公开(公告)号：US20220180086A1

公开(公告)日：2022-06-09

申请号：US17528582

申请日：2021-11-17

Applicant: HITACHI, LTD.

Inventor： Keiichi MITANI ,  Kazuyuki TAJIMA ,  Kazuyoshi YAMAZAKI

IPC: G06K9/00 ,  G06K9/20

Abstract: A calibration device performs a calibration between a plurality of imaging devices, each of which outputs field-of-view information which is information on a field-of-view of the imaging device itself. The field-of-view information contains a bitmap image and a range image. The calibration device includes: a state estimation part configured to detect, in a field of view of a first imaging device, an image of a second imaging device, and estimate a relative position and a relative attitude of the second imaging device with respect to the first imaging device, based on the detected image; and a transformation information calculation part configured to calculate transformation information between a coordinate system of the first imaging device and a coordinate system of the second imaging device, based on the estimated relative position and relative attitude.

公开(公告)号：US20230333661A1

公开(公告)日：2023-10-19

申请号：US18116598

申请日：2023-03-02

Applicant: Hitachi, Ltd.

Inventor： Takashi NUMATA ,  Kazuyuki TAJIMA ,  Keiichi MITANI ,  Toshiteru NAKAMURA

IPC: G06F3/01 ,  G06F3/04815 ,  G06T19/20

CPC classification number: G06F3/017 ,  G06F3/04815 ,  G06T19/20 ,  G06T2219/2016 ,  G06T2200/24

Abstract: An arithmetic apparatus displays a 3D work-target object in a 3D coordinate space on a display device, and receives a motion signal that is a signal representing a motion measured by any one of sensor units. When receiving the motion signal, the arithmetic apparatus identifies the measured motion based on the motion signal. When the identified motion is a motion regarding a spatial shift that is a shift of a viewpoint in the 3D coordinate space of a user, the arithmetic apparatus shifts the viewpoint in the 3D coordinate space of the user in accordance with the identified motion. When the identified motion is a hand motion regarding a work movement with respect to a work target, the arithmetic apparatus outputs output information including information representing the work movement in accordance with the identified motion.

公开(公告)号：US20230410455A1

公开(公告)日：2023-12-21

申请号：US18131902

申请日：2023-04-07

Applicant: HITACHI, LTD.

Inventor： Kazuyuki TAJIMA ,  Keiichi MITANI ,  Yusuke NAKAMURA

IPC: G06V10/24 ,  G06T5/50 ,  G06T7/20

CPC classification number: G06V10/24 ,  G06T5/50 ,  G06T7/20 ,  G06T2207/20221

Abstract: An object of the invention is to provide a technique of performing alignment with high accuracy between a plurality of sensors even when a visual field overlapping region at the time of installation of the sensors is small in a case of imaging a subject using the plurality of sensors. An integrated image generation apparatus according to the invention generates a first pseudo visual field image that is able to be acquired by a first sensor in a first pseudo visual field generated by moving a relative position between the subject and the first sensor, and performs the alignment between the first pseudo visual field image and a second sensor image.