Hyperspectral images for "Successes and challenges of factor analysis/target transformation application to visible-to-near-infrared hyperspectral data

These are the VNIR hyperspectral images used in Tarnas et al. (2021) Successes and challenges of factor analysis/target transformation application to visible-to-near-infrared hyperspectral data, Icarus, https://doi.org/10.1016/j.icarus.2021.114402

These hyperspectral images are of "Mars trays", which consist of binary mixtures of either kaolinite, calcite, nontronite, montmorillonite, and gypsum with Mars Global Simulant (MGS-1; Cannon et al. (2019): doi.org/10.1016/j.icarus.2018.08.019). In these images, there are pure endmembers of each mineral, a pure MGS-1 endmember, and mixtures with 50%, 20%, 10%, 5%, 2.5%, and 1% abundance of each mineral that is mixed with MGS-1. Each endmember and mixture is separated into individual trays. Grain sizes for the minerals mixed with MGS-1 are either 45-75 microns, or 125-250 microns with a few grains larger than 250 microns. The wavelength range with high quality data is 1.0-2.5 microns and the spatial resolution is 0.34 mm/pixel. There are corresponding RELAB measurements of each of these mixtures and endmembers. There is tape on top of the black background material, which was used to maintain consistent positioning of the trays. See Tarnas et al. (2021), Icarus, for more details.

这些是用于Tarnas等人（2021）《因子分析/目标变换在可见-近红外高光谱数据中的应用：成功与挑战》一文的可见-近红外（VNIR）高光谱图像，该文章发表于《Icarus》，DOI链接为https://doi.org/10.1016/j.icarus.2021.114402。

这些高光谱图像拍摄的是“火星托盘”，其包含高岭石、方解石、绿脱石、蒙脱石和石膏中的任意一种与火星全球模拟物（MGS-1；Cannon等人（2019）：doi.org/10.1016/j.icarus.2018.08.019）的二元混合物。

图像中包含每种矿物的纯端元、纯MGS-1端元，以及每种矿物与MGS-1混合的丰度为50%、20%、10%、5%、2.5%和1%的混合物。

与MGS-1混合的矿物粒径为45-75微米或125-250微米，其中少数颗粒大于250微米。

高质量数据的波长范围为1.0-2.5微米，空间分辨率为0.34毫米/像素。

每种混合物和端元都有对应的RELAB测量数据。

黑色背景材料上方贴有胶带，用于保持托盘位置一致。更多细节请参见Tarnas等人（2021）发表于《Icarus》的文章。