Image display system

• US 10,576,823 B2
• Filed: 03/24/2017
• Issued: 03/03/2020
• Est. Priority Date: 05/30/2016
• Status: Active Grant

• Current Assignee: Aisin Seiki Co., Ltd. (Aisin Corp.)
• Original Assignee: Aisin Seiki Co., Ltd. (Aisin Corp.)
• Inventors: Yamashita, Norichika
• Primary Examiner(s): Mikeska, Neil R
• Application Number:
  US16/302,849
• Publication Number:
  US 20190299782A1
• Time in Patent Office: 1,075 Days
• CPC Class Codes: B60K 2360/29 Holographic features
• CPC Class Codes: B60K 35/00 Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
• CPC Class Codes: B60R 1/00 Optical viewing arrangements; Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles
• CPC Class Codes: B60R 1/26 to the rear of the vehicle
• CPC Class Codes: B60R 1/28 with an adjustable field of view
• CPC Class Codes: B60R 2300/20 characterised by the type of display used
• CPC Class Codes: B60R 2300/30 characterised by the type of image processing
• CPC Class Codes: B60R 2300/302 combining image information with GPS information or vehicle data, e.g. vehicle speed, gyro, steering angle data
• CPC Class Codes: B60R 2300/307 virtually distinguishing relevant parts of a scene from the background of the scene
• CPC Class Codes: B60R 2300/605 the adjustment being automatic
• CPC Class Codes: B60R 2300/8046 for replacing a rear-view mirror system
• CPC Class Codes: B60R 2300/806 for aiding parking
• CPC Class Codes: G03B 15/00 Special procedures for taking photographs; Apparatus therefor
• CPC Class Codes: H04N 7/18 Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
• CPC Class Codes: H04N 7/183 for receiving images from a single remote source

Abstract

An image display system includes an image capturing unit that is to be mounted on a vehicle, and is configured to capture an image of surroundings of the vehicle, a display unit configured to display a captured image captured by the image capturing unit, an image-capturing range modification unit configured to modify an image-capturing range of the image capturing unit when the vehicle is stopped, a comparison unit configured to compare an image captured before the image-capturing range is modified by the image-capturing range modification unit with an image captured after the image-capturing range is modified by the image-capturing range modification unit, and calculate a difference value therebetween, and a determination unit configured to determine whether or not there is an abnormality in the image capturing unit based on the difference value.

Claims

1. An image display system comprising:

an image capturing unit that is to be mounted on a vehicle, and is configured to capture an image of surroundings of the vehicle;

a display unit configured to display a captured image captured by the image capturing unit;

an image-capturing range modification unit configured to modify an image-capturing range of the image capturing unit when the vehicle is stopped;

a comparison unit configured to compare an image captured before the image-capturing range is modified by the image-capturing range modification unit with an image captured after the image-capturing range is modified by the image-capturing range modification unit, and calculate a difference value therebetween; and

a determination unit configured to determine whether or not there is an abnormality in the image capturing unit based on the difference value.

2. The image display system according to claim 1, wherein

the determination unit determines that there is an abnormality in the image capturing unit if the difference value is smaller than a predetermined threshold.

3. The image display system according to claim 1, wherein

the image-capturing range modification unit modifies the image-capturing range by changing the height of the vehicle.

4. The image display system according to claim 1, wherein

the image-capturing range modification unit modifies the image-capturing range by changing an angle of elevation of the image capturing unit relative to an image-capturing target.

5. The image display system according to claim 1, further comprising

a stationary object detection unit configured to detect a stationary object contained in the captured image and a position of the stationary object in the captured image,

wherein the comparison unit calculates the difference value based on the position of the stationary object.

6. The image display system according to claim 1, further comprising

a vehicle illumination unit configured to illuminate the image-capturing range,

wherein a luminance of the vehicle illumination unit is modified before and after the image-capturing range is modified by the image-capturing range modification unit.