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Method of extracting gps traces to display driving trajectories through an area over one or more junctions
Method of extracting gps traces to display driving trajectories through an area over one or more junctions
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机译:提取gps轨迹以显示通过一个或多个路口上方的区域的行驶轨迹的方法
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摘要
A method of determining trajectories (1810-1813) through at least one junction of a transportation network for display on a visual representation of a digital map, the digital map comprising data that is a digital representation of the transportation network. The method comprises obtaining positional information relating to the movement of a plurality of mobile devices with respect to time on the transportation network through an area (1801) comprising the at least one junction, the border of the area being divided into a plurality of segments. The positional information is used to create an entry histogram (1802) by determining a count of positional information that enters the area at each segment of the border and an exit histogram (1804) by determining a count of positional information that exits the area at each segment of the border; the histograms subsequently being used to define one or more entry (1806) and exits (1808) gates into and out of the area (1801). A trajectory through the area is assigned to pairs of entry and exit gates using the positional information.
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