Multi-Viewpoint 3D Display for Simultaneous Multi-User Viewing
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Solution Overview
Problem
Existing naked-eye 3D stereoscopic displays are limited to single-user viewing and lack efficient multi-user simultaneous viewing capabilities, despite the introduction of eyeball tracking modules.
Innovation Solution
A method and apparatus for displaying multi-viewpoint video that acquires and combines viewpoint-position combinations of multiple users within a visible area, selecting target viewpoint images from a multi-viewpoint-image set, and adjusting screen refresh rates to enable simultaneous multi-user 3D viewing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a cylindrical-lens film is adhered in front of a traditional display to achieve 3D displaying, then the 3D effect is realized at particular positions, but the system is limited to single-user viewing and cannot support multiple users simultaneously
Solution Approach 1:
The patent segments the viewing experience by dividing the screen into multiple viewpoint regions, each corresponding to a specific user position. The system captures images from multiple viewpoints simultaneously and directs appropriate viewpoints to different screen regions, enabling multiple users to view content designed for their respective positions without requiring separate display systems for each user.
Solution Approach 2:
The patent makes the display system universal by enabling it to serve multiple users simultaneously with different viewing positions. The system captures images from multiple viewpoints and dynamically assigns appropriate viewpoints to different screen regions based on user positions, allowing the same display system to accommodate various users without requiring separate dedicated systems for each user.
2Adaptability or versatility
If an eyeball tracking module is added to improve usage experience and sense of reality, then the 3D effect is enhanced for single user, but the system still cannot achieve efficient multi-user simultaneous viewing
Solution Approach 1:
The patent extracts the eyeball tracking function from being a central control mechanism and instead uses simpler position detection. Rather than tracking each user's eyeballs in real-time to dynamically adjust content, the system pre-captures images from multiple viewpoints and uses simpler position detection to assign appropriate viewpoints to screen regions, reducing the complexity of tracking and control systems while still enabling multi-user viewing.
Solution Approach 2:
The patent performs preliminary action by capturing images from multiple viewpoints in advance before users arrive. The system pre-processes and stores these multi-viewpoint images, then simply assigns appropriate pre-captured viewpoints to different screen regions based on user positions, eliminating the need for complex real-time tracking and dynamic content generation during actual viewing.
3Productivity
If multiple users are served with separate display systems, then each user gets optimal viewing experience, but the efficiency of usage and cost increase significantly
Solution Approach 1:
The patent merges multiple viewing experiences into a single display system by capturing images from multiple viewpoints simultaneously and displaying appropriate viewpoints in different screen regions. This allows multiple users to share one display system while each receives content optimized for their position, combining the resources of a single system with the benefits of multiple dedicated systems.
Solution Approach 2:
The patent adds a spatial dimension to the display by organizing content across different screen regions corresponding to different user positions. Instead of requiring separate systems for each user, the system uses spatial arrangement of viewpoints on the screen to differentiate user experiences, effectively using the screen's spatial dimensions to multiplex multiple viewing experiences simultaneously.
Data Source
AI summary
The present disclosure provides a method and apparatus for displaying a multi-viewpoint video, a displaying device, a medium and a program, which relates to the technical field of displaying. The method includes: acquiring different viewpoint-position combinations of at least two users located within a visible area of a screen; from a predetermined multi-viewpoint-image set, screening out multi-viewpoint images corresponding to each of viewpoint-position combinations; regarding visible viewpoint images of at least the corresponding viewpoint-position combinations among the multi-viewpoint images as target viewpoint images; combining the target viewpoint images of at least two viewpoint-position combinations as video frames, to obtain the multi-viewpoint video; and displaying the multi-viewpoint video by using the screen.