Light Field Display Controller for Multi-Viewer Eye Tracking
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional light field displays struggle to effectively provide stereoscopic images to multiple viewers, as the number of viewers increases, making it difficult to prepare and control pixels for each viewer's perspective.
Innovation Solution
An information processing apparatus that identifies the three-dimensional coordinate position of each viewer's eyes, generates images accordingly, and outputs them to specific channels associated with light rays emitted from the light field display, ensuring each viewer receives a tailored image.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single light field display is viewed by multiple viewers, then the display can serve multiple users, but it becomes difficult to prepare pixels corresponding to each viewer's perspective and control light to be emitted from each pixel
Solution Approach 1:
The patent segments the light field display into multiple independent pixel groups, where each pixel group corresponds to a specific viewer's perspective. The controller divides the overall image into multiple sub-images, with each sub-image being directed to a specific pixel group. This segmentation allows each pixel group to independently control light emission for its associated viewer, thereby managing complexity through division while supporting multiple viewers simultaneously.
Solution Approach 2:
The patent implements local quality by assigning different pixel control characteristics to different spatial locations. Each pixel group is optimized for a specific viewer position, with its own set of control parameters for light emission. This allows the display to provide high-quality stereoscopic images tailored to each viewer's perspective without requiring the entire display system to manage all viewer perspectives simultaneously, thus reducing overall control complexity.
2Adaptability or versatility
If pixels are prepared for each viewer's perspective, then stereoscopic images can be provided to multiple viewers, but the number of pixels and control channels required increases significantly
Solution Approach 1:
The patent makes each pixel group universal by enabling it to serve multiple purposes: it can display different sub-images for different viewers at different times, and can be dynamically reconfigured based on viewer position. This multi-functionality allows the same physical pixel infrastructure to support multiple viewers without requiring separate dedicated pixel sets for each viewer, thereby reducing the total quantity of pixels and channels needed.
Solution Approach 2:
The patent introduces dynamics by making the pixel-group-to-viewer assignment flexible and changeable. The controller can dynamically assign different pixel groups to different viewers based on real-time viewer position detection, and can dynamically switch which sub-image is displayed on which pixel group. This dynamic allocation allows the system to reuse the same pixels for different viewers at different times, reducing the total pixel count required compared to static dedicated assignments.
Data Source
AI summary
A controller of an information processing apparatus is configured to, for each of multiple viewers of a light field display: identify a three-dimensional coordinate position of eyes; generate an image according to the identified three-dimensional coordinate position of the eyes; identify, based on the identified three-dimensional coordinate position of the eyes, a channel to which the generated image is to be output, of a plurality of channels associated with a plurality of light rays to be emitted from the light field display, respectively; and output the generated image to the identified channel.