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A Textural Image Analysis Study Of Mars-Analog Sediment: Comparisons Of 2d And 3d Textural Analysis Methods, Image Resolution, And The Effects Of Shadows, Mary Agnes Eibl
A Textural Image Analysis Study Of Mars-Analog Sediment: Comparisons Of 2d And 3d Textural Analysis Methods, Image Resolution, And The Effects Of Shadows, Mary Agnes Eibl
Masters Theses
Sediments from Mars-analog, basaltic, aeolian (Moses Lake dunes, WA) and fluvial (Death Valley region, CA) environments were analyzed for textural properties (grain size, roundness, sphericity) to understand how well image-based analyses compare with actual sediment characteristics. Three interrelated studies determined: (1) how well high-resolution, two-dimensional (2D) image analysis compares with three-dimensional (3D) sediment textures, (2) the extent to which decreasing image resolution affects textural analyses by comparison with high-resolution images, and (3) the extent to which shadows at different incident solar angles has on textural measurements. In both aeolian and fluvial environments, 2D grain-size distributions and statistics closely match 3D …