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ed by satellite that “scans” the earth rather than using a camera to photograph it. ? 4 spectral bands: visible RED, GREEN, and BLUE plus NEAR INFRARED ? 4meter ground pixel resolution. 遙感土地利用分類 – 不透水層識別 高分辨率多光譜衛(wèi)星圖像 Satellite Imagery vs. Aerial Photography 2022 IKONOS Imagery False natural color posite, bands 321 (RGB) 1987 Digital Orthophoto True natural color Step 1 IKONOS Infrared false color posite, bands 421 多波段圖像合成 Step 2 Impervious cover layer generated using image classification processing techniques (PCA). Impervious cover in red, natu