Foveated Display Upscaling and Correction for Distortion Control
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Solution Overview
Problem
Existing display technologies in mixed reality environments face challenges in integrating foveated rendering with image quality algorithms, leading to distortions due to resolution discrepancies and misalignment of chromatic aberration correction and Mura compensation, which degrade image quality and user experience.
Innovation Solution
Implementing pixel duplication, horizontal and vertical upscaling through grouped gate scan, chromatic aberration correction with vertical-scale up and line selector functionalities, and Mura compensation to manage resolution and maintain image integrity during foveated rendering.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If foveated rendering is implemented to optimize processing resources, then productivity is improved, but manufacturing precision deteriorates due to distortion in select regions
Solution Approach 1:
The patent applies different quality levels to different regions of the display by implementing foveated rendering that prioritizes the central foveal region while reducing quality in peripheral areas. This resolves the contradiction by allowing resource optimization overall while maintaining high precision where needed most for human perception.
Solution Approach 2:
The patent changes resolution parameters dynamically across different display regions, using higher resolution in the foveal area and lower resolution in peripheral areas. This parameter variation enables both resource optimization and maintained precision in critical regions.
2Manufacturing precision
If chromatic aberration correction and Mura compensation are applied to correct distortions, then manufacturing precision is improved, but device complexity increases
Solution Approach 1:
The patent combines chromatic aberration correction and Mura compensation algorithms into a unified processing pipeline that operates on the foveated rendered image. This merging approach maintains high image quality precision while reducing overall system complexity compared to applying separate correction systems.
3Manufacturing precision
If pixel duplication and upscaling are implemented to maintain resolution in select regions, then manufacturing precision is improved, but device complexity increases
Solution Approach 1:
The patent performs pixel duplication and upscaling operations in advance during the rendering pipeline, before final display output. This preliminary action ensures resolution accuracy is maintained in the foveal region while organizing complexity into manageable preprocessing steps.
Data Source
AI summary
Methods, systems, and storage media for reducing distortion in a foveated resolution display (FRD) are disclosed. Exemplary implementations may: implement a pixel duplication for a select region of a display; implement a horizontal upscaling and a vertical upscaling through the grouped gate scan (GGS); implement a chromatic aberration correction (CAC) to the select region; in response to the CAC, implement a horizontal up-scale of the select region and a vertical up-scale of the select region; and implement a Mura compensation to the select region.