Display Perspective Correction via Sensor-Based Orientation Adjustment
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Solution Overview
Problem
Current display technologies fail to automatically correct for perspective distortion caused by non-normal viewing angles, particularly in portable devices and environments where manual adjustment is impractical or impossible, leading to suboptimal viewing experiences.
Innovation Solution
The system uses sensors to detect changes in screen orientation relative to the user and applies correction factors to the displayed information, such as adjusting size and shape, to mitigate perspective distortion by calculating and applying scaling factors based on measured parameters like distance and gaze angle, ensuring a consistent view regardless of the viewing angle.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual adjustment of display orientation is allowed, then viewing comfort can be improved, but device complexity and ease of operation deteriorate in portable environments
Solution Approach 1:
The display system automatically detects viewing angle through sensors (accelerometer, gyroscope, camera) and applies perspective correction without requiring manual user intervention. The system serves itself by autonomously adjusting display parameters based on detected orientation, eliminating the need for complex manual adjustment mechanisms while maintaining viewing comfort.
Solution Approach 2:
The system changes display parameters (scaling factors, perspective transformation matrices) dynamically based on detected viewing angle. By modifying these parameters in real-time according to sensor data, the system corrects perspective distortion automatically, improving viewing comfort without adding mechanical complexity.
2Device complexity
If display orientation is fixed, then device simplicity is maintained, but perspective distortion increases in non-normal viewing angles
Solution Approach 1:
The display system transitions from a fixed orientation to a dynamic adjustment capability. Sensors continuously monitor viewing angle, and the system dynamically modifies display parameters (scaling, perspective transformation) to compensate for distortion. This dynamic approach maintains simplicity while eliminating perspective distortion across various viewing angles.
Solution Approach 2:
The system implements feedback by using sensors to detect actual viewing angle and comparing it against the desired normal viewing angle. Based on this feedback, the system calculates correction factors and applies them to the displayed content, automatically compensating for perspective distortion without requiring complex mechanical adjustments.
3Object-affected harmful factors
If automatic correction is implemented, then viewing quality improves, but computational requirements and processing time increase
Solution Approach 1:
The system performs preliminary calculations of correction factors and transformation matrices based on detected viewing angle before applying them to the display content. By pre-computing these correction parameters and using efficient rendering techniques, the system minimizes real-time processing requirements while maintaining high viewing quality across different angles.
Data Source
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AI summary
Described herein is a mechanism for automatically correcting perspective of displayed information based on the orientation of the display device. A user can identify a screen orientation where the displayed information does not need perspective correction. The system can monitor changes to the display orientation, and when the orientation changes, the system can measure the distance to a user's eye or calculate the distance based on measured data. Based on the distance, a correction factor can be calculated. An area in the display where corrected information will be displayed is identified. The currently displayed information is corrected based on the correction factor and displayed in the identified display area.