Projector Image Correction for Flexible Screens
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Solution Overview
Problem
Existing display methods struggle to maintain image clarity when projected onto non-flat surfaces, such as cloth or synthetic resin screens, which can distort due to external factors like wind, leading to inconsistent visual effects.
Innovation Solution
A projector system that differentiates between two image portions, with the first portion undergoing correction to maintain its shape when the screen changes, while the second portion remains uncorrected, using an optical device and control device to adjust the projected image based on captured image data and shape information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If correction is performed on the entire image to maintain shape when the screen changes, then the first portion maintains its intended shape, but the second portion loses its natural adaptation to the changing screen conditions
Solution Approach 1:
The image is divided into two distinct portions: a first portion that undergoes shape correction to maintain its intended geometry, and a second portion that remains uncorrected to naturally adapt to screen changes. This segmentation allows different processing strategies to be applied to different regions of the same image.
Solution Approach 2:
Different quality characteristics are applied to different portions of the image. The first portion receives correction processing to maintain its shape integrity, while the second portion is left uncorrected to preserve its natural adaptability to changing screen conditions. This local differentiation resolves the contradiction by allowing each portion to optimize for its specific requirement.
2Stability of the object's composition
If correction is performed on the image to maintain shape stability, then the projected image maintains its intended shape, but the visual effect is reduced when the screen naturally changes
Solution Approach 1:
The image is segmented into corrected and uncorrected portions, allowing the system to simultaneously achieve shape stability in the first portion and natural visual effects in the second portion. This segmentation enables both stability and visual appeal without compromise.
Solution Approach 2:
Different quality characteristics are applied locally: the first portion maintains stable shape through correction, while the second portion allows natural screen changes to create visual effects. This local differentiation resolves the contradiction between stability and visual effect creation.
3Adaptability or versatility
If no correction is performed on the image, then the second portion naturally adapts to changing screen conditions, but the first portion loses its intended shape and clarity
Solution Approach 1:
The image is divided into two portions with different processing: the first portion receives correction to maintain its shape, while the second portion remains uncorrected to adapt naturally to screen changes. This segmentation allows both shape integrity and natural adaptation to coexist.
Solution Approach 2:
Different quality characteristics are applied to different portions: the first portion maintains corrected shape quality, while the second portion maintains natural adaptation quality. This local differentiation resolves the contradiction by allowing each portion to optimize for its specific requirement.
4Manufacturing precision
If correction is applied to the entire image, then image clarity is maintained, but the complexity of the processing system increases
Solution Approach 1:
The image processing is segmented into two paths: correction processing for the first portion and no processing for the second portion. This segmentation reduces overall processing complexity compared to applying correction to the entire image, while still maintaining clarity where needed.
Solution Approach 2:
Correction processing is applied locally only to the first portion where shape maintenance is critical, rather than uniformly to the entire image. This local application reduces processing complexity while maintaining necessary image clarity in the critical first portion.
Data Source
AI summary
A display method includes displaying a first image containing a first portion and a second portion different from the first portion on a screen by a projector, storing information representing a first shape which is a shape of the first portion when the screen is seen from a first direction, and, when the shape of the first portion as seen from the first direction changes to a shape different from the first shape, displaying, by the projector, a second image obtained by performing correction on the first image to make the shape of the first portion as seen from the first direction closer to the first shape, and not performing the correction on the second portion on the screen.