Multi-Device AR Virtual Space Consistency via Direct State Transmission
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Solution Overview
Problem
Conventional augmented reality technologies lack the ability to maintain consistency and share changes in a virtual space across multiple information processing devices, leading to inconsistencies and a lack of unity among users.
Innovation Solution
An information processing system comprising multiple devices that capture images of a real space, set a virtual space, and transmit data on changes in the virtual space, ensuring consistency through a direct communication method without the need for relay devices, using markers to detect position and attitude changes, and allowing for shared enjoyment and unity among users.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If multiple information processing devices independently process augmented reality without communication, then each device can operate autonomously, but consistency and unity of the virtual space across devices deteriorates
Solution Approach 1:
Each information processing device transmits detected virtual space state changes to other devices and receives feedback about their detected changes. This feedback mechanism ensures all devices maintain a consistent understanding of the shared virtual space while allowing autonomous operation.
Solution Approach 2:
The patent introduces a communication protocol as an intermediary that mediates between independently operating devices. This protocol enables exchange of virtual space state data without requiring centralized control, maintaining both autonomy and consistency.
2Reliability
If all devices continuously transmit virtual space state data, then consistency across devices is improved, but communication overhead and energy consumption increases
Solution Approach 1:
Instead of continuous transmission, devices transmit virtual space state changes periodically or event-driven when changes occur. This reduces communication frequency while maintaining consistency, lowering energy consumption compared to continuous transmission.
Solution Approach 2:
The system extracts and transmits only the essential state change data that is necessary for maintaining consistency, rather than transmitting all possible information. This reduces communication overhead and energy usage while preserving the essential virtual space coherence.
3Reliability
If a relay device is used to coordinate communication between multiple devices, then consistency is improved, but system complexity increases
Solution Approach 1:
Each device combines the functions of detecting local virtual space changes, transmitting its own state, and receiving other devices' states into a single integrated system. This eliminates the need for separate relay devices, reducing system complexity while maintaining consistency through direct peer-to-peer communication.
Data Source
AI summary
An example information processing system which includes a plurality of information processing devices, the respective information processing devices carrying out imaging by an imaging device, wherein the respective information processing devices include: an imaging processing unit to generate a captured image by sequentially capturing images of a real space; a virtual space setting unit to set a virtual space commonly used by another information processing device which captures an image of one of an imaging object that is included in a captured image, and an imaging object, at least a portion of external appearance of which matches the imaging object, based on at least the portion of the imaging object included in the captured image; and a transmission unit to send data relating to change in a state of the virtual space, to the other information processing device, when the change in the state of the virtual space is detected.