ABD Compensation for Color Accuracy Across Display Types
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Solution Overview
Problem
Displays with average brightness dependency (ABD) characteristics differ from those without, leading to incorrect color reproduction and unsatisfactory appearance on target displays, as existing technologies fail to accurately compensate for these differences.
Innovation Solution
A method and system for compensating ABD differences involve color correcting source picture content on a reference display and applying an ABD compensation characteristic to simulate the target display's behavior, using a color correction module, simulation module, and compensation module to ensure accurate color representation across varying ABD displays.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If color correction is performed on a reference display without ABD characteristics, then the color correction process is simplified, but the color reproduction becomes incorrect on target displays with ABD characteristics
Solution Approach 1:
The patent applies preliminary action by simulating the ABD characteristics of the target display during the color correction process on the reference display. The simulation module pre-calculates and applies compensation characteristics that anticipate how the ABD display will reproduce colors, so that when the corrected content is displayed on the ABD target display, the colors appear correct despite the display's average brightness dependency characteristics.
2Manufacturing precision
If ABD compensation is applied to content created for displays without ABD, then color accuracy on ABD displays is improved, but the processing complexity increases
Solution Approach 1:
The patent uses an intermediary approach by introducing a simulation module that acts as a mediator between the color correction process and the ABD display. The simulation module contains ABD characteristics data and generates compensation characteristics that translate between the reference display color space and the ABD target display color space, thereby enabling accurate color reproduction without requiring complex hardware modifications.
3Adaptability or versatility
If displays with different ABD characteristics are used, then display technology versatility is improved, but color consistency across different displays deteriorates
Solution Approach 1:
The patent applies parameter changes by dynamically adjusting the compensation characteristics based on the specific ABD parameters of the target display. The system stores multiple sets of ABD characteristics data corresponding to different display types and technologies, and selects and applies the appropriate compensation parameters depending on the target display's ABD characteristics, thereby maintaining color consistency across diverse display technologies.
Data Source
AI summary
A system and method for compensating for average brightness dependency (ABD) differences between displays with and without average brightness dependency (ABD) includes color correcting source picture content on a reference display to output color corrected picture content. In addition, an ABD simulation process uses the color corrected picture content to simulate the display of content on the reference display. Subsequently, a compensation process receives the color corrected picture content and information from the simulation process and applies an ABD compensation characteristic to the color corrected picture content for correctly displaying the source picture content on a display with different ABD characteristics than the reference display.