Splicing Screen Offset Compensation for Multi-Screen Display Alignment
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Solution Overview
Problem
Multi-screen display systems face challenges in aligning images across physically spliced screens, especially when displaying high-speed motion images, due to splice errors, which affect the display effect.
Innovation Solution
A method to determine the vertical and horizontal offset distances of each splicing screen by analyzing feature points in a preset image, using a reference screen to calculate pixel offsets, and adjusting data signals to correct image alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If multiple display screens are physically spliced to form a multi-screen display system, then the display area is increased, but image alignment accuracy deteriorates due to splice errors
Solution Approach 1:
The patent applies preliminary action by pre-calculating and storing offset distance compensation values for each splicing screen before actual image display. The control apparatus determines offset distances between adjacent splicing screens in advance, stores these values, and automatically applies compensation when images are displayed, eliminating the need for manual real-time adjustment and ensuring consistent image alignment across the multi-screen system.
2Manufacturing precision
If offset compensation is applied to correct image alignment, then image alignment accuracy is improved, but system complexity increases due to additional control operations
Solution Approach 1:
The patent implements self-service by enabling the control apparatus to automatically determine, store, and apply offset compensation values without requiring manual intervention. The system self-calibrates by detecting the positions of splicing screens, calculating offset distances, and automatically adjusting image display parameters, thereby reducing operational complexity while maintaining high alignment accuracy.
3Measurement precision
If feature point analysis is used to determine offset distances, then measurement precision is improved, but detection difficulty increases due to image processing requirements
Solution Approach 1:
The patent applies the extraction principle by isolating and analyzing specific feature points from the images displayed on splicing screens. The control apparatus extracts key positional information from these feature points to determine offset distances, rather than processing entire images. This selective extraction approach maintains high measurement precision while significantly reducing the computational complexity and difficulty of the detection process.
Data Source
AI summary
Embodiments of the present disclosure relate to a method for determining an offset distance of a splicing screen in a multi-screen display system, a method for driving the multi-screen display system, and a related control apparatus. In the method for determining the offset distance of the splicing screen, a preset image is displayed in each of a plurality of splicing screens of the multi-screen display system. A feature point is determined in the preset image, and a position of the feature point of each splicing screen in the multi-screen display system is determined. Based on the positions of the feature points, at least one of a vertical offset distance and a horizontal offset distance of each splicing screen is determined.