Imaging Device Timing Control for Authentication Accuracy
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Solution Overview
Problem
Existing imaging devices face challenges in simultaneously achieving automatic imaging and accurate personal authentication registration, as they often require different conditions for each function, leading to reduced convenience and accuracy in identifying individuals due to changes in facial features and lighting conditions.
Innovation Solution
An imaging device equipped with an imaging unit, search unit, authentication registration unit, and control unit that determines the timing for automatic authentication registration and imaging, using mechanisms like pan and tilt rotation units, gyro sensors, and accelerometers to adjust the angle of view and focus, while prioritizing personal authentication registration for improved accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If automatic imaging is performed based on general conditions, then imaging coverage is improved, but authentication accuracy deteriorates due to changes in facial features and lighting
Solution Approach 1:
The patent segments the imaging and authentication functions into separate processing flows. The authentication unit independently evaluates facial features and lighting conditions to determine authentication timing, while the imaging unit operates based on imaging conditions. This segmentation allows each function to optimize its own timing criteria without compromising the other, thereby maintaining authentication accuracy while preserving imaging coverage.
Solution Approach 2:
The patent performs preliminary authentication evaluation by continuously monitoring facial feature amounts and lighting conditions before actual authentication registration. The authentication unit pre-assesses whether conditions are suitable for authentication, and only when preliminary conditions are met does it proceed with authentication registration. This preliminary action ensures high authentication accuracy even when automatic imaging is occurring under varying conditions.
2Measurement precision
If separate control of imaging and authentication timing is implemented, then accuracy is improved, but device complexity increases
Solution Approach 1:
The patent merges the control logic for imaging and authentication into a single integrated control unit that manages both functions. While the authentication unit independently evaluates authentication conditions, the control unit coordinates between authentication registration timing and imaging timing based on their respective conditions. This merging approach maintains separate control capabilities for accuracy while avoiding the complexity of entirely independent control systems.
Solution Approach 2:
The control unit is designed with multi-functionality to handle both authentication timing determination and imaging timing determination. It universally manages different types of timing decisions by evaluating respective conditions for each function, thereby achieving separate control without requiring entirely separate control systems, thus limiting the increase in device complexity.
3Reliability
If authentication registration is prioritized, then authentication reliability is improved, but imaging opportunities are reduced
Solution Approach 1:
The patent implements dynamic timing adjustment where the authentication registration timing and imaging timing are flexibly coordinated based on real-time condition evaluation. When authentication conditions are favorable, authentication registration is prioritized; when imaging conditions are favorable, imaging is performed. This dynamic approach ensures authentication reliability while maximizing imaging opportunities by adapting to changing conditions rather than rigidly prioritizing one function.
Solution Approach 2:
The patent changes the timing parameters of authentication registration and imaging based on evaluated conditions. The authentication unit monitors facial feature amounts and lighting to dynamically adjust authentication timing parameters, while the imaging unit adjusts imaging timing based on imaging conditions. This parameter change approach allows the system to maintain authentication reliability by adjusting timing parameters without permanently reducing imaging frequency.
Data Source
AI summary
An imaging device is capable of performing automatic imaging and automatic authentication registration of a subject. The imaging device includes a drive unit that rotationally moves a lens barrel in a panning direction and a tilting direction, and can change an imaging direction under the control of the drive unit. The imaging device can perform automatic authentication registration of searching for a subject detected in captured image data and authenticating and storing the subject. A first control unit of the imaging device performs determination of whether or not a condition for performing the automatic authentication registration is satisfied and determination of whether or not a condition for performing the automatic imaging is satisfied. The first control unit executes an automatic authentication registration determination process and an automatic imaging determination process while performing search used for the automatic imaging, and determines a timing of performing the automatic authentication registration on the basis of a determination result.