Backscatter Effects in Active Illumination Systems
The feasibility of employing artificial illumination to enhance the capability of low-light-level television sensors depends not only on the illuminator providing adequate light level at the scene, but, equally important, on obtaining good contrast transmission through the intervening atmospheric path between the scene and the receiver. It is well known that even under normal illumination conditions ambient light that is scattered into the field of view of the receiver causes a degradation in the apparent contrast of the scene as viewed at the position of the observer.
KeywordsReceiver Field Modulation Transfer Function Apparent Contrast Artificial Illumination Television Sensor
Unable to display preview. Download preview PDF.