Camera calibration device

• US 10,846,884 B2
• Filed: 09/05/2019
• Issued: 11/24/2020
• Est. Priority Date: 09/06/2018
• Status: Active Grant

• Current Assignee: Aisin Seiki Co., Ltd. (Aisin Corp.)
• Original Assignee: Aisin Seiki Co., Ltd. (Aisin Corp.)
• Inventors: Hayakawa, Kazutaka
• Primary Examiner(s): Beck, Leron
• Application Number:
  US16/561,255
• Publication Number:
  US 20200082568A1
• Time in Patent Office: 446 Days
• Field of Search: 348148
• CPC Class Codes: B60R 11/04 Mounting of cameras operative during drive; Arrangement of controls thereof relative to the vehicle
• CPC Class Codes: B60R 2011/0003 inside the vehicle
• CPC Class Codes: B60R 2011/004 outside the vehicle
• CPC Class Codes: G06T 2207/10016 Video; Image sequence
• CPC Class Codes: G06T 2207/30244 Camera pose
• CPC Class Codes: G06T 2207/30252 Vehicle exterior; Vicinity of vehicle
• CPC Class Codes: G06T 2207/30268 Vehicle interior
• CPC Class Codes: G06T 7/70 Determining position or orientation of objects or cameras camera calibration G06T7/80
• CPC Class Codes: G06T 7/80 Analysis of captured images to determine intrinsic or extrinsic camera parameters, i.e. camera calibration
• CPC Class Codes: H04N 17/002 for television cameras

Abstract

A camera calibration device includes: a storage unit configured to store an allowable range of a camera position posture including at least one of a position and an angle of an in-vehicle camera in association with a reference riding pattern that is a reference of an occupant'"'"'s riding pattern with respect to a vehicle; an acquisition unit configured to acquire the riding pattern and the camera position posture at a preset timing; and a control unit configured to execute at least one of notification of optical axis deviation of the in-vehicle camera and correction of the optical axis deviation when the acquired camera position posture is not within the allowable range associated with the reference riding pattern that matches the acquired riding pattern in the storage unit.

Claims

1. A camera calibration device comprising:

a storage unit configured to store an allowable range of a camera position posture including at least one of a position and an angle of an in-vehicle camera in association with a reference riding pattern that is a reference of an occupant'"'"'s riding pattern with respect to a vehicle;

an acquisition unit configured to acquire the riding pattern and the camera position posture at a preset timing; and

a control unit configured to execute at least one of notification of optical axis deviation of the in-vehicle camera and correction of the optical axis deviation when the acquired camera position posture is not within the allowable range associated with the reference riding pattern that matches the acquired riding pattern in the storage unit.

2. The camera calibration device according to claim 1, wherein

the acquisition unit acquires the riding pattern based on a detection result of a sensor that detects an occupant in the vehicle.

3. The camera calibration device according to claim 1, wherein

the storage unit further stores a registered riding pattern that is the riding pattern acquired at a preset number of times or more and a registered camera position posture that is the camera position posture in the registered riding pattern in association with each other, and

the control unit corrects the optical axis deviation when the acquired camera position posture does not match the registered camera position posture associated with the registered riding pattern that matches the acquired riding pattern in the storage unit.

4. A camera calibration device comprising:

a storage unit configured to store an allowable range of a camera position posture including at least one of a position and an angle of an in-vehicle camera that occurs according to arrangement of an occupant in a vehicle;

an acquisition unit configured to acquire the camera position posture at a preset timing; and

a control unit configured to execute at least one of notification of optical axis deviation of the in-vehicle camera and correction of the optical axis deviation when the acquired camera position posture is not within the allowable range stored in the storage unit.