Shared Virtual Object View Switching for Multi-User Video Sharing
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Solution Overview
Problem
Conventional video sharing systems experience increased computational load and display congestion as the number of sharing users grows, leading to duplications of objects in virtual spaces.
Innovation Solution
A video sharing system and method that switches the display mode of a personalized virtual object from a user's viewpoint position to another user's viewpoint direction, using a mobile information terminal to synchronize the display of the object across multiple users, thereby preventing duplicates and reducing computational load.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the number of sharing users increases, then the number of displayed objects increases proportionally, but this results in increased computational load and display congestion within the virtual space
Solution Approach 1:
The patent merges multiple duplicate object instances into a single shared object in the virtual space. Instead of creating separate object copies for each user, the system combines them into one unified object that all users can interact with simultaneously, thereby reducing computational load and display congestion while maintaining multi-user functionality
Solution Approach 2:
The shared object is designed to serve multiple users simultaneously with universal functionality. A single object instance provides services to all connected users without requiring individual duplicates, enabling the system to handle an increasing number of users without proportionally increasing system complexity
2Ease of operation
If duplicate objects are created for each user, then each user can interact with the object independently, but this increases the number of displayed objects and causes display congestion
Solution Approach 1:
The patent resolves the conflict between independent interaction and display space by introducing a new dimensional approach - using user-specific viewpoint directions and virtual camera positions. Each user interacts with the single shared object from their own unique perspective in 3D space, maintaining independent interaction capability without creating spatial duplicates that would cause display congestion
3Adaptability or versatility
If the system displays objects from each user's viewpoint position, then each user sees the object from their perspective, but this creates multiple duplicates and increases computational load
Solution Approach 1:
Instead of creating full object duplicates for each viewpoint, the system uses virtual camera copying - creating lightweight camera representations that capture each user's viewpoint direction. These virtual cameras render the single shared object from different angles, providing viewpoint customization without the computational overhead of duplicating the actual object geometry and physics for each user
Data Source
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AI summary
A video sharing system includes a first mobile information terminal and a second mobile information terminal, the first mobile information terminal includes a first display, a first communication interface that transmits and receives data with the second mobile information terminal, and a first processor configured to control the first display and the first communication interface, the first processor executes visual sharing control by, in accordance with a selection operation made by a user of the first mobile information terminal or a user of the second mobile information terminal, switching a display mode of a personalized display object, which is a virtual object designated for visual sharing, from a video as seen from a viewpoint position of the first mobile information terminal to a video as seen from a viewpoint direction of the second mobile information terminal based on data received via the first communication interface, and the first display displays the personalized display object using the video as seen from the viewpoint direction of the second mobile information terminal.