Multi-Optical Machine CAVE Projection for 4K Resolution
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Solution Overview
Problem
Current CAVE projection systems are limited by the resolution of single optical machines, which restricts high-resolution multi-window content rendering and image quality, and existing fusion methods are not commercially viable due to hardware complexity and alignment issues.
Innovation Solution
A method and equipment for achieving short focal length circular-screen output using multiple optical machines, where the throw ratio is calculated and optimized to integrate multiple 2K optical machines for 4K resolution output, allowing for seamless image projection across multiple screens.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple optical machines are used to achieve ultra-high resolution output, then resolution is improved, but device complexity increases
Solution Approach 1:
The system divides the projection task into multiple segments, with each optical machine responsible for projecting a specific visual plane. Four optical machines work in parallel to achieve ultra-high resolution output by combining their individual 2K resolutions into a unified 4K projection, avoiding the need for a single complex 4K optical machine
Solution Approach 2:
Multiple optical machines are merged into a coordinated projection system where their projection surfaces are precisely aligned to form a unified visual output. The projection surfaces of multiple optical machines are positioned to overlap and fuse, creating a seamless ultra-high resolution image that combines the capabilities of all machines
2Length of moving object
If optical machines with short focal length are used, then projection distance is reduced, but hardware difficulty and price increase
Solution Approach 1:
Instead of using a single optical machine with short focal length, the system segments the projection function across multiple optical machines with normal focal lengths. Each machine projects to a specific visual plane at a reasonable distance, and the combined effect achieves the desired short projection distance without requiring specialized short-focal-length hardware
Solution Approach 2:
The system transitions from a single-point projection approach to a multi-point distributed projection approach. By arranging multiple optical machines and their corresponding visual planes in spatial distribution, the system achieves short effective projection distance through geometric arrangement rather than through optical lens design
3Stability of the object's composition
If optical machines are arranged in fixed positions, then projection stability is improved, but adaptability to different screen ratios decreases
Solution Approach 1:
The system incorporates adjustable parameters including throw ratio ranges and spatial position ranges for each optical machine. These dynamic parameters allow the projection system to adapt to different screen ratios and configurations while maintaining stable projection quality through controlled adjustments within defined ranges
Data Source
AI summary
The present invention provides a projection method, equipment and system for achieving short focal length circular-screen output based on multiple optical machines. The projection method includes: setting a plurality of optical machines corresponding to one visual plane; calculating a value range of a throw ratio of the optical machines corresponding to the visual plane according to a percentage of a fusing zone formed when projection of the optical machines intersects each other and is projected to the corresponding visual plane and an expected screen ratio; obtaining setting parameters of each optical machine based on the value range of the throw ratio of each optical machine; and obtaining a spatial position and a rotation angle range for when the optical machines are projecting based on the setting parameters of the optical machines and a projection area of an optical path coverage range of the optical machines on the corresponding visual plane.