Map generation device and map generation system

    公开(公告)号:US12085395B2

    公开(公告)日:2024-09-10

    申请号:US17042940

    申请日:2018-06-12

    IPC分类号: G01C21/32 G06F16/29 G09B29/00

    摘要: A map generation device is configured to determine evaluation value of each of a plurality of evaluation items that serve as indices for evaluation the reliability of the positional information of the planimetric feature. The plurality of evaluation items include any of an error amount when arrangement of composing points of the planimetric feature is approximated, a parallelism between an arrangement direction of composing points of the planimetric feature and a movement trajectory of the measuring vehicle, a distance between a position indicated by the position information of the planimetric feature and a position of the measuring vehicle when the position of the planimetric feature is measured, an absolute value of reflection intensity of a position of the planimetric feature obtained from the measurement information or a difference between a position of the planimetric feature and surrounding reflection intensity of the planimetric feature, and so on.

    Map matching method, apparatus and electronic device

    公开(公告)号:US12025447B2

    公开(公告)日:2024-07-02

    申请号:US17819394

    申请日:2022-08-12

    IPC分类号: G01C21/32 G01C21/00 G06N3/04

    摘要: A map matching method, an apparatus and an electronic device related to the technical field of artificial intelligence such as high-precision map, autonomous driving, internet of vehicles, and smart cockpit, where a specific implementation is: when matching a high-precision map with a standard-precision map, firstly acquire road network data corresponding to the high-precision map and the standard-precision map to be matched; and construct a first graph network based on the road network data corresponding to the high-precision map, and construct a second graph network based on the road network data corresponding to the standard-precision map, then determine a matching result between the high-precision map and the standard-precision map based on the first graph network and the second graph network. By the method using the graph network, the matching of the high-precision map with the standard-precision map can be accurately realized, thereby effectively improving accuracy of the matching result.

    METHOD, APPARATUS, AND COMPUTER PROGRAM PRODUCT FOR SELECTIVE PROCESSING OF SENSOR DATA

    公开(公告)号:US20240210203A1

    公开(公告)日:2024-06-27

    申请号:US18145203

    申请日:2022-12-22

    申请人: HERE GLOBAL B.V.

    IPC分类号: G01C21/00 G01C21/32

    摘要: A method is provided for selective processing of sensor data, and more particularly, to parsing sensor data from a data stream to identify sensor data relevant to specific requests, and processing the relevant data based on the type of request. Methods include: receiving a campaign management request defining requested source data metrics; receiving source data from a plurality of sources within a geographic area; determining a subset of the source data that satisfies the requested source data metrics; processing the subset of the source data satisfying the requested source data metrics to obtain observations; and updating map data of a map database based on the observations.