March 97 - Geo Info Recent advancements in digital aerial photography is making it the inexpensive choice.
Fast turnaround is the hallmark of digital aerial photography.
It can provide emergency response agencies with images of disaster areas within 24 hours of a flight. Digital color infrared imagery can supply forestry services with early information on tree diseases, and alert growers to anomalies before crop damage is widespread. The system records the data on a hard disk, along with GPS coordinates and ancillary mission and system configuration information. Post-mission processing software provides options for image enhancement, georeferencing, automosaicking, GIS interfacing and analysis. The footprint, or capture area, of the image produced by a digital camera is determined by the number of pixels in the array, the focal length of the camera and the altitude of the aircraft.