Motion-Based User Verification on Mobile Devices
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Solution Overview
Problem
Traditional human verification methods, such as CAPTCHA images, are ineffective on small devices like cellular phones and wearables, causing user frustration and authentication challenges due to difficulty in image interpretation and text-based input on small screens.
Innovation Solution
Implementing motion-based verification protocols that instruct users to perform specific physical movements detected by sensors on their devices, allowing verification without requiring image interpretation or text input, using modules like instruction, receiving, determination, and verification modules.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional image-based verification protocols (CAPTCHA) are implemented, then verification security is improved, but user operation difficulty increases and device compatibility deteriorates on small screens
Solution Approach 1:
The patent replaces the visual-mechanical system of CAPTCHA image recognition with a motion-based verification system using device sensors (accelerometer, gyroscope, magnetometer). Instead of requiring users to interpret images and input text, the system captures three-dimensional motion data from the device itself, substituting visual processing with mechanical motion detection that works equally well on all device sizes.
2Measurement precision
If text-based authentication protocols are used, then verification accuracy is improved, but usability deteriorates on devices without keyboards
Solution Approach 1:
The motion-based verification system leverages the device's own built-in sensors (accelerometer, gyroscope, magnetometer) to perform verification without requiring external input devices like keyboards. The device serves itself by using its inherent motion-capturing capabilities to authenticate the user, eliminating the need for text input while maintaining verification accuracy through precise motion pattern recognition.
3Adaptability or versatility
If image display protocols are used for verification, then verification capability is improved, but adaptability to small devices deteriorates
Solution Approach 1:
The patent transitions from two-dimensional image display verification to three-dimensional motion-based verification. By utilizing spatial motion data from multiple sensors (accelerometer for linear acceleration, gyroscope for rotational motion, magnetometer for orientation), the system creates a volumetric verification space that is not constrained by screen area, making it equally adaptable to devices of any size.
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
Enhances user verification on small devices by leveraging motion sensors to authenticate users based on physical actions, improving usability and effectiveness in preventing automated attacks by ensuring human interaction.
Implementation Method 1
receiving information, collected by one or more sensors associated with the mobile device, describing physical movement performed by the user
Data Source
AI summary
The disclosed computer-implemented method for verifying users based on user motion may include (1) instructing a user of a mobile device to physically move in a prescribed manner, (2) receiving information, collected by one or more sensors associated with the mobile device, describing physical movement performed by the user after the user receives the instruction, (3) determining, upon receiving the information, that the user's physical movement matches the prescribed movement, and (4) verifying the user in response to determining that the user's physical movement matches the prescribed movement. Various other methods, systems, and computer-readable media are also disclosed.