VR Sickness Detection via Visual Vestibular Mismatch Analysis
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Solution Overview
Problem
Virtual reality motion simulators often cause sickness due to mismatches between visual and vestibular perceptions, leading to user disorientation, as existing systems fail to effectively compare and correct these perceptions in real-time.
Innovation Solution
A virtual reality system that includes a head-mounted device with IMU sensors and a platform with IMU sensors, which determines visual and vestibular perception measurements and compares them to identify potential mismatches, thereby preventing user sickness by correcting orientation discrepancies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If visual and vestibular perception measurements are compared in real-time to detect mismatches, then user sickness is prevented, but system complexity increases
Solution Approach 1:
The system divides the perception detection into separate visual perception measurement (via head-mounted device sensors) and vestibular perception measurement (via platform sensors), comparing them independently to identify mismatches causing sickness
Solution Approach 2:
The system continuously compares visual and vestibular perception measurements in real-time and provides feedback to adjust content or platform motion to eliminate mismatches, preventing user sickness
2Measurement precision
If multiple IMU sensors are integrated in head-mounted device and platform, then perception measurement accuracy improves, but device complexity increases
Solution Approach 1:
The system combines multiple IMU sensors (accelerometers, gyroscopes, magnetometers) in both the head-mounted device and platform, merging their data streams to comprehensively measure visual and vestibular perceptions for accurate mismatch detection
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
The system effectively detects and prevents virtual reality sickness by ensuring that visual and vestibular perceptions align, enhancing user experience by reducing disorientation and allowing developers to remove sickness-causing content during application development.
Implementation Method 1
The head mounted virtual reality device includes at least one head mounted inertial measurement unit (IMU) sensor. The platform includes a platform IMU sensor.
Data Source
AI summary
The present disclosure relates to methods, non-transitory computer readable media, and devices, for detecting virtual reality sickness causing content in virtual reality motion simulators. A visual perception measurement of a virtual reality content being displayed on a head-mounted virtual reality device of a virtual reality motion simulator is determined. A vestibular perception measurement of the virtual reality content is then determined. The visual perception measurement and the vestibular perception measurement of the virtual reality content are compared. An indication of a user experience in the virtual reality motion simulator is determined based on the comparison and the indication of the user experience is output.