Image Display Device Shape Correction for Multi-Surface Corners
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing image display devices struggle to correct trapezoidal distortion when projecting images onto surfaces with corners composed of multiple surfaces, as simply moving the corner portions of the image is insufficient to address the distortion.
Innovation Solution
An image display device and method that includes an OSD display unit for showing identification images corresponding to the sides of the image, a selection unit for choosing the identification image, a moving operation unit for adjusting a node at a predetermined position, and an image correction unit that corrects the image shape based on user operations, allowing for proper shape correction on surfaces with multiple corners.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the corner portions of the image are moved to correct trapezoidal distortion, then the distortion correction is improved, but the shape correction on surfaces with corners composed of multiple surfaces cannot be properly achieved
Solution Approach 1:
The image correction function is segmented into two independent correction modes: trapezoidal distortion correction (moving corner portions) and shape correction (moving nodes on sides). This allows each correction type to be applied independently based on the projection surface characteristics, resolving the contradiction between distortion correction accuracy and adaptability to different surface types.
Solution Approach 2:
The system dynamically switches between different correction methods based on the projection surface type. When projecting onto surfaces with corners composed of multiple surfaces, the system activates the shape correction function that moves nodes on the sides rather than corner portions, enabling adaptive correction for different surface geometries.
2Ease of operation
If identification images corresponding to corner portions are displayed for user operation, then the operation interface is simplified, but the user cannot properly correct images on surfaces with multiple surface corners
Solution Approach 1:
The identification images are segmented into two types: corner portion identification images for trapezoidal distortion correction and side node identification images for shape correction. This segmentation allows the user interface to present the appropriate correction method based on the projection surface type, maintaining ease of operation while achieving accurate shape correction.
Solution Approach 2:
The identification images serve as intermediaries between the user and the complex correction operations. By displaying identification images corresponding to different correction points (corner portions vs. side nodes), the system guides users to perform the appropriate correction operation for the given projection surface type.
Data Source
AI summary
An image display device capable of performing a shape correction of an image displayed on an image display surface having a corner composed of a plurality of surfaces is provided. The image display device includes: an OSD processing unit that displays identification images respectively corresponding to four sides of an image; an identification image selection unit that accepts an operation of selecting the displayed identification image; a moving operation unit that accepts an operation of moving a node set at a predetermined position of the side corresponding to the selected identification image; and an image processing unit that corrects the shape of the image by moving, based on the operation accepted with the moving operation unit, the node of the side of the image displayed on an image display surface composed of a plurality of surfaces.