Rearview device simulation

Patent metadata

Field	Value
Publication number	US-12337761-B2
Application number	US-202117511161-A
Country	US
Kind code	B2
Filing date	Oct 26, 2021
Priority date	Apr 19, 2010
Publication date	Jun 24, 2025
Grant date	Jun 24, 2025

Abstract

A method for displaying and processing an image includes capturing the image, calculating one or more of a size, a position, and a field of view of a first region of interest (ROI) of the captured image, calculating one or more of a size, a position, and a field of view of a second ROI of the captured image, calculating a blur factor for blurring the first ROI, manipulating an image gradient of the first ROI pixel by pixel using the blur factor to reduce at least one of a brightness or a contrast of one or more pixels of the ROI, manipulating the second ROI by changing a color of one or more pixel values from the second ROI, and displaying the processed image on a display. An imaging system which includes an image signal processor (ISP) is also described.

First claim

What is claimed is:

1. A method for displaying and processing an image captured by an optical system used to simulate a rear-view system of a vehicle, the method comprising:
capturing the image;
processing the image to generate a processed image, wherein processing the image comprises
calculating one or more of a size, a position, and a field of view of a first region of interest (ROI) of the captured image,
calculating one or more of a size, a position, and a field of view of a second ROI of the captured image,
calculating a blur factor for blurring the first ROI,
manipulating an image gradient of the first ROI pixel by pixel using the blur factor to reduce at least one of a brightness or a contrast of one or more pixels of the ROI, and
manipulating the second ROI by changing a color of one or more pixel values from the second ROI; and

displaying the processed image on a display.

2. The method for displaying and processing as set forth in claim 1 , wherein the display on which the processed image is displayed is at least one of an internal vehicle dashboard display, an internal vehicle A-pillar display, or an external vehicle display at a side of the vehicle.

3. The method for displaying and processing as set forth in claim 1 , wherein one or more of the size, position, or field of view of at least one of the first ROI or the second ROI is calculated based on one or more preset parameters.

4. The method for displaying and processing as set forth in claim 3 , wherein the one or more preset parameters are based on one or more regulations related to a required field of view, and at least one of the first ROI or the second ROI is calculated as any region outside the required field of view.

5. The method for displaying and processing as set forth in claim 1 , wherein at least one of the first ROI or the second ROI comprises a plurality of regions.

6. The method for displaying and processing as set forth in claim 5 , wherein each region of the plurality of regions of one or more of the first ROI or the second ROI is manipulated using one or more of a different blur factor or a different color.

7. The method for displaying and processing as set forth in claim 1 , wherein one or more of the size, position, or field of view of at least one of the first ROI or the second ROI is calculated based on a user input.

8. The method for displaying and processing as set forth in claim 1 , wherein one or more of the size, position, or field of view of at least one of the first ROI or the second ROI is calculated based on a vehicle input comprising at least one of a vehicle speed, a surrounding environment, a detected weather condition, a detected user or driver, a detected traffic condition, or a location of the display.

9. The method for displaying and processing as set forth in claim 1 , further comprising calculating a vehicle input comprising at least one of a vehicle speed, a surrounding environment, a detected weather condition, a detected user or driver, a detected traffic condition, or a location of the display.

10. The method for displaying and processing as set forth in claim 9 , wherein the calculating of the blur factor comprises calculating the blur factor using the calculated vehicle input.

11. The method for displaying and processing as set forth in claim 10 , wherein the calculated vehicle input is vehicle speed and the blur factor increases in response to an increase in the calculated vehicle speed.

12. The method for displaying and processing as set forth in claim 1 , wherein the manipulating of the image gradient of the first ROI pixel by pixel comprises reducing the brightness and the contrast of each pixel in the first ROI.

13. The method for displaying and processing as set forth in claim 1 , wherein the manipulating of the image gradient of the first ROI pixel by pixel comprises at least one of applying a filter in the first ROI, applying via a tone reproduction curve, or desaturation of color in the first ROI.

14. The method for displaying and processing as set forth in claim 1 , wherein the manipulating of the image gradient of the first ROI pixel by pixel comprises adjusting pixel contrast to achieve a less than 90 degree step function.

15. The method for displaying and processing as set forth in claim 1 , wherein the manipulating of the image gradient of the first ROI pixel by pixel comprises adopting information from a first pixel to a second pixel and adopting information from the second pixel to the first pixel to achieve a blurriness effect.

16. The method for displaying and processing as set forth in claim 1 , wherein one or more of the first ROI or a halo ROI surrounding the first ROI is manipulated using one or more of a different color, brightness, transparency, contrast, or size.

17. The method for displaying and processing as set forth in claim 16 , wherein one or more of the first ROI or the halo ROI surrounding the first ROI is manipulated to blink.

18. An imaging system for a vehicle, the imaging system comprising:
an image sensor disposed on the vehicle and configured to generate image data, the image data comprising a set of pixel values;
an image signal processor (ISP) communicably coupled to the image sensor, the ISP configured to:
calculate one or more of a size, a position, and a field of view of a first region of interest (ROI) of the captured image;
calculate one or more of a size, a position, and a field of view of a second ROI of the captured image;
calculate a blur factor for blurring the first ROI;
manipulate an image gradient of the first ROI pixel by pixel using the blur factor to reduce at least one of a brightness or a contrast of one or more pixels of the ROI; and
manipulate the second ROI by changing a color of one or more pixel values from the second ROI; and

a display device configured to display the output image received from the ISP.

19. The imaging system as set forth in claim 18 , wherein the display on which the processed image is displayed is at least one of an internal vehicle dashboard display, an internal vehicle A-pillar display, or an external vehicle display at a side of the vehicle.

20. The imaging system as set forth in claim 18 , wherein one or more of the size, position, and field of view of at least one of the first ROI or the second ROI is calculated based on one or more preset parameters.

21. The imaging system as set forth in claim 18 , wherein the one or more preset parameters are based on one or more regulations related to a required field of view, and at least one of the first ROI or the second ROI is calculated as any region outside the required field of view.

22. The imaging system as set forth in claim 18 , wherein at least one of the first ROI or the second ROI comprises a plurality of regions.

23. The imaging system as set forth in claim 22 , wherein each region of the plurality of regions of one or more of the first ROI or the second ROI is manipulated using one or more of a different blur factor or a different color.

24. The imaging system as set forth in claim 18 , wherein one or more of the size, position, or field of view of at least one of the first ROI or the second ROI is calculated based on a user input.

25. The imaging system as set forth in claim 18 , wherein one or more of the size, position, or field of view of at least one of the first ROI or the second ROI is calculated based on a vehicle input comprising at least one of a

Assignees

• Smr Patents Sarl

Inventors

• Jochmann Thomas
• Herrmann Andreas
• Schwalb Martin
• Mualla Firas
• Kauffmann Maximilian
• Steder Thorsten

Classifications

• H04N25/61

  the noise originating only from the lens unit, e.g. flare, shading, vignetting or "cos4" · CPC title

• G06T3/047

  Fisheye or wide-angle transformations · CPC title

• G06V20/56

  exterior to a vehicle by using sensors mounted on the vehicle · CPC title

• B60R2011/004

  outside the vehicle · CPC title

• B60R11/04

  Mounting of cameras operative during drive; Arrangement of controls thereof relative to the vehicle · CPC title