Color Image Perception Using Multi-Primary Display Mapping

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Solution Overview

Problem

Existing image display technologies fail to effectively accommodate color vision deficiencies, leading to difficulties in distinguishing colors such as red and green or blue and yellow, and often require increased power consumption and operational costs due to limited color gamut and metameric errors.

Innovation Solution

A system utilizing a multi-primary color display system, including at least four primaries, such as red, green, blue, cyan, and magenta, with an image data converter that encodes and decodes image data in the CIE Yxy color space to optimize image display based on individual color perception tests, enabling enhanced color perception for users with color vision deficiencies.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If a conventional three-primary color display system is used, then device complexity is low, but color perception accuracy for users with color vision deficiencies deteriorates

Engineering Contradiction:

Improvecolor perception accuracyVSAvoiddisplay system complexity

Core Design Contradiction:

Measurement precisionVSDevice complexity

Solution Approach 1:

The patent segments the color display into multiple independent primary channels (at least four primaries including red, green, blue, cyan, magenta, and/or yellow) rather than using conventional three primaries. This segmentation allows independent optimization of each primary's contribution to color perception, enabling better differentiation of colors for users with color vision deficiencies while maintaining manageable system complexity through modular architecture

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent transforms the color space from conventional three-dimensional RGB to a multi-dimensional color representation using at least four primaries. This dimensional expansion provides additional degrees of freedom for color differentiation, allowing the system to distinguish colors that appear similar to users with color vision deficiencies while using the same display hardware

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

2Measurement precision

If image data is converted to accommodate color vision deficiencies, then color differentiation improves, but processing time increases

Engineering Contradiction:

Improvecolor differentiationVSAvoidimage processing time

Core Design Contradiction:

Measurement precisionVSLoss of time

Solution Approach 1:

The patent performs color space conversion and optimization in advance during image acquisition or encoding, rather than delaying processing until display. By converting image data to the optimized color space beforehand and storing the transformation parameters, the system eliminates real-time processing delays while maintaining enhanced color differentiation capability

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent changes the parameter representation of color data by converting from conventional RGB to a multi-primary color space with at least four primaries. This parameter transformation enables better color differentiation through mathematical optimization of the color space mapping, achieving improved perception without requiring complex real-time processing

Inventive Principle:

Principle #35Parameter changes

3Reliability

If conventional color conversion is used, then compatibility with existing standards is maintained, but metameric errors increase

Engineering Contradiction:

Improvecolor accuracyVSAvoidmetameric errors

Core Design Contradiction:

ReliabilityVSObject-generated harmful factors

Solution Approach 1:

The patent introduces an intermediary color space transformation layer that converts between conventional RGB and the optimized multi-primary color space. This intermediary transformation matrix acts as a mediator that preserves compatibility with existing standards while eliminating metameric errors by providing an additional conversion stage that accounts for individual color vision characteristics

Inventive Principle:

Principle #24Intermediary (Mediator)

4Adaptability or versatility

If a multi-primary color display system is implemented, then color perception for users with color vision deficiencies improves, but device complexity increases

Engineering Contradiction:

Improvecolor perception adaptabilityVSAvoiddisplay system complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent implements a universal color processing architecture that can operate in multiple modes: conventional three-primary mode for standard viewing and enhanced multi-primary mode for users with color vision deficiencies. The system includes adaptive capabilities to detect user needs and automatically switch between processing modes, providing versatility without permanently increasing device complexity

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS12462773B1Optimization of image perception for color vision deficiencies

Publication Date: 2025.11.04 BAYLOR UNIVERSITY

AI summary

The present invention includes systems and methods for optimizing perception of image data. Color vision impairment affects a user's ability to distinguish between certain colors, reducing the impact of color images. Mapping color image data to an expanded color gamut increases contrast between colors and the available number of distinct colors in a set of image data, which improves the ability of a user with color vision impairment to see differences between colors. The present invention includes systems and methods for determining a type of color vision impairment in order to provide customized optimization of image data for improved color perception.