Projector Image Geometry Correction With 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 distortion correction, which are not easily recognizable by users.
Innovation Solution
A control method and electronic device that prompts users to capture multiple images of a projected adjustment pattern through display prompts and camera usage, enhancing geometric correction accuracy by ensuring images are captured from varied angles and positions.
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 awareness and recognition of this requirement deteriorates
Solution Approach 1:
The system displays prompt images on the display device that provide visual feedback to the user, indicating that multiple captured images are needed for accurate distortion correction. This feedback mechanism informs users of the requirement while guiding them to capture multiple images from different angles, thereby maintaining correction accuracy without losing user awareness.
Solution Approach 2:
The prompt image acts as an intermediary between the system's requirement for multiple images and the user's understanding. The prompt image visually communicates the need for multiple captures, bridging the gap between technical requirements and user comprehension, ensuring users recognize the importance of capturing multiple images for accurate correction.
2Measurement precision
If multiple captured images are acquired from varied angles, then geometric correction accuracy is improved, but operation complexity increases
Solution Approach 1:
The system displays prompt images beforehand that guide users on how to capture multiple images from varied angles. By providing these visual instructions in advance, users are prepared for the multi-step process, reducing the perceived complexity during actual operation while ensuring accurate geometric correction through properly captured images.
Solution Approach 2:
The prompt images provide real-time visual feedback to users during the image capture process, indicating whether the captured images meet the requirements for geometric correction. This feedback simplifies the operation by clearly guiding users on what to capture and from what angles, reducing operation complexity while maintaining high correction accuracy.
Data Source
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.