arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2007.05996cs.CVeess.IVphysics.ao-ph
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基于物理色散模型的高光谱解混微分规划

Differentiable Programming for Hyperspectral Unmixing using a Physics-based Dispersion Model

Arizona State University(亚利桑那州立大学);Northern Arizona University(北亚利桑那大学)

John Janiczek, Parth Thaker, Gautam Dasarathy, Christopher S. Edwards, Philip Christensen, Suren Jayasuriya

摘要:

高光谱解混是一项重要的遥感任务,其应用包括物质识别和分析。典型的光谱特征使许多纯物质可从其可见光-红外光谱中识别,但由于非线性和变化因素,量化它们在混合物中的存在是一项具有挑战性的任务。在本文中,光谱变化被认为是从一个基于物理的方法,并纳入端到端的光谱解混算法通过可微编程。引入色散模型来模拟真实的光谱变化,并提出了一种有效的参数拟合方法。然后,该色散模型被用作合成分析光谱分解算法内的生成模型。此外,当训练数据可用时,引入了使用卷积神经网络来预测生成模型的参数的逆绘制技术,以提高性能和速度。结果在红外和可见-近红外(VNIR)数据集上都达到了最先进的水平,并显示出未来基于物理的模型和深度学习在高光谱解混中的协同作用。

英文摘要:

Hyperspectral unmixing is an important remote sensing task with applications including material identification and analysis. Characteristic spectral features make many pure materials identifiable from their visible-to-infrared spectra, but quantifying their presence within a mixture is a challenging task due to nonlinearities and factors of variation. In this paper, spectral variation is considered from a physics-based approach and incorporated into an end-to-end spectral unmixing algorithm via differentiable programming. The dispersion model is introduced to simulate realistic spectral variation, and an efficient method to fit the parameters is presented. Then, this dispersion model is utilized as a generative model within an analysis-by-synthesis spectral unmixing algorithm. Further, a technique for inverse rendering using a convolutional neural network to predict parameters of the generative model is introduced to enhance performance and speed when training data is available. Results achieve state-of-the-art on both infrared and visible-to-near-infrared (VNIR) datasets, and show promise for the synergy between physics-based models and deep learning in hyperspectral unmixing in the future.

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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