Vehicle display control for color-impaired viewers

Patent metadata

Field	Value
Publication number	US-12252014-B2
Application number	US-202217984416-A
Country	US
Kind code	B2
Filing date	Nov 10, 2022
Priority date	Nov 10, 2022
Publication date	Mar 18, 2025
Grant date	Mar 18, 2025

Abstract

A method of controlling a color display screen aboard a motor vehicle includes performing, via a host computer, a color calibration test of a user of the motor vehicle in which the user is subjected to a calibrated set of color-coded test information. The method includes receiving a color perception response of the user to the calibrated set of color-coded test information via the host computer. Additionally, the method includes mapping a reduced visual gamut of the user via the host computer using the color perception response, and then commanding adjustment of user-specific color settings of the motor vehicle using the reduced visual gamut to thereby accommodate a color perception deficiency of the user.

First claim

What is claimed is:

1. A method for controlling a color display screen in a vehicle interior, comprising:
performing, via a host computer, a color calibration test of a potential user of the vehicle interior in which the user is subjected to a calibrated set of color-coded test information, the color-coded test information including colors in a standard red, green, blue (sRGB) gamut;
receiving, via the host computer, a color perception response of the user to the calibrated set of color-coded test information;
mapping a reduced visual gamut of the user via the host computer using the color perception response of the user, including:
converting the sRGB gamut and the color perception response of the user to a user-specific long, medium, short (LMS) response;
mapping the colors in the sRGB gamut to a new color palette using the LMS response; and
converting the new color palette back to the sRGB gamut using a color space conversion process;

identifying a color gap in which the reduced color gamut is not sufficiently large to generate at least three distinct discernable colors;
filling the color gap using icons, text, and/or graphics as an alternate signage formulation;
transmitting output signals to a display controller to command (i) an adjustment of user-specific color settings of the display screen using the reduced visual gamut and (ii) display of the alternate signage formulation, and to thereby accommodate a color perception deficiency of the user.

2. The method of claim 1 , further comprising:
adjusting the user-specific color settings of the display screen in response to the output signals.

3. The method of claim 1 , wherein performing the color calibration test includes presenting the calibrated set of color-coded test information to the user via a user device in remote communication with the host computer.

4. The method of claim 3 , wherein presenting the calibrated set of color-coded test information to the user via the user device includes displaying a sequence of color-coded graphics or images on a display screen of the user device.

5. The method of claim 1 , wherein mapping the colors in the sRGB gamut to a new color palette is performed using a Daltonization algorithm.

6. The method of claim 1 , further comprising:
selectively augmenting the reduced visual gamut via the host computer using non-color-based information; and
outputting non-color-based settings as part of the output signals in conjunction with the user-specific color settings, the non-color-based settings including the non-color-based information.

7. The method of claim 6 , wherein the non-color- based information includes one or more of a size, a shape, or a font.

8. The method of claim 1 , wherein the vehicle interior includes a steering wheel having an adjustable light bar, and wherein transmitting the output signals to the display controller includes requesting an adjustment to a longer, wider, and/or pulsating response setting of the adjustable light bar for filling the color gap.

9. The method of claim 1 , wherein the vehicle interior includes an instrument panel or cluster, and wherein transmitting control signals to the display controller includes requesting an adjustment to a color setting of information displayed via the instrument panel or cluster.

10. The method of claim 1 , wherein the color display screen includes an infotainment display screen, and wherein transmitting the output signals to the display controller includes requesting an adjustment to a color setting and/or a length setting of information displayed via the infotainment display screen.

11. The method of claim 1 , wherein transmitting the output signals to the display controller includes storing user-specific color settings in a memory device of the display controller.

12. A non-transitory, computer-readable storage medium on which is recorded an instruction set executable by a processor, wherein executing the instruction set causes the processor to:
perform a color calibration test of a potential user of a vehicle interior during which the user is subjected to a calibrated set of color-coded test information, the color-coded test information including colors in a standard red, green, blue (sRGB) gamut;
receive a color perception response of the user to the calibrated set of color-coded test information;
map a reduced visual gamut of the user using the color perception response, including:
converting the sRGB gamut and the color perception response of the user to a user-specific long, medium, short (LMS) response;
mapping the colors in the sRGB gamut to a new color palette using the LMS response; and
converting the new color palette back to the sRGB gamut using a color space conversion process;

identify a color gap in which the reduced color gamut is not sufficiently large to generate at least three distinct discernable colors:
fill the color gap using icons, text, and/or graphics as an alternate signage formulation;
command (i) an adjustment of user-specific color settings of one or more color display screens within the vehicle interior using the reduced visual gamut, and (ii) a display of the alternate signage formulation, to thereby accommodate a color perception deficiency of the user.

13. The non-transitory, computer-readable storage medium of claim 12 , wherein executing the instruction set causes the processor to perform the color calibration test by presenting the calibrated set of color-coded test information to the user via a user device in remote communication with the processor.

14. The non-transitory, computer-readable storage medium of claim 13 , wherein executing the instruction set causes the processor to present the calibrated set of color-coded test information to the user via the user device by displaying a sequence of color-coded symbols or graphics via the user device.

15. The non-transitory, computer-readable storage medium of claim 14 , wherein the sequence of color-coded symbols or graphics includes standard red, green, blue (sRGB) symbols or graphics.

16. The non-transitory, computer-readable storage medium of claim 12 , wherein executing the instruction set causes the processor to map the colors in the sRGB gamut to a new color palette using a Daltonization algorithm.

17. The non-transitory, computer-readable storage medium of claim 12 , wherein executing the instruction set causes the processor to:
selectively augment the reduced visual gamut using non-color-based information; and
output non-color-based settings to the display controller in conjunction with the user-specific color settings, wherein the non-color-based information includes one or more of a size, shape, font, intensity, or texture, the non-color-based settings including the non-color-based information.

18. A method of controlling a color display screen in a vehicle interior, comprising:
performing, via a host computer, a color calibration test of a potential user of the vehicle interior in which the user is subjected to a calibrated set of color-coded test information, the color-coded test information including colors in a standard red, green, blue (sRGB) gamut, including presenting the calibrated set of color-coded test information to the user via a display screen of the vehicle interior or a user device in remote communication with the host computer, the color-coded test information including standard red, green, blue (sRGB) symbols or graphics;
receiving, via the host computer, a color perception response of the user to the calibrated set of color-coded test information;
mapping a re

Assignees

• Gm Global Tech Operations Llc

Inventors

• Shmueli Friedland Yael
• Degani Asaf
• Levi Dan
• Philipp Tzvi
• Kishon Eran

Classifications

• B60K35/90

  Calibration of instruments, e.g. setting initial or reference parameters; Testing of instruments, e.g. detecting malfunction · CPC title

• B60K35/81

  for controlling displays · CPC title

• B60K35/65

  Instruments specially adapted for specific vehicle types or users, e.g. for left- or right-hand drive · CPC title

• B60K35/22 Primary

  Display screens · CPC title

• B60K2360/731

  Instruments adaptations for specific vehicle types or users by comprising user programmable systems · CPC title