Projector Control Point Visualization for Geometric Correction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing projector technologies do not allow users to accurately confirm the position of correction points before and after movement during geometric correction, limiting user convenience.
Innovation Solution
A method and system that displays a control point image representing multiple control points for shape correction, allowing users to visually track the movement of a control point from one position to another by showing a first image before movement and a second image after movement, with distinct display configurations to enhance visibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If only the current position of control points is displayed during geometric correction, then the display is simple, but the user cannot confirm the position of correction points before and after movement
Solution Approach 1:
The display is segmented into multiple visual elements: original control point markers, moved control point markers, and guideline lines. This segmentation allows simultaneous presentation of before-and-after positions without creating a single complex display structure, resolving the contradiction by dividing information into manageable visual components.
Solution Approach 2:
The system creates visual copies of control point markers at both their original and new positions. These copied markers allow users to see the movement trajectory and compare positions, preserving complete position information while maintaining display simplicity through repeated visual elements rather than complex structures.
2Ease of operation
If multiple control point positions are displayed simultaneously, then user convenience is improved, but the display becomes more complex
Solution Approach 1:
Different visual properties are applied to different control point markers based on their state: original markers have one appearance, moved markers have another appearance, and guideline lines connect them. This local differentiation allows users to easily distinguish between various elements, improving operational ease while managing display complexity through consistent visual language.
Solution Approach 2:
The system adds temporal dimension to the static display by showing both before and after positions simultaneously. This dimensional approach transforms the correction process from sequential (before→after) to parallel visualization, improving user understanding of movement without requiring complex temporal controls.
3Measurement precision
If the projector displays control point movement, then measurement precision is improved, but the system requires more complex processing
Solution Approach 1:
The projector system performs self-service by automatically calculating and displaying the movement of control points without requiring external measurement tools. The system processes its own projection image data to generate control point position information, achieving precise measurement while keeping the processing integrated within the existing projector architecture.
Solution Approach 2:
The system provides visual feedback by displaying guideline lines that connect original and moved control point positions. This feedback mechanism allows users to verify the accuracy of control point movement in real-time, improving measurement precision through continuous visual confirmation while using simple graphical elements rather than complex measurement algorithms.
Data Source
AI summary
A method of displaying an image includes displaying an initial pattern image representing two or more control points to be used for shape correction of a projection image of a projector, receiving a first operation of moving a first control point as one of the two or more control points from a first position to a second position, displaying a first image representing the first control point before the movement at the first position when the first operation is received, and displaying a second image representing the first control point after the movement at the second position when the first operation is received.