Apparatus and associated methods for use in lane-level mapping of road intersections
First Claim
Patent Images
1. An apparatus comprising a processor and memory including computer program code, the memory and computer program code configured to, with the processor, enable the apparatus at least to:
- receive probe data from a plurality of vehicles, wherein the probe data comprises at least a geographic location and a heading angle of the respective vehicle, of a plurality of probed vehicular movements through a road intersection along a plurality of different paths, with each path having a unique combination of a point of entry to and a point of exit from the road intersection, wherein the point of entry is defined where a respective vehicle crosses a predefined boundary around the road intersection when entering the road intersection, wherein the point of exit is defined where a respective vehicle crosses the boundary around the road intersection when exiting the road intersection;
generate, with respect to the road intersection, grouped probe data, wherein the grouped probe data is generated by grouping together probe data comprising vehicle trajectories which have respective common heading angles at the points of entry to and exit from the road intersection;
determine, on a per-group basis, at least one lane-level path through the road intersection;
generate a map of the road intersection using the at least one lane-level path through the road intersection to establish a geometry of the at least one lane-level path through the road intersection; and
provide, to a vehicle traveling along at least one of the at least one lane-level path, lane-level guidance and visualization of lane maneuvers through the road intersection using the generated map of the road intersection.
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Abstract
An apparatus comprising a processor and memory including computer program code, the memory and computer program code configured to, with the processor, enable the apparatus at least to:
- generate, in respect of a road intersection, grouped probe data using probe data derived from probed vehicular movements through the road intersection, wherein the grouped probe data is generated by grouping together probe data comprising vehicle trajectories which have respective common heading angles at points of entry to and exit from the road intersection; and
- provide the grouped probe data for use in lane-level mapping of the road intersection.
39 Citations
19 Claims
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1. An apparatus comprising a processor and memory including computer program code, the memory and computer program code configured to, with the processor, enable the apparatus at least to:
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receive probe data from a plurality of vehicles, wherein the probe data comprises at least a geographic location and a heading angle of the respective vehicle, of a plurality of probed vehicular movements through a road intersection along a plurality of different paths, with each path having a unique combination of a point of entry to and a point of exit from the road intersection, wherein the point of entry is defined where a respective vehicle crosses a predefined boundary around the road intersection when entering the road intersection, wherein the point of exit is defined where a respective vehicle crosses the boundary around the road intersection when exiting the road intersection; generate, with respect to the road intersection, grouped probe data, wherein the grouped probe data is generated by grouping together probe data comprising vehicle trajectories which have respective common heading angles at the points of entry to and exit from the road intersection; determine, on a per-group basis, at least one lane-level path through the road intersection; generate a map of the road intersection using the at least one lane-level path through the road intersection to establish a geometry of the at least one lane-level path through the road intersection; and provide, to a vehicle traveling along at least one of the at least one lane-level path, lane-level guidance and visualization of lane maneuvers through the road intersection using the generated map of the road intersection. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An apparatus comprising a processor and memory including computer program code, the memory and computer program code configured to, with the processor, enable the apparatus at least to:
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receive probe data from a plurality of vehicles, wherein the probe data comprises at least a geographic location and a heading angle of the respective vehicle, of a plurality of probed vehicular movements through a road intersection along a plurality of different paths, with each path having a unique combination of a point of entry to and a point of exit from the road intersection, wherein the point of entry is defined where a respective vehicle crosses a predefined boundary around the road intersection when entering the road intersection, wherein the point of exit is defined where a respective vehicle crosses the boundary around the road intersection when exiting the road intersection; use grouped probe data, with respect to a road intersection, in lane-level mapping of the road intersection, the grouped probe data comprising probe data derived from probed vehicular movements through the road intersection which have been grouped together by probe data with vehicle trajectories which have respective common heading angles at the points of entry to and exit from the road intersection; determine, on a per-group basis, at least one lane-level path through the road intersection; generate a map of the road intersection using the at least one lane-level path through the road intersection to establish a geometry of the at least one lane-level path through the road intersection; and provide, to a vehicle traveling along at least one of the at least one lane-level path, lane-level guidance and visualization of lane maneuvers through the road intersection using the generated map of the road intersection. - View Dependent Claims (14, 15, 16, 17, 18)
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19. A system comprising a first apparatus and a second apparatus, the first apparatus and second apparatus having a processor and memory including computer program code, the memory and computer program code configured to, with the processor:
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enable the first apparatus at least to; receive probe data from a plurality of vehicles, wherein the probe data comprises at least a geographic location and a heading angle of the respective vehicle, of a plurality of probed vehicular movements through a road intersection along a plurality of different paths, with each path having a unique combination of a point of entry to and a point of exit from the road intersection, wherein the point of entry is defined where a respective vehicle crosses a predefined boundary around the road intersection when entering the road intersection, wherein the point of exit is defined where a respective vehicle crosses the boundary around the road intersection when exiting the road intersection; generate, with respect to a road intersection, grouped probe data using probe data derived from probed vehicular movements through the road intersection, wherein the grouped probe data is generated by grouping together probe data comprising vehicle trajectories which have common heading angles at the respective points of entry to and exit from the road intersection;
provide the grouped probe data to the second apparatus; andenable the second apparatus at least to;
use the grouped probe data in lane-level mapping of the road intersection;determine, on a per-group basis, at least one lane-level path through the road intersection; generate a map of the road intersection using the at least one lane-level path through the road intersection to establish a geometry of the at least one lane-level path through the road intersection; and provide, to a vehicle traveling along at least one of the at least one lane-level path, lane-level guidance and visualization of lane maneuvers through the road intersection using the generated map of the road intersection.
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Specification