Biometric Authentication Using Random Light Patterns
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Solution Overview
Problem
Electronic devices face security challenges in user authentication due to inability to differentiate between genuine and fake biometric information, particularly with fingerprint, iris, and facial recognition, as they cannot distinguish between 2D/3D printed images and actual user data.
Innovation Solution
The implementation of an electronic device with a lighting system that randomly emits light, synchronizing illumination patterns with image capture to enhance biometric authentication security, using a combination of flood lighting and structured lighting to obtain facial and depth images, and verify user authenticity through gaze vector matching.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional biometric sensors (fingerprint, iris, face) are used for authentication, then user authentication functionality is provided, but the system cannot differentiate between genuine and fake biometric information, resulting in poor security
Solution Approach 1:
The patent applies periodic action by using a light source that randomly emits light at unpredictable time intervals during the image capture process. This random illumination pattern creates temporal variability that makes it difficult for fake biometric data to be captured consistently, thereby enhancing the system's ability to distinguish between genuine and fraudulent authentication attempts while maintaining reliable authentication functionality.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach significantly increases the accuracy of biometric authentication by ensuring that only genuine user data is used for authentication, preventing unauthorized access and enhancing security against copied biometric information.
Implementation Method 1
a light source configured to randomly emit light
Data Source
Figure 1~2
Figure 3~4B
Figure 4C~5B
AI summary
Various embodiments of the disclosure relate to devices and methods for user authentication on an electronic device. The electronic device comprises a plurality of lighting devices, a camera, a display, and a processor. The processor is configured to display an object on the display, obtain, through the camera, a plurality of images based on an image obtaining pattern randomly generated, obtain biometric information using at least one of the plurality of images, obtain information about a variation in a user's gaze corresponding to a movement of the object displayed on the display using the plurality of images, and perform authentication on the user based on the biometric information and the user gaze variation information. Other embodiments are available as well.