SYSTEM AND METHOD FOR SWATH OVERLAP DETECTION

摘要

System and method for rapidly determining the geographic areas where spatial overlap of arbitrarily oriented (i.e. not just parallel) swath sensor data meets a pre-selected specified percentage of swath width. The unique elements of the present teachings are: (1) a system and method for defining overlap polygons using individual ping edges; (2) a system and method for computing percent overlap using the edge points and the knowledge of which source polygon contributed the edge point; and (3) the use of a non-degenerate point to line distance computation. The system and method can be used to reduce the analysis time of swath sensor data.