公开(公告)号：US20200158850A1

公开(公告)日：2020-05-21

申请号：US16557034

申请日：2019-08-30

Applicant: DENSO CORPORATION

Inventor： Kazuma ISHIGAKI ,  Kentaro SHIOTA ,  Shinya TAGUCHI ,  Naoki NITANDA

IPC: G01S13/60 ,  G07C5/02 ,  G01P3/38

Abstract: In an apparatus for learning a scale factor used to calculate a true value of a speed of a vehicle from a detected speed that is a sensor reading from a vehicle speed sensor, a sensor reading acquirer acquires the detected speed of the vehicle from the vehicle speed sensor. A relative speed detector detects a relative speed of the vehicle to a stationary object based on a result of detection by an object detector that detects an object around the vehicle. A scale factor calculator calculates the scale factor based on the relative speed and the detected speed.

公开(公告)号：US20220082407A1

公开(公告)日：2022-03-17

申请号：US17456444

申请日：2021-11-24

Applicant: DENSO CORPORATION

Inventor： Kentarou SHIOTA ,  Naoki NITANDA ,  Kazuma ISHIGAKI ,  Shinya TAGUCHI

IPC: G01C21/00

Abstract: A map system includes a vehicle apparatus that is mounted to a vehicle. The map system includes an imaging apparatus, a server, and an integrating unit. The imaging apparatus captures an image of a surrounding area of the vehicle. The server generates a map using data that corresponds to feature points extracted from the image captured by the imaging apparatus that is transmitted from the vehicle apparatus. The integrating unit weights the pieces of data that are transmitted from a plurality of vehicle apparatuses based on bias in the pieces of data and generates a map by integrating at least a portion of the plurality of pieces of data based on the weighting.

公开(公告)号：US20200342761A1

公开(公告)日：2020-10-29

申请号：US16923357

申请日：2020-07-08

Applicant: DENSO CORPORATION

Inventor： Mamoru HOSOKAWA ,  Takashi UEFUJI ,  Hidenori AKITA ,  Kenji MIYAKE ,  Shinya TAGUCHI

IPC: G08G1/16 ,  G06K9/00

Abstract: An image captured by a camera equipped in a first vehicle during an image capture period corresponding to at least a portion of a period between a first time at which the first vehicle begins to make a lane change from a first lane to a second lane and a second time at which the first vehicle finishes making the lane change from the second lane to the first lane is acquired. The information about the image is transmitted to a second vehicle or a server.