arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1902.08347cs.CV
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用于高光谱分解评价的实验室创建的具有真值的数据集

A laboratory-created dataset with ground-truth for hyperspectral unmixing evaluation

Northwestern Polytechnical University(西北工业大学);University of Calgary(卡尔加里大学)

Min Zhao, Jie Chen, Zhe He

摘要:

光谱解混是高光谱数据处理中的一个重要而又具有挑战性的问题。这一主题已被广泛研究,并在文献中提出了各种解混算法。然而,缺乏公开可用的数据集与真值,使得它很难评估和比较的性能,在一个定量和客观的方式去混合算法。大多数现有的工作依赖于使用数值合成数据和直观的检查结果的实际数据。为了缓解这种困境,在这项研究中,我们在我们的实验室设计了几个实验场景,包括印刷棋盘,混合石英砂,和反射与垂直板。然后通过使用我们实验室的高光谱相机对这些场景进行成像来创建数据集,提供36个混合物,超过130,000个像素,256个波长波段,从400 nm到1000 nm。实验设置受到严格控制,以便知道纯材料的光谱特征和材料成分。据我们所知,该数据集是第一个公开可用的数据集,以系统的方式创建的真值光谱解混。一些典型的线性和非线性解混算法也进行了测试与此数据集,并导致有意义的结果。

英文摘要:

Spectral unmixing is an important and challenging problem in hyperspectral data processing. This topic has been extensively studied and a variety of unmixing algorithms have been proposed in the literature. However, the lack of publicly available dataset with ground-truth makes it difficult to evaluate and compare the performance of unmixing algorithms in a quantitative and objective manner. Most of the existing works rely on the use of numerical synthetic data and an intuitive inspection of the results of real data. To alleviate this dilemma, in this study, we design several experimental scenes in our laboratory, including printed checkerboards, mixed quartz sands, and reflection with a vertical board. A dataset is then created by imaging these scenes with the hyperspectral camera in our laboratory, providing 36 mixtures with more than 130, 000 pixels with 256 wavelength bands ranging from 400nm to 1000nm. The experimental settings are strictly controlled so that pure material spectral signatures and material compositions are known. To the best of our knowledge, this dataset is the first publicly available dataset created in a systematic manner with ground-truth for spectral unmixing. Some typical linear and nonlinear unmixing algorithms are also tested with this dataset and lead to meaningful results.

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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