Gate Face Authentication Using Distance-Based Sequence Matching
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Solution Overview
Problem
Existing walk-through face authentication systems struggle with determining the sequence of individuals passing through a gate, leading to difficulties in smoothly allowing access.
Innovation Solution
An information processing device that extracts feature values from captured images, estimates distances to individuals, and executes matching determinations based on these values to control gate access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If face authentication is performed for persons in a line at the gate, then security matching accuracy is improved, but determining the correct passage sequence becomes difficult
Solution Approach 1:
The patent introduces distance information as a new dimension beyond traditional face matching. By estimating the distance from the gate to each person and using it as additional matching criteria, the system resolves the contradiction between accurate face authentication and correct sequence determination. The distance parameter provides spatial context that enables proper sequence identification while maintaining security standards.
2Ease of operation
If distance estimation is added to the authentication system, then sequence determination is improved, but system complexity increases
Solution Approach 1:
The patent uses distance estimation as an intermediary parameter that bridges face recognition and sequence determination. Rather than directly complexifying the authentication system, it introduces distance as a mediating factor that works together with face matching information to achieve accurate sequence determination, thereby managing system complexity through functional decomposition.
3Measurement precision
If matching determination is based on both distance and feature values, then passage control accuracy is improved, but processing time increases
Solution Approach 1:
The patent performs distance estimation and feature extraction in advance as preliminary actions before the final matching determination. By preparing distance information and feature values beforehand, the system reduces the computational burden during the critical passage control moment, thereby improving accuracy without excessive processing delays.
Data Source
AI summary
An information processing device of the present invention includes: an image processing means that extracts a feature value of an object within a captured image obtained by capturing a pre-passing region of a gate, and stores matching information relating to matching of the object based on the feature value; a distance estimating means that estimates a distance from the gate to the object within the captured image; and a matching means that executes matching determination based on the estimated distance and the stored matching information of the object that the distance has been estimated.