IFOVInstrument Field of View
IFOVInstantaneous Field Of View
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Nominal instantaneous field of view (IFOV) of thermal images at 305 m agl is 20 cm, while nominal IFOV for natural color images is 1.
Particularly valuable was the knowledge base developed pertaining to IFOV characteristics and illumination effects on survey imagery.
For a given viewing distance, the IFOV covered by an individual pixel is
51 at 1 meter and a 640 x 512 FPA, the IFOV of one pixel is an area about 1.
It is important to know the IFOV relative to the size of a target object to ensure that areas outside that target are not measured.