Projector Geometric Correction Using Guided Multi-Image Capture
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Solution Overview
Problem
Existing image display systems face challenges in accurately correcting distortions on non-flat projection surfaces due to difficulties in capturing multiple images for precise distortion correction, which is often unclear to users.
Innovation Solution
A control method and electronic device that prompts users to capture multiple images of a projected adjustment pattern through display prompts, ensuring accurate geometric correction by displaying guide images and determining image quality, thereby improving distortion correction accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple captured images are acquired for distortion correction, then correction accuracy is improved, but user understanding and operation complexity increase
Solution Approach 1:
The system provides real-time feedback to the user by displaying the number of captured images and their quality assessment results. This feedback mechanism guides users to capture additional images if needed, ensuring sufficient data for accurate distortion correction without overwhelming the user with complex manual operations.
Solution Approach 2:
The system automatically determines image quality and decides whether additional captures are needed. The quality assessment algorithm evaluates captured images and autonomously determines if more images are required for accurate distortion correction, reducing the burden on users to manually control the capture process.
2Measurement precision
If multiple captured images are required for accurate correction, then measurement precision improves, but device complexity increases
Solution Approach 1:
The system incorporates an automatic quality assessment mechanism that evaluates captured images and determines whether additional images are needed. This self-service approach allows the system to autonomously manage the complexity of acquiring multiple images, reducing the operational burden on users while maintaining high measurement precision.
Data Source
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AI summary
An electronic device that communicates with a projector projecting a projection image onto a projection target includes a camera, a display, and a processing device. The processing device causes the processing device displays, on the display, at least one prompt image for prompting a user to acquire a plurality of the captured images of a first adjustment pattern by using the camera. The first adjustment pattern is a pattern projected from the projector and that is for adjusting an outer shape of the projection image toward the projection target.