Detecting condensation trails forming behind aircraft involves comparing parts of camera-acquired image that should show condensation trail according to imaging geometry with image parts that cannot contain trail using image processing

摘要

The method involves inputting acquired image data into a computer for evaluation from a camera mounted at the rear of the aircraft sensitive in the visible and/or spectral region, comparing parts of an acquired image that should show a condensation trail according to the imaging geometry with image parts that cannot contain a trail using image processing to distinguish between no trail(s), transient trail(s), persistent or long-term trail(s) and/or no detection possible.