公开(公告)号：US20200082179A1

公开(公告)日：2020-03-12

申请号：US16682538

申请日：2019-11-13

Applicant: DENSO CORPORATION

Inventor： Maiko SUGIE ,  Yasuyuki ITO ,  Hiroyuki KITAGAWA ,  Satoru NOMURA ,  Tomoharu MURATE ,  Miyo HAMADA

IPC: G06K9/00 ,  B60R1/00 ,  G01C21/32 ,  G06T5/00

Abstract: A map points-of-change detection device includes: a camera capturing an image of an area around a vehicle; a bird's-eye-view transformation section transforming the image into a bird's-eye view image; a map storage portion storing a road map including a road surface map; a collation processing section determining whether a point of change in the road surface map exits, the point of change being a position at which a change has occurred on an actual road surface; and a collation region identification section that determines a region for collation in a width direction of the vehicle from the bird's-eye view image.

公开(公告)号：US20240200977A1

公开(公告)日：2024-06-20

申请号：US18430508

申请日：2024-02-01

Applicant: DENSO CORPORATION

Inventor： Yuko KOKUBO ,  Hiroyuki KITAGAWA

IPC: G01C21/00 ,  G01S19/07

CPC classification number: G01C21/3859 ,  G01C21/3841 ,  G01S19/071

Abstract: A map data generation device receives probe data including travel information and GNSS information from an in-vehicle device. The map data generation device includes a correlation coefficient calculation unit that calculates a correlation coefficient indicating a correlation between the travel information and the GNSS information included in probe data, a delay time calculation unit that calculates GNSS delay time based on the correlation coefficient, a delay time correction unit that performs delay time correction for the GNSS information based on the GNSS delay time, and a map data generation unit that corrects the probe data using the GNSS information that has been subjected to the delay time correction to generate map data using the corrected probe data.

公开(公告)号：US20220090929A1

公开(公告)日：2022-03-24

申请号：US17275552

申请日：2019-08-22

Applicant: MICWARE CO.,LTD ,  DENSO CORPORATION

Inventor： Kaori SHIHOYA ,  Hiroyuki KITAGAWA

IPC: G01C21/34 ,  G01C21/30 ,  G08G1/01

Abstract: An information processing device performs information processing on position coordinates of a moving body. The information processing device includes a storage and a controller. The storage stores travel history information including a series of position coordinates indicative of a travel history of the moving body. The controller performs map matching that corrects the position coordinates onto a road network of map information. The controller calculates a plurality of candidate coordinate sequences in which position coordinates as a result of the map matching are arranged, based on the travel history information stored in the storage. The controller generates position data indicative of a position where the moving body was traveling, based on the plurality of candidate coordinate sequences.