Projector Shape Correction Without Luminance Delay
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Solution Overview
Problem
Existing projection methods that adjust projection images from multiple projectors require significant processing time due to the need for luminance correction, such as edge blend, which impairs user convenience by increasing the time before adjusted images are projected.
Innovation Solution
A method where the shape correction of a projection image is updated based on user operations without correcting the luminance of overlapping areas, allowing for immediate projection of images with corrected shapes while maintaining uncorrected luminance in overlapping regions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If luminance correction such as edge blend is executed, then the quality of projection images is improved, but the processing time increases
Solution Approach 1:
The patent segments the image processing into two independent parts: shape correction and luminance correction. By separating these processing tasks, the system can perform shape correction immediately without waiting for the computationally intensive luminance correction to complete, thus reducing overall processing time while maintaining image quality
Solution Approach 2:
The patent performs shape correction as a preliminary action before luminance correction. The shape-corrected image is projected immediately, and luminance correction is applied subsequently or in parallel, allowing the system to deliver corrected images faster while still applying quality improvements
2Manufacturing precision
If both shape correction and luminance correction are executed, then the quality of projection images is improved, but the processing time increases
Solution Approach 1:
The patent divides the correction process into separate shape correction and luminance correction modules that can operate independently or in parallel, preventing the need to wait for sequential completion of both processes
Solution Approach 2:
The patent allows shape correction to be applied immediately without waiting for luminance correction to complete. This partial action approach ensures that at least some correction (shape) is applied promptly, improving responsiveness while luminance correction enhances quality subsequently
Data Source
AI summary
A projection method including: when executing a first adjustment including correction of a shape of a first projection image to be projected by a projector, updating a first setting value for correcting the shape of the first projection image by receiving an operation of changing the shape of the first projection image; and projecting, from the projector, a third projection image in which the shape of the first projection image is corrected based on the first setting value and a luminance of an overlapping area in the first projection image is not corrected, the overlapping area being an area where a second projection image projected by another projector different from the projector and the first projection image overlap with each other.