Face Detection Boot Control for Power Optimization
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Solution Overview
Problem
Information processing devices boot unnecessarily when an unauthorized user approaches, leading to inefficient power consumption and authentication failures.
Innovation Solution
The device includes a system that uses face detection to initiate booting from a standby state, followed by authentication processing to verify the user's authorization, and only proceeds with booting if the user is authorized, thereby preventing unnecessary system activation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If face detection is used to trigger system bootup from standby state, then system responsiveness to user approach is improved, but unnecessary power consumption occurs when unauthorized users approach
Solution Approach 1:
The system performs preliminary face detection in standby state to detect user approach before full bootup. When a face is detected, the system prepares authentication data and transitions to a lightweight authentication state rather than immediately booting the full system. This preliminary action allows the system to respond quickly to authorized users while avoiding unnecessary full system activation when no user is present or the user is unauthorized.
Solution Approach 2:
The system uses feedback from the authentication result to control whether full bootup occurs. After detecting a face and performing authentication processing, the system determines based on the authentication result whether to proceed with full system bootup. If authentication fails or no face is detected, the system remains in standby state, preventing unnecessary power consumption while maintaining responsiveness to legitimate users.
2Ease of operation
If face detection triggers automatic bootup, then user convenience is improved, but system security is compromised by allowing unauthorized access
Solution Approach 1:
The system performs preliminary authentication processing in a lightweight state before committing to full bootup. When a face is detected in standby state, the system extracts authentication data and verifies it against stored credentials without fully activating the system. This preliminary authentication action maintains user convenience by quickly verifying authorized users while preventing unauthorized access by keeping the system in a low-power state until authentication succeeds.
Solution Approach 2:
The system introduces an intermediary authentication state between standby and full operation. Rather than directly booting upon face detection, the system transitions to an intermediate authentication state where verification occurs. This intermediary step acts as a security gatekeeper, allowing convenient quick access for authorized users while blocking unauthorized users before they can trigger full system activation.
3Measurement precision
If the system boots on every face detection, then detection accuracy is充分利用, but unnecessary bootup operations occur for unauthorized users
Solution Approach 1:
The system uses feedback from authentication results to control system bootup behavior. High-accuracy face detection is maintained, but the authentication result feeds back into the decision-making process to determine whether full bootup should occur. This feedback mechanism ensures that detection accuracy is fully utilized for identifying authorized users while preventing wasteful bootup operations when detection identifies unauthorized users or no users.
Solution Approach 2:
The system performs partial bootup or authentication processing only when necessary. Instead of always booting the full system upon face detection, the system performs minimal authentication processing in standby state and only proceeds with full bootup when authentication succeeds. This partial action approach maintains high detection accuracy benefits while eliminating excessive bootup operations that waste system resources and time.
Data Source
Figure 1(A)~1(C)
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Figure 4
AI summary
An information processing device detects an area of a face image with a face captured therein from a captured image captured by an imaging unit, gives an instruction for bootup from a standby state based on the fact that the area of the face image is detected from a first captured image captured by the imaging unit in the standby state, boots a system based on the instruction, and after bootup of the system, executes authentication processing to authenticate whether or not it is an authorized user. Further, based on the face image detected from the first captured image in the standby state, and the authentication result of the authentication processing, the information processing device decides whether or not to give an instruction for bootup from the standby state when an area of a face image is next detected from the first captured image captured by the imaging unit in the standby state.