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    Updating maps and road status
    3.
    发明授权
    Updating maps and road status 有权

    公开(公告)号：US10657804B2

    公开(公告)日：2020-05-19

    申请号：US15675188

    申请日：2017-08-11

    Applicant: HERE Global B.V.

    Inventor： Gavril Giurgiu ,  Anton Anastassov ,  Dongwook Jang ,  Joshua Thompson

    IPC: G01C21/26 ,  G01C21/00 ,  G01C21/32 ,  G08G1/01 ,  G01C21/36

    Abstract: Apparatus and methods are described for updating a geographic database based on road object probabilities. For example, an initial value set for an existence probability that a road object exists is determined. Observation data collected from sensors of vehicles are received. A total quantity of the observation data include a first quantity of vehicles that observed a presence of the road object and a second quantity of the vehicles observed an absence of the road object. A presence probability indicative of a likelihood that observation data accurately describe the road object and an absence probability indicative of a likelihood that observation data accurately describe the road object are calculated to determine an updated value for the existence probability. A geographic database is updated in response to the comparison of the updated value for the existence probability to a threshold confidence level.

    Mapping road illumination
    4.
    发明授权
    Mapping road illumination 有权

    公开(公告)号：US10132643B2

    公开(公告)日：2018-11-20

    申请号：US15848872

    申请日：2017-12-20

    Applicant: HERE Global B.V.

    Inventor： Joshua Thompson ,  Yunjie Zhao

    IPC: G01C21/36 ,  G01C21/34 ,  G01C21/32 ,  G06F17/30 ,  G06K9/00 ,  F21S41/60 ,  B60Q1/14 ,  B60W40/06

    Abstract: A method and apparatus for providing navigation services including illumination data. A request for a route is received with one or more preferences related to illumination for the route. One or more road segments that have illumination road attributes that correspond to the one or more preferences are selected. The illumination road attributes are calculated as a function of high beam frequency for the one or more road segments. The route is generated including the one or more road segments. The route is provided with the illumination road attributes.

    Determining speed information
    5.
    发明授权
    Determining speed information 有权

    公开(公告)号：US10131361B2

    公开(公告)日：2018-11-20

    申请号：US15164172

    申请日：2016-05-25

    Applicant: HERE Global B.V.

    Inventor： Dongwook Jang ,  Joshua Thompson ,  Gavril Giurgiu ,  Anton Anastassov

    IPC: B60W40/105 ,  G08G1/052 ,  G05D1/00 ,  B60W30/14 ,  G07C5/08 ,  G08G1/01 ,  G08G1/0967 ,  G07C5/00

    Abstract: A method is presented, which comprises: obtaining or holding available at least one speed profile for at least one selected link of a travel network, wherein said at least one speed profile represents a plurality of speeds for a plurality of subsequent segments of said selected link; smoothing said at least one speed profile for said at least one selected link in a first smoothing step by: determining whether said at least one speed profile represents one or more speeds that are associated with an acceleration above a predetermined acceleration threshold or a deceleration below a predetermined deceleration threshold; for each speed that is determined to be associated with an acceleration above said acceleration threshold or a deceleration below said deceleration threshold, determining a respective adapted speed for replacing said respective speed at least partially based on speeds for one or more adjacent segments of said respective segment. Further presented are inter-alia corresponding apparatuses, a corresponding system and a corresponding computer program code.

    Method, apparatus, and system for providing road curvature data
    6.
    发明授权
    Method, apparatus, and system for providing road curvature data 有权

    公开(公告)号：US11072338B2

    公开(公告)日：2021-07-27

    申请号：US16450485

    申请日：2019-06-24

    Applicant: HERE GLOBAL B.V.

    Inventor： Gavril Giurgiu ,  Joshua Thompson

    IPC: G06K9/00 ,  B60W40/072 ,  G01C21/30

    Abstract: An approach is provided for road curvature data. The approach, for example, involves segmenting a road segment or plurality of road segments into a plurality of slices. The approach also involves retrieving location trace data for the plurality of slice. The location trace data, for instance, is collected from one or more location sensors of a plurality of vehicles traversing the plurality of slices. The approach further involves computing respective curvatures for the plurality of slices based on the location trace data. The approach further involves providing the road curvature data for the road segment of plurality of road segments (e.g., comprising an intersection) based on the respective curvatures of the plurality of slices.

    Method and apparatus for measurement of parking duration from anonymized data
    7.
    发明授权
    Method and apparatus for measurement of parking duration from anonymized data 有权

    公开(公告)号：US10032368B1

    公开(公告)日：2018-07-24

    申请号：US15611483

    申请日：2017-06-01

    Applicant: HERE GLOBAL B.V.

    Inventor： Joshua Thompson ,  Xiang Liu ,  Alex Averbuch

    IPC: B60Q1/48 ,  G08G1/01 ,  G08G1/14

    Abstract: An approach is provided for measuring parking duration from anonymized data. The approach involves receiving parking data indicating anonymized park in and park out events from connected vehicles. The approach also involves performing a first filtering of the parking data to remove the park out events that occur within a time interval and before a first park in event occurring within the time interval, and to remove the park in events that occur within the time interval and after a last park out event occurring within the time interval. The approach further involves performing a second filtering of the parking data remaining after the first filtering to remove park in events or park out events so that the numbers of park in and park out events are balanced. The approach then involves calculating parking duration data from the park in and park out events remaining after the second filtering.

    Method, apparatus, and system for providing road curvature data
    9.
    发明授权
    Method, apparatus, and system for providing road curvature data 有权

    公开(公告)号：US11192558B2

    公开(公告)日：2021-12-07

    申请号：US16450465

    申请日：2019-06-24

    Applicant: HERE GLOBAL B.V.

    Inventor： Joshua Thompson

    IPC: B60W40/072 ,  G06N20/00 ,  G06K9/00 ,  G01C21/30

    Abstract: An approach is provided for generating road curvature data. The approach, for example, involves map matching location trace data to a road network, wherein the location trace data is associated with ground truth curvature values. The approach also involves dividing the road network into a plurality of bounded areas (e.g., boxes or other shapes). The approach further involves extracting one or more training features for each bounded area of the plurality of bounded areas from the location trace data map matched to said each bounded area. The approach further involves training a machine learning model based on the one or more training features and ground truth curvature values. The approach further involves providing the trained machine learning model to predict the road curvature data.

    UPDATING MAPS AND ROAD STATUS
    10.
    发明申请
    UPDATING MAPS AND ROAD STATUS 审中-公开

    公开(公告)号：US20190051153A1

    公开(公告)日：2019-02-14

    申请号：US15675188

    申请日：2017-08-11

    Applicant: HERE Global B.V.

    Inventor： Gavril Giurgiu ,  Anton Anastassov ,  Dongwook Jang ,  Joshua Thompson

    IPC: G08G1/01 ,  G01C21/36

    Abstract: Apparatus and methods are described for updating a geographic database based on road object probabilities. For example, an initial value set for an existence probability that a road object exists is determined. Observation data collected from sensors of vehicles are received. A total quantity of the observation data include a first quantity of vehicles that observed a presence of the road object and a second quantity of the vehicles observed an absence of the road object. A presence probability indicative of a likelihood that observation data accurately describe the road object and an absence probability indicative of a likelihood that observation data accurately describe the road object are calculated to determine an updated value for the existence probability. A geographic database is updated in response to the comparison of the updated value for the existence probability to a threshold confidence level.

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