Tiled Projection System Asymmetric Overlap Adjustment
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Solution Overview
Problem
Existing projection systems with multiple projectors struggle to effectively adjust unevenness in overlapping areas, particularly noticeable in tiled images, due to limitations in luminance and color adjustments across overlapping regions.
Innovation Solution
The system arranges projectors such that overlapping areas differ in size, with the center area being larger than peripheral areas, and utilizes an image processor to determine optimal projector arrangements and generate correction data for precise luminance adjustment, ensuring uniformity and reducing noticeable unevenness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If uniform overlapping areas are used in tiled projection, then the adjustment process is simplified, but unevenness in noticeable positions cannot be precisely corrected
Solution Approach 1:
The patent applies local quality by making each overlapping area have different sizes according to its position in the tiled image. The center overlapping area is made larger than peripheral overlapping areas, allowing precise correction of unevenness in noticeable positions while maintaining simplicity in less noticeable areas.
Solution Approach 2:
The patent introduces asymmetry by deliberately creating different sizes for overlapping areas based on their positions. This asymmetric design allows the system to prioritize correction precision in center areas where unevenness is more noticeable, while using smaller overlapping areas at periphery where correction is less critical.
2Manufacturing precision
If larger overlapping areas are used, then unevenness correction precision is improved, but the adjustment complexity increases
Solution Approach 1:
The patent applies local quality by making each overlapping area have different sizes according to its position in the tiled image. The center overlapping area is made larger than peripheral overlapping areas, allowing precise correction of unevenness in noticeable positions while maintaining simplicity in less noticeable areas.
3Manufacturing precision
If different sized overlapping areas are implemented, then noticeable unevenness is reduced, but the projector arrangement complexity increases
Solution Approach 1:
The patent introduces asymmetry by deliberately creating different sizes for overlapping areas based on their positions. This asymmetric design allows the system to prioritize correction precision in center areas where unevenness is more noticeable, while using smaller overlapping areas at periphery where correction is less critical.
Solution Approach 2:
The patent changes the parameter of overlapping area size based on position. By adjusting the size parameter of each overlapping area (larger for center, smaller for periphery), the system optimizes luminance uniformity in noticeable positions while managing the complexity of projector arrangement.
Data Source
AI summary
A projection system includes three or more projectors. Each of the projectors includes a projection section that projects image light to form a projection image on a screen. The projectors are so arranged that the three or more projection images projected by the projectors form a tiled image. The projection image projected by any of the projectors and the projection image projected by an adjacent projector form an overlapping area where the projection images overlap with each other, and one of the overlapping areas differs from the other overlapping areas in terms of size.