Shared Virtual Space Positioning Using Screen Reference Imaging
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Solution Overview
Problem
Existing technologies face challenges in precisely positioning and orienting electronic devices in shared virtual spaces, particularly in augmented and virtual reality applications, limiting the ability to share virtual worlds effectively between users.
Innovation Solution
A method involving imaging a reference object on a first device, obtaining its known physical dimensions and appearance, and determining the relative orientation and distance to a second device based on apparent dimensions, allowing precise positioning and orientation in the shared virtual space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a reference object is displayed on the first device and imaged by the second device to determine relative position and orientation, then positioning precision and orientation accuracy in shared virtual space are improved, but device complexity and processing requirements increase
Solution Approach 1:
A reference object is introduced as an intermediary element displayed on the first device's screen. The second device images this reference object to establish spatial relationship and determine relative position and orientation. The reference object acts as a mediator that enables precise positioning without requiring direct complex communication between devices.
Solution Approach 2:
The reference object is a visual copy or representation that encodes spatial information. By imaging this visual copy and comparing it with known reference data, the system determines positioning and orientation information without needing direct physical measurement or complex sensor arrays.
2Reliability
If the second device images the reference object and accesses virtual space layer information to determine position and orientation, then reliability of shared virtual space is improved, but loss of time for data transmission and processing increases
Solution Approach 1:
The virtual space layer information, including reference object characteristics and positioning data, is pre-loaded and stored in a cloud-based virtual space layer. When the second device needs positioning information, it already has access to pre-prepared data, eliminating the need for real-time computation and reducing data transmission time while maintaining reliability.
3Manufacturing precision
If known physical dimensions and appearance of the reference object are obtained and compared with apparent dimensions from imaging, then manufacturing precision of positioning system is improved, but measurement precision requirements increase
Solution Approach 1:
The system compares multiple parameters of the reference object including its apparent dimensions, shape, and visual appearance features. By analyzing changes in these parameters between the known reference data and the imaged data, the system calculates precise positioning and orientation information, transforming visual parameter variations into accurate spatial measurements.
Data Source
AI summary
A method for positioning electronic devices in a virtual space comprising: imaging, by a camera of a second electronic device, a reference object displayed at a first electronic device; obtaining, from the first electronic device, a pointer to information pertaining to position of the first electronic device in a virtual space; obtaining physical dimensions of the reference object; obtaining current position of the first electronic device in the virtual space; determining a relative distance of the second electronic device to the first electronic device based on the physical dimensions of the reference object and dimensions of the reference object as imaged by the camera of the second electronic device; determining position of the second electronic device in the virtual space based on the current position of the first electronic device in the virtual space and the determined relative distance of the second electronic device to the first electronic device.