Head-up display for accommodating color vision deficiencies

A head-up display for displaying graphics upon a windscreen of a vehicle, the head-up display comprising:

• a graphic projection module for generating one or more graphic images upon the windscreen of the vehicle;
• a forward-facing camera collecting image data representative of a view of a surrounding environment of the vehicle visible through the windscreen;
• and
• one or more controllers in electronic communication with the graphic projection module and the forward-facing camera, wherein the one or more controllers executes instructions to:
• monitor the image data from the forward-facing camera until determining an object of interest is visible through the windscreen based on the image data;
• in response to determining the object of interest is visible through the windscreen, determine one or more graphic images to be shown upon the windscreen to bring the object of interest to the attention of a user, wherein the one or more graphic images include two or more colors;
• compare the color and luminance information corresponding to the two or more colors of the one or more graphic images generated by the graphic projection module for a potentially confusing color combination that occurs in individuals with color vision deficiencies;
• in response to determining the potentially confusing color combination exists, map color coordinates corresponding to the two or more colors on a color space chromaticity diagram as a first color and a second color;
• calculate a correlation coefficient between the first color, the second color, and a copunctal point that is part of the color space chromaticity diagram;
• compare the correlation coefficient with a threshold value, wherein a value greater than the threshold value indicates the first color and the second color are a potentially confusing color pair;
• in response to determining the correlation coefficient is greater than the threshold value, calculate a delta E value between the first color and the second color;
• compare the delta E value with a delta E threshold;
• in response to determining the delta E value is less than the delta E threshold, adjust a level of saturation and the level of luminance of at least one of the first color and the second color to increase the delta E value to above the threshold delta E;
• and
• instruct the graphic projection module to generate the one or more graphic images with increased delta E values upon the windscreen.

A head-up display for displaying graphics upon a windscreen of a vehicle, the head-up display comprising:

• a graphic projection module for generating one or more graphic images upon the windscreen of the vehicle, wherein the one or more graphic images generated by the graphic projection module includes two or more colors;
• a forward-facing camera collecting image data representative of a view of a surrounding environment of the vehicle visible through the windscreen;
• an ambient light sensor detecting a level of ambient light present in the surrounding environment of the vehicle;
• and
• one or more controllers in electronic communication with the graphic projection module, the forward-facing camera, and the ambient light sensor, wherein the one or more controllers executes instructions to:
• monitor the image data from the forward-facing camera until determining an object of interest is visible through the windscreen based on the image data;
• in response to determining the object of interest is visible through the windscreen, determine one or more graphic images to be shown upon the windscreen to bring the object of interest to the attention of a user;
• determine the level of ambient light present in the surrounding environment of the vehicle based on an ambient light signal received from the ambient light sensor;
• adjust a saturation level of one or more colors of the one or more graphic images generated by the graphic projection module based on the level of ambient light present in the surrounding environment;
• compare color and luminance information corresponding to the two or more colors of the one or more graphic images generated by the graphic projection module for a potentially confusing color combination;
• and
• in response to determining the potentially confusing color combination exists, map color coordinates corresponding to the two or more colors on a color space chromaticity diagram as a first color and a second color.