Head-Mounted Display Image Overlay for Vehicle Motion Sickness
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Solution Overview
Problem
Rear seat entertainment systems in vehicles face limitations due to packaging constraints, resulting in small monitor sizes and obstructed views, which diminish the movie-watching experience and can cause motion sickness when using head-mounted displays during vehicle motion.
Innovation Solution
A vehicle image displaying apparatus that uses a head-mounted display device with a computing device to overlay first images onto a sequence of panoramic vehicle camera images, adjusting image properties based on vehicle motion parameters to provide an unobstructed view and prevent motion sickness by matching the peripheral optical flow with the user's perceived body motion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a head-mounted display device is used to provide entertainment content, then the viewing experience is improved with unobstructed view and large virtual screen size, but motion sickness occurs due to conflict between visual input and body motion perception
Solution Approach 1:
The system dynamically adjusts the display content based on real-time vehicle motion parameters. The computing device receives acceleration data from sensors and modifies the entertainment content display accordingly, changing opacity, position, or content type to match the vehicle's motion state, thereby reducing the sensory conflict that causes motion sickness
Solution Approach 2:
The system changes display parameters such as opacity, brightness, and content presentation based on vehicle motion parameters. When acceleration exceeds thresholds, the system adjusts these parameters to reduce visual-vestibular conflict, directly addressing the motion sickness problem while maintaining entertainment quality
2Ease of manufacture
If traditional rear seat entertainment systems with fixed monitors are used, then the installation is simple, but the monitor size is limited by packaging constraints and the view is obstructed by vehicle structures
Solution Approach 1:
The system transitions from fixed 2D monitors mounted on seat backs to head-mounted displays that provide a large virtual screen in 3D space. This dimensional change eliminates packaging constraints and provides an immersive entertainment experience without obstructing the passenger's view of the vehicle environment
3Productivity
If entertainment content is displayed during vehicle motion, then passengers can enjoy movies and media, but the display may cause distraction and motion sickness
Solution Approach 1:
The system continuously monitors vehicle motion parameters through sensors and uses this feedback to adjust the entertainment display in real-time. Based on acceleration thresholds and motion patterns, the system modifies content presentation to minimize distraction and motion sickness, ensuring safe and comfortable entertainment consumption during vehicle motion
Solution Approach 2:
The system proactively adjusts display parameters before motion sickness sets in by monitoring vehicle motion parameters in advance. When acceleration patterns indicate potential discomfort, the system preemptively modifies the entertainment content display to prevent the harmful effects of sensory conflict
Data Source
Figure 1
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Figure 3A~3B
AI summary
The present invention relates to a method of displaying image data on a head-mounted display device (14) disposed in a vehicle (1), comprising the steps of: receiving, by a computing device (13) comprising a processor (16), at least one first image (21) for displaying on the head-mounted display device (14), receiving, by the computing device (13), at least one sequence of second images (22) of an environment proximate the vehicle (1) captured with a panoramic vehicle camera (12) during motion of the vehicle, determining, by the computing device (13), at least one parameter which is indicative of at least one vehicle motion property, displaying during motion of the vehicle (1) and when the at least one parameter has a first value the at least one first image (21) and the at least one sequence of second images (22) simultaneously and superimposed on the head-mounted display device (14) such that the at least one sequence of second images (22) provides a peripheral optical flow of images to the user (5) when focusing on the at least one first image (21), and changing, by the computing device (13), at least one image property of the at least one sequence of second images (22) if the at least one parameter has a second value different from the first value. The invention also relates to a corresponding vehicle image displaying apparatus.