Study on a Measure Technology Concerned in Airplane Deviation of Airplane from Runway based on Target Identification

In order to effectively avoid the accident which the airplane deviates from the runway,target identification technology is used.The technology can extract the runway middle sign line and the contour line which can express the direction of airplane running,and further measure the directions of the sign line and the airplane run,calculate the angle between them.Thus the technology can quantificationally measure the circumstances which the airplane deviates from the runway.The experiment shows that the speed of measure is swift and the result of measure is accurate.The technology can effectively supervise the airplane running in the runway.It is an useful technology.