Projection Control Device for Curved Surface Area Utilization
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Solution Overview
Problem
Existing projection technologies waste space when projecting images on curved surfaces due to inefficient area utilization, as they project images uniformly across the available area without optimizing for different content types and surface characteristics.
Innovation Solution
A projection control device and method that acquires the features of a projection surface, determines specific areas for projecting different types of images (main and secondary content) within the projection area, and controls the projection device to optimize image placement and size based on surface shape and color information, reducing wasted space by projecting images in non-overlapping areas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a projection image is corrected and output maintaining aspect ratio, then the projection image can be properly displayed on curved surfaces, but wasted space occurs within the projection area
Solution Approach 1:
The patent divides the projection area into multiple regions (first area and second area) and projects different images in each region. The first projection image is projected in the first area while the second projection image is projected in the second area, which is other than the first area. This segmentation allows full utilization of the projection area without wasting space, while maintaining proper correction accuracy for curved surfaces.
Solution Approach 2:
The patent applies different projection images to different areas of the projection surface based on their specific characteristics. By determining the correspondence between projection pixels and captured image pixels for each area, the system optimizes the projection quality locally in each region while maintaining overall aspect ratio and correction accuracy.
2Adaptability or versatility
If the projection image is reduced in size to fit the projection area, then the aspect ratio is maintained, but wasted space occurs where no projection image is projected
Solution Approach 1:
The patent segments the projection area into multiple regions and assigns different images to each region. This allows the system to maintain aspect ratio for each individual image while filling the entire projection area with content, eliminating wasted space and improving overall utilization efficiency.
Solution Approach 2:
The patent transitions from projecting a single large image to projecting multiple smaller images in different areas. By utilizing the spatial dimensionality of the projection surface and dividing it into multiple regions, the system achieves both aspect ratio maintenance and area utilization efficiency.
Data Source
AI summary
A projection control device includes a hardware processor. The hardware processor acquires a feature of a projection surface. The hardware processor determines a first area in which a first projection image corrected based on the acquired feature of the projection surface is projected and a second area that is other than the first area and in which a second projection image corrected based on the feature of the projection surface is projected, within a projection area projectable, by a projection device, on the projection surface. Then, the hardware processor controls the projection device to project the first projection image in the first area and project the second projection image in the second area.