Image display control device

Patent metadata

Field	Value
Publication number	US-10974658-B2
Application number	US-201716470846-A
Country	US
Kind code	B2
Filing date	Oct 12, 2017
Priority date	Dec 22, 2016
Publication date	Apr 13, 2021
Grant date	Apr 13, 2021

Abstract

An image display control device displays, on a monitor, images of the periphery of a vehicle that are captured by a left camera and a right camera installed in the vehicle. The device includes: a vehicle detection unit which detects another vehicle from the images captured by the left camera and the right camera; an enlargement unit which, when the other vehicle is detected by the vehicle detection unit, subjects the images captured by the left camera and the right camera to enlargement processing on the basis of a delay time the images take to be displayed on the monitor; and an output unit which outputs the images subjected to the enlargement processing by the enlargement unit to the monitor.

First claim

The invention claimed is:

1. An image display control device that displays images of surroundings of a host vehicle on a monitor, the images being captured by one or more cameras installed in the host vehicle, the image display control device configured to:
detect
an other vehicle in an image captured by a camera of the one or more cameras;
when the other vehicle approaches the host vehicle equipped with the camera, apply an enlargement processing to the image to obtain an enlarged image based on a delay time required for displaying the image captured by the camera on the monitor; and
output to the monitor the enlarged image,
the image display control device further configured to:
based on the delay time, determine a magnification rate used for the enlargement processing,
wherein to apply the enlargement processing to the image based on the delay time required for displaying the image captured by the camera on the monitor comprises to:
enlarge at least an area of the image at the magnification rate,
wherein the image display control device further configured to:
 trim the enlarged image so as to be matched with a display area of the monitor, wherein to trim the enlarged image so as to be matched with the display area of the monitor comprises to:
 cause a position of the other vehicle in the enlarged image to become equal to a position of the other vehicle in the image before being enlarged.

2. The image display control device according to claim 1 , wherein the at least the area of the image is a whole of the image.

3. The image display control device according to claim 1 , wherein the at least the area of the image is an area of a whole of the image that is smaller than the whole of the image.

4. The image display control device according to claim 1 , further configured to:
measure an inter-vehicle distance between the host vehicle equipped with the camera and the other vehicle, when the other vehicle is detected from the image; and
based on the inter-vehicle distance, calculate relative velocity of the other vehicle with respect to the host vehicle equipped with the camera,
wherein the magnification rate used for the enlargement processing is based on the inter-vehicle distance, the relative velocity, and the delay time.

5. The image display control device according to claim 4 , further configured to:
when a plurality of other vehicles are detected from the image, measure an inter-vehicle distance between the host vehicle equipped with the camera and one of other vehicles positioned closest to the host vehicle in a direction orthogonal to a traveling direction thereof.

6. The image display control device according to claim 1 , further to:
determine the delay time based on a temperature of a liquid crystal display included in the monitor.

7. An image display control device that displays images of surroundings of a host vehicle on a monitor, the images being captured by one or more cameras installed in the host vehicle, the image display control device configured to:
detect an other vehicle in an image captured by a camera of the one or more cameras;
when the other vehicle approaches the host vehicle equipped with the camera, apply an enlargement processing to the image to obtain an enlarged image based on a delay time required for displaying the image captured by the camera on the monitor; and
output to the monitor the enlarged image,
the image display control device further configured to: based on the delay time, determine a magnification rate used for the enlargement processing,
wherein to apply the enlargement processing to the image to obtain the enlarged image comprises to:
identify an area of the image including the other vehicle;
enlarge the area at the magnification rate to obtain an enlarged area; and
replace the area in the image with the enlarged area to obtain the enlarged image.

8. The image display control device according to claim 7 , wherein to apply the enlargement processing to the image to obtain the enlarged image further comprises to:
replace the area including the other vehicle in the image with the enlarged area so that a first center of the enlarged area is aligned with a second center of the area before enlargement to obtain the enlarged image.

9. The image display control device according to claim 7 , further configured to:
measure an inter-vehicle distance between the host vehicle equipped with the camera and the other vehicle, when the other vehicle is detected from the image; and
based on the inter-vehicle distance, calculate relative velocity of the other vehicle with respect to the host vehicle equipped with the camera,
wherein the magnification rate used for the enlargement processing is based on the inter-vehicle distance, the relative velocity, and the delay time.

10. The image display control device according to claim 9 , further configured to:
when a plurality of other vehicles are detected from the image, measure an inter-vehicle distance between the host vehicle equipped with the camera and one of other vehicles positioned closest to the host vehicle in a direction orthogonal to a traveling direction thereof.

11. The image display control device according to claim 7 , further to:
determine the delay time based on a temperature of a liquid crystal display included in the monitor.

12. An image display control device that displays images of surroundings of a host vehicle on a monitor, the images being captured by a camera installed in the host vehicle, the image display control device configured to:
detect an other vehicle in an image captured by the camera;
when the other vehicle approaches the host vehicle equipped with the camera, apply an enlargement processing to the image to obtain an enlarged image based on a delay time required for displaying the image captured by the camera on the monitor; and
output to the monitor the enlarged image,
the image display control device further configured to: based on the delay time, determine a magnification rate used for the enlargement processing,
wherein respective cameras, including the camera, are installed at one side and the other side of the host vehicle, and
wherein the image display control device further configured to:
when other vehicles are detected from images captured by the respective cameras at a same timing,
determine the magnification rate for each of the images captured by the respective cameras, and
apply the enlargement processing to the images based on larger magnification rate.

13. The image display control device according to claim 12 , further configured to:
measure an inter-vehicle distance between the host vehicle equipped with the camera and the other vehicle, when the other vehicle is detected from the image; and
based on the inter-vehicle distance, calculate relative velocity of the other vehicle with respect to the host vehicle equipped with the camera,
wherein the magnification rate used for the enlargement processing is based on the inter-vehicle distance, the relative velocity, and the delay time.

14. The image display control device according to claim 13 , further configured to:
when a plurality of other vehicles are detected from the image, measure an inter-vehicle distance between the host vehicle equipped with the camera and one of other vehicles positioned closest to the host vehicle in a direction orthogonal to a traveling direction thereof.

15. The image display control device according to claim 12 , further to:
determine the delay time based on a temperature of a liquid crystal display included in the monitor.

Assignees

• Calsonic Kansei Corp

Inventors

• Kondou Daisuke
• Yamaguchi Hisashi

Classifications

• H04N7/181

  for receiving images from a plurality of remote sources · CPC title

• G08G1/167

  Driving aids for lane monitoring, lane changing, e.g. blind spot detection · CPC title

• G08G1/163

  involving continuous checking · CPC title

• B60R2300/306

  using a re-scaling of images · CPC title

• B60R2011/0005

  Dashboard · CPC title