Three-Dimensional Video Display With Observer-Aligned Backgrounds
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Solution Overview
Problem
Conventional stereoscopic video display devices project a video that changes with the observer's position, but the background image remains static, leading to a mismatched visual experience.
Innovation Solution
A stereoscopic video display device that includes an image display unit, observer position detection, a rendering unit to form a virtual object image, a rotation unit to face the observer, a background image obtainment unit, and an image composition processing unit to superimpose the virtual object on the background, ensuring a cohesive visual experience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the video on the screen is changed according to the observer's position, then the observer can see a stereoscopic video over a range of 360 degrees, but the background image does not change, causing a visual mismatch
Solution Approach 1:
The patent applies dynamics by making the background image change dynamically according to the observer's position. The background image is rotated together with the screen when the observer moves, ensuring that both the video content and background adapt to the observer's position. This resolves the contradiction by making the system adaptable (360-degree viewing) while maintaining visual consistency (matching background and video changes).
Solution Approach 2:
The patent merges the background image with the video content by rotating them together as a unified visual system. When the screen rotates to face the observer at different positions, the background image is simultaneously rotated to maintain proper alignment. This combining approach ensures that the background and video change together, eliminating the visual mismatch while preserving 360-degree stereoscopic display capability.
2Ease of operation
If the screen is rotated to face the observer at different positions, then the observer can view the stereoscopic video from around the device, but the background image remains static, making the displayed video look wrong
Solution Approach 1:
The system uses dynamics to make the background image rotate together with the screen in response to observer position changes. This dynamic adjustment ensures that the background remains visually reliable and consistent with the video content, even as the screen rotates to accommodate observers at different positions around the device.
Solution Approach 2:
The patent implements feedback by detecting the observer's position and using this information to control both the screen rotation and background image rotation. The position detection provides feedback that triggers coordinated changes in both the video display and background presentation, ensuring visual reliability while maintaining ease of viewing from multiple positions.
Data Source
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AI summary
Included are: an image display unit (12) configured to display an image; an observer position detection unit (32) configured to detect a position of a nearby observer; a rendering unit (33) configured to form an image of a virtual object corresponding to the position of the observer detected by the observer position detection unit (32); a rotation unit (14) configured to rotate the image display unit (12) to a position facing the observer detected by the observer position detection unit (32); a background image obtainment unit (15) configured to obtain an image of a background behind the image display unit (12); and an image composition processing unit (35) configured to generate a composite image in which the image of the virtual object formed by the rendering unit (33) is superimposed on the image of the background obtained by the background image obtainment unit (15) and display the composite image on the image display unit (12).