Screen Display Mode Determination via Eye Connection Line Angle
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Solution Overview
Problem
Existing methods for determining the display mode of a smartphone, relying solely on gravity sensing chips, are inaccurate in scenarios where the user is not in a standard upright or horizontal position, leading to inconvenient display mode settings.
Innovation Solution
A method using image recognition technology to identify the connection line between a user's eyes in profile picture information, calculate the included angle with a reference line, and average these angles to determine the optimal display mode, thereby improving accuracy and user convenience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If gravity sensing chip is used to determine display mode, then the device structure is simple, but the determination accuracy deteriorates when user is not in standard position
Solution Approach 1:
The patent introduces an intermediary coordinate transformation system that bridges the gravity sensing data and the display mode determination. By establishing a relationship between the gravity sensor coordinate system and the screen coordinate system through rotation matrices, the system can accurately determine display mode even when the device is held in non-standard positions, thus resolving the contradiction between simple structure and high accuracy.
2Ease of manufacture
If gravity sensing chip is used to determine display mode, then the implementation is simple, but the reliability deteriorates in non-standard user positions
Solution Approach 1:
The patent changes the parameter representation by introducing rotation matrices (R1, R2, R3) that transform gravity sensing parameters into screen coordinate parameters. This parameter transformation allows the system to reliably determine display mode across various device orientations and user positions while maintaining implementation feasibility through systematic mathematical transformations.
3Measurement precision
If image recognition technology is used to identify connection line between eyes, then the display mode determination accuracy is improved, but the device complexity increases
Solution Approach 1:
The patent replaces the need for complex mechanical or hardware solutions with an image recognition-based approach. By using the camera to capture user profile images and identifying the connection line between eyes through image processing algorithms, the system achieves high determination accuracy without adding complex physical structures to the device.
Data Source
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AI summary
Embodiments of the present invention provide a method for determining a display mode of a screen and a terminal device. The method includes: determining a connection line between two eyes in each piece of profile picture information by identifying profile picture information of each viewer of at least two viewers, and determining a positive direction of each connection line according to the connection line between the two eyes in each piece of profile picture information and a preset positive direction determining rule; when the positive directions of all the connection lines are the same, calculating an included angle between the positive direction of each connection line and a positive direction of a reference line, and performing averaging on all the included angles to obtain a first included angle; and determining a display mode of a screen according to the first included angle. According to the technical solutions of the present invention, accuracy of determining a display mode of a screen can be improved, thereby improving use convenience for a user.