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US 2017/0248431 A1Published application
Probe Based Identification and Validation of Roundabout Junctions
AssigneeHERE Global B.V.
InventorsHilko Hofmann, Prokop Jehlicka
Life of this patent
Estimating the term…
Abstract
Probe data including points with geographic locations and heading angles are identified for a geographic area. A translation is performed on the points in the probe data in a predetermined direction orthogonal to the corresponding heading. The translated points are aggregated according to a location grid. The aggregated points are analyzed from the location grid according to the heading. A potential location for a center of a roundabout road formation is determined based on the analysis.
Claims20
A method comprising:
- identifying probe data for a geographic region, the probe data including points associated with geographic locations and headings;
- shifting, by a processor, locations of the points in predetermined directions with respect to the corresponding headings to a location grid;
- performing, by the processor, an analysis of the points in the location grid according to the heading;
- and
- identifying a roundabout road formation based on the analysis.
2 more elements
A method comprising:
- detecting a heading and a geographic location of a mobile device;
- providing the heading and the geographic location to a roundabout analysis,
- wherein the geographic location is shifted in a predetermined direction with respect to the heading to a cell in a location grid,
- wherein the roundabout analysis is performed on probe data including the heading and the geographic location of the mobile device to identify a roundabout road formation;
- and
- receiving geographic data including the roundabout road formation from the roundabout analysis.
3 more elements
An apparatus comprising:
- a memory configured to store probe data for a geographic region, the probe data including points associated with geographic locations and headings;
- a controller configured to shift locations of the points in predetermined directions with respect to the corresponding headings to a location grid and perform an analysis on the points in the location grid according to the heading,
- wherein a roundabout road formation is identified from the analysis.
Dependencies are inferred from the claim text.