发明申请
- 专利标题: Route Computation Based on Route-Oriented Vehicle Trajectories
- 专利标题(中): 基于路线导向车辆轨迹的路线计算
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申请号: US12712053申请日: 2010-02-24
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公开(公告)号: US20110208429A1公开(公告)日: 2011-08-25
- 发明人: Yu Zheng , Yin Lou , Chengyang Zhang , Xing Xie
- 申请人: Yu Zheng , Yin Lou , Chengyang Zhang , Xing Xie
- 申请人地址: US WA Redmond
- 专利权人: Microsoft Corporation
- 当前专利权人: Microsoft Corporation
- 当前专利权人地址: US WA Redmond
- 主分类号: G01C21/36
- IPC分类号: G01C21/36 ; G01S19/42 ; G06F17/30
摘要:
Techniques for providing a route based on route-oriented vehicle trajectories are described. This disclosure describes receiving GPS logs and extracting route-oriented vehicle trajectory content from the GPS log data to pertain to a single trip. Next, the process maps each route-oriented vehicle trajectory to a corresponding road segment to construct a landmark graph. A landmark is a road segment frequently visited by route-oriented vehicles. The process includes receiving a user query with a starting point and a destination point; searching the landmark graph for a sequence of landmarks with corresponding transition times and a least amount of travel time. Then the process identifies and connects sets of road segments between each pair of consecutive landmarks, and displays a route to a user with a nearest landmark to the starting point, other landmarks along the route, and another nearest landmark to the destination point.
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