VR Sickness Reduction via Head-Mounted Display Rocking
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing VR sickness reduction systems fail to effectively coordinate display and vibration to match the acceleration of the point of view in virtual environments, leading to continued user discomfort.
Innovation Solution
A VR sickness reduction system that includes a head-mounted display with a rocking section and a control system to synchronize rocking with the acceleration status of the point of view in the displayed moving image, using data to determine and control the rocking based on the motion of a virtual camera within the virtual space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If low-frequency vibration is used to reduce VR sickness, then user discomfort is reduced, but the vibration is irrelevant to the virtual environment events and does not coordinate with the display
Solution Approach 1:
The vibration motor's operation is dynamically adjusted based on the acceleration status of the point of view in the moving image. The control section activates vibration only during accelerated motion phases, making the vibration pattern adaptive to the virtual environment's events rather than using continuous or fixed low-frequency vibration.
Solution Approach 2:
The system uses feedback from the moving image data about point of view acceleration to control the vibration motor. The control section continuously monitors the acceleration status and adjusts vibration output accordingly, creating a closed-loop system that coordinates display content with haptic feedback.
2Object-affected harmful factors
If the rocking section rocks the user's head continuously, then VR sickness is reduced, but the rocking does not match the acceleration status of the point of view
Solution Approach 1:
The rocking section's operation is dynamically controlled to match the acceleration status of the point of view. The control section adjusts the timing and intensity of rocking based on real-time analysis of the moving image data, ensuring synchronization between virtual camera acceleration and physical head rocking.
Solution Approach 2:
The control section analyzes the moving image data to predict acceleration phases and activates the rocking section in advance or in precise coordination with these phases. This preliminary action ensures that the rocking matches the virtual environment's motion events without lag or desynchronization.
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
This synchronization reduces VR sickness by aligning the physical rocking of the head-mounted display with the virtual environment's motion, improving user experience and reducing discomfort.
Implementation Method 1
a rocking section allowing rocking of a head of the user on which the head-mounted display is mounted
Data Source
AI summary
Methods and/or apparatus provide for virtual sickness reduction by carrying out actions, including: positioning a headband of a head-mounted display to wrap around a user's head; causing a display section, coupled to the headband, to be positioned in front of the user when the head-mounted display is worn by the user, and to display a moving image representing a state viewed from a point of view; and controlling whether or not to rock a rocking section, which is located at a front of the headband, depending on an acceleration status of the point of view in the moving image displayed on the display section.