AN AIRBORNE MULTISPECTRAL VIDEO RADIOMETER REMOTE-SENSING SYSTEM - DEVELOPMENT AND CALIBRATION

Airborne multispectral videography is becoming a popular research and monitoring tool with the advent of charge coupled device (CCD) video t echnologies. However, most existing systems are not calibrated, result ing in radiometrically inaccurate imagery caused by nonuniform irradia nce sensitivity of the CCD imaging arrays and lens vignetting. The lat ter effect results in a higher concentration of radiation in the cente r of the images. This article describes the Airborne Multispectral Vid eo/Radiometer Remote Sensing System developed at Utah State University as well as the laboratory procedure developed to calibrate the spectr al video imagery for radiance variations across the image plane.