Multi-Primary Color Conversion for Wide Gamut Displays
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Solution Overview
Problem
Existing color systems, particularly RGB-based displays, are limited in their color gamut and face challenges in accurately reproducing a wider range of colors due to technical methods that increase viewer metameric errors and power consumption, leading to increased costs.
Innovation Solution
A multi-primary color system utilizing a set of image data in the International Commission on Illumination (CIE) Yxy color space, with an image data converter that encodes and decodes luminance and colorimetric coordinates, enabling display on viewing devices with enhanced color reproduction, including medical imaging applications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If RGB-based color systems are used, then device complexity is reduced, but color gamut is limited and metameric errors increase
Solution Approach 1:
The patent segments the color reproduction task into multiple independent primary color channels (red, green, blue, cyan, magenta, yellow) rather than using a single RGB triplet. This segmentation allows each primary to be independently controlled and optimized, expanding the overall color gamut while maintaining manageable system complexity through modular processing architecture
Solution Approach 2:
The patent transitions from the traditional 3-dimensional RGB color space to a 6-dimensional multi-primary color space by adding three complementary primaries (cyan, magenta, yellow). This dimensional expansion enables representation of colors that are inaccessible in the conventional RGB system, effectively increasing color gamut coverage
2Adaptability or versatility
If color gamut is expanded using traditional methods, then color range increases, but metameric errors and power consumption increase
Solution Approach 1:
The patent changes the fundamental parameters of the color system by introducing six independent primary color channels with specific spectral characteristics. This parameter change enables more efficient color reproduction where each primary contributes uniquely to the overall color output, reducing redundant energy expenditure and minimizing metameric errors through optimized spectral power distributions
3Measurement precision
If more primary colors are added to expand gamut, then color accuracy improves, but system complexity and cost increase
Solution Approach 1:
The patent implements a universal processing architecture that handles all six primary color channels through shared computational resources and standardized interfaces. This multi-functional design allows the system to process multiple color primaries using the same hardware infrastructure, reducing overall system complexity despite the increased number of color channels
Solution Approach 2:
The patent introduces an intermediary color conversion and processing layer that mediates between the six-primary input and the display output. This intermediary processing stage manages the complexity by providing standardized transformation algorithms and buffer management, isolating the complexity from both the input acquisition and output display stages
Data Source
AI summary
The present invention includes systems and methods for a multi-primary color system for display. A multi-primary color system increases the number of primary colors available in a color system and color system equipment. Increasing the number of primary colors reduces metameric errors from viewer to viewer. One embodiment of the multi-primary color system includes Red, Green, Blue, Cyan, Yellow, and Magenta primaries. The systems of the present invention maintain compatibility with existing color systems and equipment and provide systems for backwards compatibility with older color systems.