Face Change Detection for Fast Private App Privacy Control
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Solution Overview
Problem
Existing face recognition methods for unlocking private applications on electronic devices are inefficient due to frequent authentication, reducing the speed of responding to user operations.
Innovation Solution
Implementing a low-power camera for continuous face change detection, allowing the device to determine if the face in front of the display matches a reference face, and adjusting content display or application access accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If traditional privacy protection methods are used, then privacy security is maintained, but the response speed to user operations is slow
Solution Approach 1:
The system performs face detection and identification before the user actually accesses private content. By detecting face changes in advance during the unlocking period and pre-determining whether to switch between private and non-private modes, the system eliminates the delay of real-time detection during content access, thus improving response speed while maintaining security.
Solution Approach 2:
The system continuously monitors face detection results and provides real-time feedback to control the display mode. When a face change is detected, the system immediately switches between private and non-private content display, creating a closed-loop control system that responds quickly to user operations while ensuring privacy protection.
2Measurement precision
If face detection is continuously performed, then privacy protection accuracy is improved, but energy consumption increases
Solution Approach 1:
Instead of continuous face detection, the system performs detection periodically at specific moments such as when the screen is unlocked or when content switching is needed. This periodic detection approach maintains adequate face detection accuracy for privacy protection while significantly reducing the energy consumption associated with constant detection operations.
Solution Approach 2:
The system performs face detection in advance during the unlocking period before private content is actually accessed. This preliminary detection ensures that by the time the user needs to access private content, the system has already determined the appropriate display mode, reducing the need for frequent subsequent detections and thereby lowering overall energy consumption.
Data Source
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AI summary
The present invention relates to the field of information security, and discloses a privacy protection method for an electronic device, an electronic device, a computer-readable storage medium, a computer program product, and a chip, to resolve a technical problem in the prior art that a speed of responding to a user operation by a privacy protection application is relatively low. The privacy protection method for the electronic device includes: starting face change detection, where the face change detection is continuously detecting, in a current unlocking period, whether a face in front of a display of the electronic device changes, and the change of the face in front of the display of the electronic device is specifically that the current face in front of the display of the electronic device does not match a reference face; after starting the face change detection, detecting an operation of starting a first private application; and in response to the operation and determining that a result of the face change detection is that the current face does not change, displaying first private content corresponding to the first private application; or in response to the operation and determining that a result of the face change detection is that the current face changes, displaying first non-private content, where the first non-private content does not include first private content.