Projector Image Correction via Emphasized Line Segments
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Solution Overview
Problem
Existing projector systems struggle to intuitively correct image distortions when shifted from an ideal positional relationship with a screen or projected onto nonplanar surfaces, as users find it difficult to understand how to correct distortions using existing methods.
Innovation Solution
An image processing device and method that selects a first correction point, identifies adjacent points, and emphasizes line segments connecting these points to facilitate intuitive distortion correction by varying line segment appearance, allowing users to correct distortions without directly indicating correction points.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a handle is displayed at the correction point to indicate the position, then the correction point position is clearly indicated, but the user fails to get the idea of the image with the distortion corrected and cannot intuitively perform the correction operation
Solution Approach 1:
The patent applies color changes and visual emphasis to line segments connecting correction points. When a correction point is selected, the line segments connected to it are emphasized through color changes, width changes, or blinking effects. This allows users to intuitively understand which areas will be affected by correction operations without directly indicating the correction points themselves, resolving the contradiction between precise point indication and intuitive operation.
Solution Approach 2:
The patent introduces line segments as intermediary visual elements between the correction points and the user. Instead of directly displaying and manipulating correction points, the system uses line segments connecting these points as mediators to convey spatial relationships and correction effects. This intermediary approach enables intuitive understanding of distortion correction while maintaining precise correction point positioning.
2Adaptability or versatility
If the first correction point moves along a plurality of axes, then the correction can cover more areas, but it becomes difficult to provide clear visual feedback for directional movement
Solution Approach 1:
The patent applies asymmetry by providing different visual emphasis to different line segments based on their orientation and the direction of correction point movement. When a correction point moves along multiple axes, the line segments are emphasized differently according to their spatial relationships, creating asymmetric visual feedback that clearly indicates the direction and nature of movement while maintaining versatile correction capability.
3Manufacturing precision
If the user can look at the corrected image during operation, then the correction accuracy improves, but the system complexity increases due to real-time processing requirements
Solution Approach 1:
The patent implements partial action by displaying only the correcting image without necessarily requiring full real-time processing of the complete corrected image. The system emphasizes line segments and displays correction information progressively as users interact with correction points, rather than requiring complete real-time regeneration of the entire corrected image. This reduces system complexity while maintaining sufficient correction accuracy.
Data Source
AI summary
An image processing device includes a selection section adapted to select a first correction point among a plurality of correction points included in a correcting image, an identification section adapted to identify a second correction point and a third correction point adjacent to the first correction point, and a display control section adapted to emphasize a first line segment connecting the first correction point and the second correction point to each other, and a second line segment connecting the first correction point and the third correction point to each other, and display the correcting image on a display section.