Multi-Viewpoint 3D Display for Simultaneous User Viewing
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Solution Overview
Problem
Conventional Eye-sensing Light Field Display (ELFD) technologies can only perform eye sensing and display for one user at a time, limiting their application in scenarios where multiple people view the display from different locations, such as hotels or entertainment facilities.
Innovation Solution
An image display system with a display capable of simultaneously displaying different images in multiple directions, utilizing a storage unit, image generation unit, and image display unit to generate and display three-dimensional objects from various user viewpoints, allowing multiple users to experience a unified three-dimensional image without discomfort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional Eye-sensing Light Field Display (ELFD) technology is used to achieve three-dimensional image display, then one user can experience a realistic optical illusion, but only one user can be served at a time
Solution Approach 1:
The patent segments the three-dimensional rendering process by pre-calculating and storing display images for multiple discrete viewpoint positions. Instead of performing real-time eye sensing and image generation for each user, the system divides the viewing space into multiple predetermined viewpoint locations and prepares corresponding images in advance, allowing multiple users to be served simultaneously without real-time computation for each user.
Solution Approach 2:
The patent applies preliminary action by pre-generating and storing display images for multiple viewpoint positions before actual use. The storage unit holds these pre-computed images, enabling the system to quickly retrieve and display appropriate images for multiple users simultaneously without performing complex real-time calculations for each user's specific position.
2Adaptability or versatility
If the display shows different images for different users simultaneously, then multiple users can view from different locations, but the display must handle multiple viewpoint directions
Solution Approach 1:
The patent applies local quality by tailoring the display content to each specific viewpoint direction. Different regions of the display output are optimized for different viewing angles and user positions. The system generates and displays different images in different display directions corresponding to different user locations, ensuring each user receives optimized visual content for their specific position rather than a generic omnidirectional display.
3Measurement precision
If real-time eye sensing is performed for each user, then accurate three-dimensional rendering is achieved, but processing time increases for multiple users
Solution Approach 1:
The patent applies copying by creating pre-computed copies of three-dimensional scenes from multiple predetermined viewpoint positions. Instead of performing real-time eye sensing and image generation for each user, the system has already created accurate rendered copies of the scene from various angles and stored them. When multiple users view simultaneously, the system retrieves these pre-made copies rather than generating new images, maintaining measurement precision while eliminating real-time processing delays.
Data Source
AI summary
A display has a screen that can simultaneously display different images in a plurality of display directions. An image generation unit generates, for each of one or more user viewpoint positions within a user space, which is forward from the screen of the display and in which one or more users viewing an image displayed on the screen can be present, a display image of a three-dimensional object, in which the three-dimensional object appears in the same manner as when the three-dimensional object in a virtual space is being viewed via the screen from the user viewpoint position. An image display unit causes the screen of the display to display, for each of the user viewpoint positions, the display image generated so as to correspond to the user viewpoint position, the display images being displayed in user viewpoint position directions that correspond to the user viewpoint positions.