Non-Planar Projection for Dynamic Naked-Eye 3D Positioning
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Solution Overview
Problem
Current naked-eye 3D technologies face challenges such as high costs, fixed display ranges, image deformation without processing, and inability to dynamically adjust 3D image positions according to viewer's eyes, limiting their widespread adoption and effectiveness.
Innovation Solution
A projection system utilizing a non-planar projection surface, a projection apparatus, and a controller to project stereoscopic images without auxiliary devices, dynamically adjusting image positions based on viewer's eye positions, and enhancing contrast through ambient light control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If LED display devices are used to achieve naked-eye 3D effect, then stereoscopic image can be displayed, but the display range is fixed and cannot be adjusted according to field or application purpose
Solution Approach 1:
The patent employs dynamic image processing techniques where the projection system adjusts image parameters in real-time based on viewer position and environmental conditions. The controller dynamically modifies projection content to maintain optimal stereoscopic effect across different display ranges and application scenarios, transforming a static display system into a dynamic adaptive one.
Solution Approach 2:
The system changes key parameters such as image resolution, projection angle, and depth information based on the desired display range and application purpose. By adjusting these parameters dynamically, the system can adapt to various fields and applications without requiring hardware changes, resolving the contradiction between adaptability and device complexity.
2Manufacturing precision
If projector is used to project image with 3D object without image processing, then projection is simple, but the image will be deformed and there will be no stereoscopic effect
Solution Approach 1:
The system performs preliminary image processing before projection, pre-calculating the necessary distortion corrections and stereoscopic effects. The controller prepares processed image data in advance based on the 3D object information and projection parameters, ensuring that when the image is projected, it appears correctly formed and stereoscopic without requiring complex real-time processing during projection.
Solution Approach 2:
The patent introduces an intermediary processing layer between the 3D object data and the projection output. This intermediary image processing module acts as a mediator that transforms raw 3D object information into properly formatted projection images, handling the complexity of distortion correction and stereoscopic effect generation centrally rather than at the projection hardware level.
3Adaptability or versatility
If fixed display range is used, then device structure is simple, but the display device cannot dynamically adjust the position of the 3D image according to the position of the human eye
Solution Approach 1:
The system incorporates feedback mechanisms where viewer position information is detected and fed back to the controller. Based on this feedback, the controller dynamically adjusts the image position and projection parameters to maintain optimal viewing experience. This closed-loop feedback system enables adaptive image positioning without requiring complex mechanical adjustments, resolving the contradiction between adaptability and structural complexity.
Data Source
AI summary
A projection system including a non-planar projection surface, a projection apparatus and a controller is provided. The controller is communicatively connected to the projection apparatus. The controller provides stereoscopic image information and transmits the stereoscopic image information to the projection apparatus. The projection apparatus projects an image beam onto the non-planar projection surface according to the stereoscopic image information. A stereoscopic image is presented within a field of view of the image beam. A method of forming a stereoscopic image is also provided.