Foldable Display Face Detection Posture Switching
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Face detection systems in foldable display devices often malfunction due to incorrect posture detection, leading to false user presence or absence detection, especially when the device is used in various orientations or folded states.
Innovation Solution
An information processing apparatus with a foldable display, an imaging unit, a posture sensor, and multiple processors that switch between face detection enabled and disabled modes based on the device's posture, ensuring accurate user presence detection by adjusting the operating state accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If face detection is used to control operating state, then user presence detection accuracy is improved, but false detection occurs when device posture varies
Solution Approach 1:
The system dynamically switches between face detection mode and other detection modes based on the detected posture of the information processing apparatus. When the display is in a predetermined orientation (e.g., vertical orientation suitable for face detection), the system enables face detection. When the display orientation changes (e.g., horizontal orientation), the system switches to alternative detection methods, ensuring reliable operation across diverse usage scenarios.
Solution Approach 2:
The system changes the detection parameters and methods based on the display orientation parameter. By detecting the posture of the apparatus and determining the display orientation, the system adjusts which detection algorithm to use - switching between face detection (when orientation is suitable) and other detection methods (when orientation is unsuitable), thereby maintaining detection reliability across different postures.
2Ease of operation
If the camera is positioned on the display surface side, then face detection is enabled in standard position, but detection fails when display orientation changes
Solution Approach 1:
The system dynamically adjusts the detection strategy based on real-time posture detection. When the display is in an orientation where the camera can capture the user's face (e.g., vertical orientation), face detection is activated. When the display orientation changes to positions where face detection would fail (e g, horizontal orientation), the system automatically switches to alternative detection methods, ensuring continuous adaptability to various usage forms.
Solution Approach 2:
The system implements multiple detection functions to handle different usage scenarios. Instead of relying solely on face detection, the system incorporates alternative detection methods that can operate effectively when the display is in orientations unsuitable for face detection. This multi-functional approach ensures the system remains versatile and adaptable across all possible display orientations and usage forms.
3Device complexity
If face detection is always enabled, then user detection is simplified, but power consumption increases and false detection occurs
Solution Approach 1:
The system dynamically controls the activation of face detection based on current display orientation. Face detection is enabled only when the display is in a predetermined orientation suitable for this method, and disabled or switched to alternative methods when orientation is unsuitable. This dynamic control reduces unnecessary power consumption while maintaining effective user detection across different usage scenarios.
Solution Approach 2:
The system changes the detection parameter set based on display orientation. By monitoring the posture parameter and determining whether the current orientation is suitable for face detection, the system selectively activates or deactivates the face detection function, thereby optimizing power consumption while maintaining detection effectiveness across various orientations.
Data Source
AI summary
An information processing apparatus includes a foldable display; a camera which captures a direction to face at least part of the display surface; a sensor for detecting the posture of the information processing apparatus; a first processor which controls the operation of the system; a second processor which detects a face area from an image captured by the camera; and a third processor which processes while switching, based on the posture, between first processing to output first information when the face area is detected by the second processor, or output second information when the face area is not detected, and second processing to output either one of the first information and the second information regardless of the detection of the face area by the second processor. The operation of the system is controlled based on the first processing and the second processing.