Variable Disparity 3D Display Motion Sickness Reduction
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Solution Overview
Problem
Viewers experience motion sickness when watching 3D videos, particularly during travel, due to excessive disparity between left-eye and right-eye images, which existing technologies fail to adequately address.
Innovation Solution
A variable disparity 3D display system that includes a motion detector and image processor to adjust the disparity amount of 3D images based on detected motion, reducing motion sickness by incrementally modifying the disparity between left-eye and right-eye images from 1 to 0, preserving some 3D effect while minimizing discomfort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional 3D display is used, then 3D viewing experience is provided, but motion sickness occurs due to excessive disparity
Solution Approach 1:
The patent applies dynamics by making the disparity amount adjustable and variable rather than fixed. The system dynamically modifies the disparity between left-eye and right-eye images based on detected motion characteristics, transitioning from a static 3D display to an adaptive one that responds to viewer motion state to reduce motion sickness while preserving 3D experience.
Solution Approach 2:
The patent changes the disparity parameter of the 3D image based on motion detection. When motion is detected, the system adjusts the disparity amount from its original value to a reduced value, thereby modifying the visual parameters of the 3D display to alleviate motion sickness symptoms while maintaining acceptable 3D viewing quality.
2Object-affected harmful factors
If disparity amount is reduced to minimize motion sickness, then motion sickness is reduced, but 3D effect is weakened
Solution Approach 1:
The patent applies partial action by reducing the disparity amount only partially rather than completely eliminating it. The system adjusts the disparity to a reduced value that is sufficient to minimize motion sickness but maintains enough 3D effect for acceptable viewing experience, avoiding the extreme of complete disparity elimination.
Solution Approach 2:
The system dynamically adjusts the disparity parameter based on motion detection, allowing the 3D effect to be preserved when motion is minimal while reducing disparity when motion is detected. This dynamic adjustment ensures that the 3D effect is maintained only when necessary for viewing comfort.
3Object-affected harmful factors
If disparity amount is adjusted dynamically, then motion sickness is reduced, but system complexity increases
Solution Approach 1:
The patent applies universality by integrating the motion detection and disparity adjustment functions into an existing 3D display system. The motion detector and image processor work together to automatically adjust disparity without requiring separate complex systems, thereby reducing overall system complexity while achieving motion sickness reduction.
Solution Approach 2:
The system uses feedback from motion detection to automatically adjust the disparity parameter. The motion detector provides real-time information about viewer motion, and the image processor uses this feedback to dynamically modify the 3D image disparity, creating a closed-loop control system that simplifies the overall architecture compared to manual adjustment methods.
Data Source
AI summary
A variable disparity three-dimensional (3D) display system and method of processing a variable disparity three-dimensional (3D) image shown on a display to reduce motion sickness of a person viewing the display. The system includes a motion detector configured to determine a motion value that characterizes motion of a display, and an image processor configured to adjust incrementally a disparity amount of a 3D image shown by the display based on the motion value in order to reduce motion sickness of a person viewing the display. The method includes determining a motion value that characterizes motion of a display, and adjusting a disparity amount of a 3D image shown by the display incrementally based on the motion value in order to reduce motion sickness of a person viewing the display.