The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Feb. 20, 2024

Filed:

Sep. 24, 2020
Applicant:

Here Global B.v., Eindhoven, NL;

Inventors:

Qi Mao, Arlington, TX (US);

Qin Chen, Chicago, IL (US);

Liming Wang, Chicago, IL (US);

Assignee:

HERE GLOBAL B.V., Eindhoven, NL;

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01C 21/30 (2006.01); G06F 16/29 (2019.01); G01C 21/32 (2006.01); G01C 21/34 (2006.01); G06F 18/24 (2023.01);
U.S. Cl.
CPC ...
G01C 21/30 (2013.01); G01C 21/32 (2013.01); G01C 21/3461 (2013.01); G06F 16/29 (2019.01); G06F 18/24 (2023.01);
Abstract

An approach is provided for providing a map matcher tolerant to wrong map features. The approach involves, for instance, finding a segment of a probe trajectory containing a plurality of low-speed probe points. The approach also involves forming a line between a first and a last probe point of the segment. The approach further involves calculating a distance from each probe point of the segment to the line. The approach further involves splitting the segment based on comparing the distance to a threshold at a turning point of the segment. The approach further involves creating a new probe trajectory based on a plurality of high-speed probe points in the probe trajectory and the turning point. The approach further involves estimating a heading of the turning point of the segment based on the new trajectory, and then performing a feasibility check between two consecutive probe points of the new trajectory.


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