Spatial Positioning for Detachable VR Headsets
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Solution Overview
Problem
Current virtual reality (VR) head-mounted display devices with mobile terminals lack an accurate method for spatial positioning of separate VR components, affecting smooth man-machine interaction and gaming experience.
Innovation Solution
A spatial positioning method for a separate virtual system, which includes a virtual head-mounted display device, a mobile terminal with a first inertial sensor, and a controller with an infrared sensor and a second inertial sensor. The method involves capturing images with a camera, detecting IMU data, and calculating spatial positioning using image feature points and IMU data to determine the 3DOF and 6DOF of the VR head-mounted display device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the mobile terminal is detachably attached to the virtual head-mounted display device, then the convenience and adaptability of the system is improved, but the spatial positioning accuracy deteriorates
Solution Approach 1:
The patent introduces an intermediary positioning system consisting of feature points, reference images, and calculation units that mediate between the detachable mobile terminal and the head-mounted display device. This intermediary system captures images, extracts feature points, and calculates spatial positioning information to bridge the gap created by detachable attachment, thereby maintaining positioning accuracy despite the separable connection.
2Ease of operation
If the mobile terminal is disassembled from the virtual head-mounted display device, then the flexibility and ease of operation is improved, but the man-machine interaction smoothness deteriorates
Solution Approach 1:
The patent implements preliminary action by pre-establishing a positioning system with feature points and reference images before the mobile terminal is detached. When disassembly occurs, the system has already captured the necessary spatial information, allowing for smooth repositioning and reattachment without compromising man-machine interaction. The positioning calculation is prepared in advance to ensure continuous smooth operation.
3Measurement precision
If traditional VR head-mounted display devices are used as integrated units, then the spatial positioning is maintained, but the convenience and adaptability is limited
Solution Approach 1:
The patent applies segmentation by dividing the traditional integrated VR system into separable components: the head-mounted display device and the mobile terminal. Despite this segmentation, the system maintains spatial positioning accuracy through the implementation of feature point extraction, reference image matching, and calculation units that track the relative positions of separated components, thereby achieving both adaptability and positioning precision.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enhances the spatial positioning accuracy of the mobile terminal and improves man-machine interaction, thereby enhancing the gaming experience and the performance of the head-mounted reality device separate from the mobile terminal.
Implementation Method 1
The mobile terminal is provided with a first inertial sensor, and the first inertial sensor is configured to detect IMU data of the mobile terminal
Implementation Method 2
controlling the camera to capture a first image where the virtual head-mounted display device is; extracting image feature points in the first image
Implementation Method 3
a controller with an infrared sensor and a second inertial sensor
Data Source
AI summary
Disclosed are a spatial positioning method of a separate virtual system, and a separate virtual system. The spatial positioning method of the separated virtual system provided by the present application, when the mobile terminal is attached to the virtual head-mounted display device and the mobile terminal performs the virtual mode, the 3DOF is determined from the first image captured by the camera, and the rotational freedom degree is obtained based on the first inertial sensor, so the spatial positioning of the virtual head-mounted display device is determined, and the spatial positioning accuracy of the mobile terminal. In addition, the man-machine interaction based on the spatial positioning enhances the game experience, thereby enhancing the performance of the head-mounted reality device separate from the mobile terminal.