Multi-Feed Display Brightness Scaling for Uniform Stereo Regions
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Solution Overview
Problem
Current systems for delivering and controlling multi-feed imagery, such as stereo images, face challenges in managing brightness and interrelation between feeds, particularly in head-mounted displays, where uniformity and smooth transitions are crucial for optimal viewer experience and interaction.
Innovation Solution
A processor-based method and apparatus that configure and scale left and right visual feeds to define non-stereo and stereo display regions, with specific scaling profiles to achieve uniform or smooth brightness distributions across these regions, ensuring seamless transitions and reduced hardware requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple independent display screens are used to deliver different content feeds, then content versatility is improved, but device complexity and hardware requirements increase
Solution Approach 1:
The display area is segmented into multiple display regions (first display region, second display region, third display region) that can independently present different content feeds. This allows versatile content delivery using a single integrated display device rather than multiple independent screens.
Solution Approach 2:
Different display regions are assigned different visual characteristics and content types based on their spatial location. The first display region shows non-stereo content, the second shows stereo content, and the third shows non-stereo content, with each region optimized for its specific purpose.
2Adaptability or versatility
If stereo and non-stereo display regions are combined in a single display, then content versatility is improved, but brightness uniformity deteriorates due to additive effects in stereo regions
Solution Approach 1:
Brightness compensation is applied in advance to the non-stereo display regions (first and third regions) to account for the additive brightness effect that will occur in the stereo display region. This preliminary adjustment ensures that the perceived brightness is uniform across all display regions when viewed together.
Solution Approach 2:
The brightness parameter is selectively adjusted for different display regions. The stereo display region (second region) maintains normal brightness levels, while the non-stereo display regions (first and third regions) have their brightness reduced through compensation to achieve overall uniformity.
3Illumination intensity
If visual feeds are scaled to achieve uniform brightness distribution, then brightness uniformity is improved, but image quality may deteriorate due to scaling artifacts
Solution Approach 1:
Scaling and brightness compensation operations are applied locally to specific display regions rather than uniformly across the entire display. The first and third display regions receive brightness compensation, while the second stereo display region remains unchanged, preserving image quality in the stereo region while achieving uniformity overall.
Solution Approach 2:
Instead of scaling the entire visual feed, only the necessary portions (first and third display regions) undergo brightness adjustment. This partial action approach minimizes the impact on overall image quality while achieving the desired brightness uniformity.
Data Source
AI summary
Left and right visual feeds are configured to form contiguous non-stereo left, stereo central, and non-stereo right display regions. Viewed together, an appearance of full-width stereo three-dimensionality may be achieved. The left and right display regions have the brightness of the left or right feeds respectively, while the central display region has the combined brightness of the left and right feeds. The parts of the left and right feeds that cooperate to form the stereo central display region may be scaled in brightness, so that the central display area is of uniform brightness with the left and right display areas, or smoothly varying, continuous, varying in a controlled manner, etc., rather than appearing as a sharply-defined area twice as bright as the left and right display areas. Scaling profiles may be uniform step-downs, linearly decreasing, quadratically decreasing, otherwise curved, some combination thereof, etc.