Gesture-Based Image Authentication for Touchscreen Devices
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Solution Overview
Problem
Conventional user authentication methods on new-generation consumer electronic devices, such as touch-compatible devices and smartphones, are not always convenient due to the reliance on virtual keyboards and high-end user interfaces.
Innovation Solution
A device and method that authenticate users by displaying a set of images and receiving user input in the form of gestures and selections, modifying the images based on these gestures, and comparing them to pre-stored images to enable locking, unlocking, or launching device features and applications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If virtual keyboards and high-end user interfaces are used for user authentication, then input capability is provided, but convenience deteriorates
Solution Approach 1:
The patent replaces traditional mechanical keyboard input with gesture-based touch input. Users authenticate by performing gestures (swiping, tapping, drawing patterns) on the touchscreen surface rather than pressing physical keys. This substitution eliminates the need for virtual keyboards while maintaining input capability, directly resolving the contradiction between authentication convenience and interface complexity
Solution Approach 2:
The patent transitions from one-dimensional linear keyboard input to two-dimensional spatial gesture input. Instead of typing sequences along a linear keyboard layout, users interact with the entire touchscreen surface by drawing gestures, patterns, or selecting regions. This dimensional expansion provides more intuitive and convenient authentication while eliminating complex virtual keyboard interfaces
2Reliability
If image selection and gesture recognition are used for authentication, then security is improved, but operation complexity increases
Solution Approach 1:
The patent merges multiple authentication factors (image selection, gesture recognition, sequence validation) into a single unified interaction. Instead of requiring separate steps for each authentication factor, the system combines them into one continuous gesture-based process where the user selects images and performs gestures simultaneously. This integration maintains high security while simplifying the user experience and reducing perceived operation complexity
Solution Approach 2:
The system allows users to create and configure their own authentication parameters (selecting preferred images, defining personal gestures, setting sequences) during initial setup. This self-service approach enables users to optimize the authentication process for their own convenience while maintaining security, effectively reducing operation complexity for regular use
Data Source
AI summary
Certain aspects of a device and method for authenticating a user are disclosed. The device may display a first set of images and receive a user input. The received user input may comprise a set of gestures and a selection of a plurality of images from the first set of images in a pre-determined sequence. The selected plurality of images may be modified based on the set of gestures. The device compares the modified selected plurality of images with a second set of pre-stored images. The device may authenticate the user based on the comparison.