Remote Sensing

Although a strict delineation would put quite a lot of our measurements of the earth within the “remotely sensed” (as opposed to in-situ), many of the techniques of used across remote sensing are natural extensions or applications of raster math to satellite imagery, which is what this section of reference materials contains.

• Band Index (NDVI, tasseled cap, wetness index)
• (S and T PCA)
• Image Classification (Supervised/unsupervised classification)” ([[SG.qmd]] Segmentation (Segment mean shift, object-based image analysis) [[classification.qmd]] #####)
• Image Streaching “Arranges the display of an image by adjusting brightness, contrast, and gamma properties.”
• Composite Bands (Composite bands)
• Pan-Sharpening
• Atmospheric Correction (Dark object subtraction, radiative transfer models, atmosphere correction)
• Photogrammarty
• Mensuration: “Measures the geometry of two and three-dimensional features in an image. (Angles, height, perimeter, volume)”
• RADAR (Synthetic aperture radar)