Display Control System for Dynamic Stereoscopic and Planar Mode Switching
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Solution Overview
Problem
Existing display technologies struggle to dynamically adjust the stereoscopic effect in virtual environments, limiting the user's ability to seamlessly transition between stereoscopic and planar displays while maintaining a consistent and enhanced sense of depth.
Innovation Solution
A display control system that adjusts the angle of view and type of virtual cameras based on the degree of stereopsis, using perspective-projection virtual cameras for stereoscopic displays and orthogonal-projection virtual cameras for planar displays, allowing for smooth transitions and enhanced depth perception.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the distance between two virtual cameras is increased to enhance the stereoscopic effect, then the stereoscopic effect is improved, but the display cannot be smoothly switched to planar display
Solution Approach 1:
The patent applies dynamics by making the virtual camera configuration adjustable rather than fixed. The system dynamically changes the distance between virtual cameras and switches between perspective-projection and orthogonal-projection based on the desired display mode (stereoscopic or planar), allowing smooth transition between different display states while maintaining optimal stereoscopic effect when needed.
Solution Approach 2:
The patent changes key parameters including the distance between virtual cameras, the projection type (perspective vs orthogonal), and the angle of view. By adjusting these parameters based on the selected display mode, the system achieves both enhanced stereoscopic effect and smooth switching capability between stereoscopic and planar displays.
2Reliability
If perspective-projection virtual cameras are used to achieve realistic depth perception, then the sense of depth is improved, but the processing complexity increases
Solution Approach 1:
The system dynamically selects the appropriate projection type based on the display mode. Perspective-projection is used only when stereoscopic display is required to achieve realistic depth perception, while orthogonal-projection is used for planar display to reduce processing complexity. This dynamic switching optimizes the balance between depth perception quality and processing requirements.
Solution Approach 2:
The patent changes the projection parameter from perspective-projection to orthogonal-projection depending on the display mode. This parameter change allows the system to maintain high depth perception quality when needed while reducing processing complexity during planar display operations, effectively managing the trade-off between realism and computational load.
3Reliability
If the angle of view of virtual camera is adjusted to enhance stereoscopic effect, then the stereoscopic visibility is improved, but the image distortion increases
Solution Approach 1:
The patent adjusts the angle of view parameter of the virtual camera based on the selected display mode. When stereoscopic display is enabled, the angle of view is optimized to enhance stereoscopic visibility. When planar display is selected, the angle of view is adjusted to minimize image distortion. This dynamic parameter adjustment resolves the contradiction between stereoscopic visibility and image distortion.
Data Source
Figure 1
Figure 2A~2B
Figure 2C~2D
AI summary
If a stereoscopic display mode is selected, the angle of view of each of a pair of perspective-projection virtual cameras and a distance between the perspective-projection virtual cameras are determined based on an output signal from a 3D adjustment switch. Based on these perspective-projection virtual cameras, an image for right eye and an image for left eye are rendered, and a stereoscopically visible image is generated based on these images. If a planar display mode is selected, a single orthogonal-projection virtual camera is used to generate a planarly visible image.