Gate Apparatus Imaging Timing Control for Face Authentication
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Solution Overview
Problem
In high-traffic areas such as airports or customs, guiding individuals to stop for face authentication is time-consuming and increases congestion, making it difficult to maintain authentication accuracy when space is limited for guiding individuals through a gate system.
Innovation Solution
A gate apparatus with an imaging unit, acquisition unit, and control unit that detects the presence of individuals using sensors on the floor and controls imaging timing to capture suitable face images while individuals are walking, ensuring accurate authentication without the need for individuals to stop.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If individuals are guided to stop for face authentication, then authentication accuracy is improved, but processing time increases and congestion occurs
Solution Approach 1:
The system performs preliminary detection of the person's presence and position using detection units on the floor before initiating face image capture. This preliminary action allows the system to prepare and trigger the imaging unit at the optimal moment, enabling accurate face authentication without requiring the person to stop, thus resolving the contradiction between authentication accuracy and processing time
Solution Approach 2:
The system uses the person's own movement through the passage as the trigger for authentication. As the person naturally walks through and steps on the detection units, the system automatically initiates face image capture without requiring any additional action or stopping from the person, maintaining both accuracy and efficiency
2Measurement precision
If a long passage is provided for guiding individuals through the gate, then authentication accuracy is improved, but installation space increases
Solution Approach 1:
The system transitions from requiring a long passage in the horizontal dimension to using vertical stacking of detection units and multi-angle imaging. Detection units are arranged in multiple layers and angles within a compact space, allowing the system to track and capture face images of moving persons without requiring extensive horizontal installation space, thus resolving the contradiction between authentication accuracy and installation space
3Productivity
If face images are captured while individuals are walking, then processing time is reduced and congestion is decreased, but authentication accuracy may decrease
Solution Approach 1:
The system is designed to dynamically adapt to the person's movement state. Detection units continuously monitor the person's position and movement speed, and the imaging unit triggers capture at the optimal moment when the person is within the acceptable range. The system also dynamically adjusts imaging parameters and performs multiple captures if needed, ensuring high authentication accuracy even while the person is walking, thus resolving the contradiction between processing throughput and authentication accuracy
Data Source
AI summary
A gate apparatus (10) includes an imaging unit (102) that images a person passing through a passage leading to a gate, an acquisition unit (104) that acquires a detection result from a detection unit which is provided on a floor of the passage, and a control unit (106) that controls, by using the detection result acquired by the acquisition unit (104), imaging timing of an imaging unit (102).