Projector Guide Image for Distortion Correction Alignment
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Solution Overview
Problem
Projectors face challenges in maintaining a projection image within a defined area when distortion correction occurs, leading to parts of the image going out of the planned projection area, necessitating a method to adjust the image or projection area position easily.
Innovation Solution
A projector system that includes a projection unit, a distortion correction unit, and a projection control unit, which projects a guide image to help users adjust the image or projection area position, ensuring the image remains within the defined area during distortion correction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If distortion correction is applied to the projection image, then the distortion is corrected, but the projection image moves on the projection surface causing parts to go out of the planned projection area
Solution Approach 1:
The system performs preliminary actions by projecting a guide image before the actual projection, allowing users to adjust the projection area position in advance. This preliminary guidance enables users to anticipate and correct potential misalignment issues before they occur during actual projection, resolving the contradiction between distortion correction accuracy and projection area alignment.
2Manufacturing precision
If the projection image is corrected for distortion, then image quality improves, but user adjustment complexity increases
Solution Approach 1:
The guide image serves as an intermediary element between the distortion correction function and the user. Instead of directly presenting complex adjustment operations, the system introduces a visual guide that mediates the interaction, simplifying the user interface while maintaining image quality through distortion correction.
3Manufacturing precision
If distortion correction is performed, then the projection image becomes undistorted, but the position control becomes more difficult
Solution Approach 1:
The system implements feedback by projecting a guide image that shows the expected position and movement range of the projection image after distortion correction. This visual feedback allows users to verify the correction results and make precise adjustments to maintain position accuracy, resolving the contradiction between image quality and position control.
Data Source
AI summary
A projector includes: a projection unit projecting a projection image onto a projection surface where an object is located, the object defining a projection area where the projection image should be projected; a distortion correction unit correcting a distortion of the projection image; and a projection control unit causing the projection unit to project a guide image showing a range within which a predetermined site of the projection image can move according to the correction of the distortion, the projection control unit thus prompting a user to adjust a positional relation between the object and the range.