Patent ID: 11906309
Assignee: HERE GLOBAL B.V.
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 9:
10. A non-transitory computer-readable storage medium carrying one or more sequences of one or more instructions which, when executed by one or more processors, cause an apparatus to at least perform the following steps:
segmenting, by a computer-implemented map matcher, a probe trajectory into one or more low-speed probe segments and into one or more high-speed probe segments, wherein the one or more low-speed probe segments include one or more first sub-sets of a plurality of probe points of the probe trajectory that are traveling below a speed threshold, wherein the one or more high-speed probe points include one or more second sub-sets of the plurality of probe points of the probe trajectory that are traveling above the speed threshold, and wherein the computer-implemented map matcher uses a map matching technology to match the plurality of probe points of the probe trajectory to a road network stored in digital map data of a geographic database;
splitting, by the computer-implemented map matcher, the one or more low-speed probe segments at a detected turning point;
creating, by the computer-implemented map matcher, a new probe trajectory based on the one or more high-speed probe segments and the detected turning point of each segment of the one or more low-speed segments; and
performing, by the computer-implemented map matcher, a feasibility check between two consecutive probe points of the new trajectory to detect a wrong map feature in map data against which the new trajectory is map matched,
wherein the feasibility check verifies a validity of a transition between the two consecutive probe points with respect to the road network stored in the digital map data of the geographic database.