problem. This fusion problem is formulated as an optimization problem whose solution can be obtained by solving a Sylvester equation. Furthermore, the regularization parameter is simultaneously estimated to automatically adjust contribution of the physical model and {the} learned prior to reconstruct the final HR HSI. Experimental results on {both simulated and real data} demonstrate the superiority of the proposed method over other state-of-the-art methods on both quantitative and qualitative comparisons.

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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