Adaptive HUD Color Adjustment for Background Contrast
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Solution Overview
Problem
Head-up display (HUD) technology in vehicles struggles with color confusion between projected information and external background objects, leading to potential driving hazards and user discomfort due to similar color schemes.
Innovation Solution
A method and system that determine the color attributes of the background image and adjust the HUD projection accordingly to prevent confusion by using internal and external cameras to identify overlapping objects and adjust the foreground image's color to a contrasting value.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the HUD device displays information with a fixed color (e.g., gray) on the front windshield, then the display is simple and stable, but the displayed image may be confused or mixed up with background objects of similar colors outside the vehicle, interfering with the driver's line of sight
Solution Approach 1:
The patent applies dynamics by making the HUD display color adaptive rather than fixed. The system dynamically adjusts the color of displayed information based on the detected background environment, transitioning from a static gray display to a dynamic color selection process that responds to external conditions, thereby avoiding color confusion with background objects
Solution Approach 2:
The patent implements parameter changes by modifying the color parameters (RGB values) of the HUD display based on background analysis. The system calculates color differences between displayed information and background objects, and adjusts display parameters to maximize contrast, transforming the fixed color parameter into a variable that adapts to environmental conditions
2Use of energy by moving object
If the brightness provided by the projected unit during projection is not high enough, then the energy consumption is low and the display is gentle on the driver's eyes, but if the external sight/image is bright, the driver may not be able to see the projection clearly
Solution Approach 1:
The patent applies dynamics by implementing adaptive brightness control that responds to external lighting conditions. The system dynamically adjusts projection brightness based on detected environmental light levels, transitioning from a static low-brightness mode to a dynamic adjustment mechanism that maintains visibility while managing energy consumption according to actual viewing conditions
Solution Approach 2:
The patent implements parameter changes by modifying the brightness parameter of the projection based on background luminance analysis. The system calculates luminance differences between displayed information and background, and adjusts brightness parameters to ensure adequate contrast and visibility while managing energy consumption, transforming brightness from a fixed low value to an adaptive parameter
Data Source
AI summary
A method for adjusting image includes determining, from a background image, a background sub-image corresponding to a foreground sub-image. The foreground sub-image is within a first range of a foreground image, the background image is an image of an external environment, and the foreground image is an image produced by a display device. The method also includes determining a first image attribute of the background sub-image; and adjusting the foreground sub-image based on at least the first image attribute.