ABSTRACT
Imagery and remote sensing are the use of technology that ranges from simple lm and digital cameras, to IR (night vision) and thermal imaging, to satellite images and mapping. Looking through the keyhole, as satellite imagery is oen called, has made great advances since the days of the Cuban missile crisis when lm canisters had to be retrieved, developed, analyzed, interpreted, and distributed. Ground imagery includes photography, IR imaging and viewing (such as forward-looking IR or FLIR), thermal imaging and viewing, and radar. Satellite imagery and remote sensing include aerial photography, mapping and geological data, digital data, radar, and meteorological and climatological images and data.
