Multi-Projection Image Mapping via Spherical Coordinate Transformation
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Solution Overview
Problem
Conventional methods fail to generate projection images for multi-projection theaters that consider the structural characteristics of each theater, as they are designed for single-screen setups and lack the ability to adapt to varied projection surface dispositions.
Innovation Solution
A method involving mapping a source image to a sphere and generating virtual planes based on the theater's structure, allowing the image to be projected onto multiple virtual planes, which are then optimized for the specific projection surfaces, using a reference point to ensure accurate perspective projection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional single-screen projection system is used, then the system complexity is low and ease of operation is maintained, but the adaptability to different theater structures is poor and the immersive experience is limited
Solution Approach 1:
The patent applies dimensionality change by mapping the 2D source image to a 3D spherical coordinate system. The sphere is divided into multiple regions corresponding to different projection surfaces, allowing the system to adapt to various theater structures by adjusting the regional division rather than changing the entire projection system. This resolves the contradiction by enabling structural adaptability while maintaining relatively simple projection hardware.
Solution Approach 2:
The patent creates a universal projection system that can handle multiple theater configurations through a unified spherical mapping approach. The same projection system can be adapted to different theater structures by redefining the regional divisions on the sphere, making the system multi-functional and highly adaptable without requiring separate systems for each theater type.
2Reliability
If multiple projection surfaces are disposed in various directions around stands, then the immersive experience and three-dimensional effect are improved, but the difficulty of generating projection images that consider structural characteristics increases
Solution Approach 1:
The patent introduces a spherical coordinate system as an intermediary between the source image and multiple projection surfaces. This intermediary provides a unified framework for calculating projection parameters for surfaces in various directions, simplifying the complex task of adapting images to different theater structures while maintaining high immersive experience quality.
3Productivity
If projection images are generated without considering theater structure, then the processing time and computational resources are reduced, but the viewing experience is degraded due to lack of optimization for specific projection surface dispositions
Solution Approach 1:
The patent performs preliminary action by pre-dividing the spherical coordinate system into multiple regions corresponding to different projection surfaces. This pre-structuring allows for efficient calculation of projection parameters during actual operation, maintaining high image generation efficiency while enabling precise optimization for specific theater configurations through the pre-established regional framework.
Data Source
AI summary
Disclosed herein is a method of generating images for a multi-projection theater and a method of generating projection images for a multi-projection theater, wherein a source image is mapped to a sphere, virtual planes according to the structure of a multi-projection theater are generated, and the source image on the sphere is projected on the virtual planes. The method may include mapping a source image to a sphere, generating a virtual plane according to the structure of a theater, and projecting the image on the sphere on the virtual plane.