Multimodal Security Authentication with Infrared and Face Recognition
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Solution Overview
Problem
Conventional security authentication devices face challenges in accurately identifying users due to interference from environmental factors and long recognition times, leading to impaired detection response and potential erroneous judgments, especially in scenarios requiring immediate security measures like anti-kidnapping warnings.
Innovation Solution
A security authentication method and device that combines image and voice recognition, using facial expression, physiological skeleton, and voice print features to balance recognition speed and accuracy, and includes an abnormal state processing function to detect physical discomfort or hostage states, triggering appropriate actions such as door locking or system disabling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If face image information is used as the main recognition core to improve recognition accuracy, then recognition accuracy is improved, but recognition time increases and detection response capability is impaired
Solution Approach 1:
The patent segments the recognition process into two stages: first uses infrared light detection for quick preliminary identification, then uses face image recognition only when needed for confirmation. This segmentation allows the system to achieve high accuracy without always incurring the full time cost of detailed face analysis.
Solution Approach 2:
The patent applies partial action by using only the necessary level of recognition detail for each situation. Infrared detection provides sufficient information for most cases, avoiding the excessive time consumption of full face recognition while maintaining adequate accuracy.
2Speed
If infrared light is used to detect user approach to improve detection speed, then detection response capability is improved, but accuracy is compromised due to environmental interference
Solution Approach 1:
The patent merges infrared light detection with face image recognition into a multi-modal authentication system. The infrared component provides fast initial detection while the face recognition component compensates for environmental interference, achieving both speed and accuracy simultaneously.
Solution Approach 2:
The face recognition system acts as an intermediary verification layer that confirms the identity of users detected by infrared sensors. This intermediary step filters out false positives caused by environmental interference while maintaining the fast response initiated by infrared detection.
3Ease of operation
If conventional security authentication devices are used to maintain simple operation, then ease of operation is maintained, but abnormal state detection capability is insufficient
Solution Approach 1:
The patent implements multi-functionality by enabling the security device to perform both normal authentication operations and abnormal state detection using the same interface. The system universally handles multiple functions including face recognition, infrared detection, hostage detection, and emergency response without requiring separate operational procedures.
Data Source
AI summary
A security authentication method is provided. In a step (a), a to-be-recognized image information and a to-be-recognized voice information about a user are provided. Then, a step (b) is performed to identify and judge whether the to-be-recognized image information and the to-be-recognized voice information comply with a registered image information and a registered voice information, respectively. In a step (c), if the judging condition of the step (b) is satisfied, a security information prompt signal is generated. In a step (d), a to-be-recognized security information is provided by the user. Then, a step (e) is performed to identify and judge whether the to-be-recognized security information complies with an abnormal warning information. In a step (f), if the judging condition of the step (e) is satisfied, an abnormal state warning and processing process is performed.