Radiometric calibration

From Wikipedia, the free encyclopedia
Jump to: navigation, search

Radiometric calibration is a very important step for getting a good remote sensing image data, especially in the fields of remote sensing and astronomy.

There are usually three main parts of the CCD output to be considered; dark current, vignetting and Quantum efficiency. After a set of precise laboratory experiments and essential parameters determination, the radiance of the observed object can be retrieved from the DN value of the camera's CCD array.