Virtual Character Guidance for Contactless Palm Authentication
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing biometric authentication methods, such as palm print recognition, require continuous user adjustment of the hand position for accurate image capture, leading to low efficiency and a reliance on specific hardware infrastructure.
Innovation Solution
An image capturing method that uses a virtual character to guide hand positioning through dynamic posture adjustments, allowing contactless image capture by displaying a virtual character whose posture changes based on the hand's relative position, triggering capture when the posture meets a preset condition.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If contact capture method is used for palm print recognition, then the capturing device can obtain palm print images, but the user needs to continuously adjust hand position and repeatedly place the palm, resulting in low capturing efficiency
Solution Approach 1:
The system displays a virtual character whose posture dynamically reflects the relative position of the target part (palm) to the image capturing element. This visual feedback guides the user to adjust their hand position intuitively, eliminating the need for repeated trial-and-error placement and significantly improving capturing efficiency
Solution Approach 2:
A virtual character is introduced as an intermediary between the user and the capturing system. Instead of directly showing technical parameters or capture status, the system uses the virtual character's posture as a mediator to communicate positioning information, making the interaction more intuitive and reducing operational complexity
2Measurement precision
If traditional biometric authentication systems are used, then accurate image capture can be achieved, but specialized hardware infrastructure is required
Solution Approach 1:
The system uses a general-purpose image capturing element (such as a standard camera) that can perform both display functions and biometric capture functions. The virtual character display and positioning guidance are achieved through software processing of standard image data, eliminating the need for specialized capture hardware while maintaining accuracy
Solution Approach 2:
The system processes and analyzes images captured by the standard image capturing element itself, using the same device for both capture and initial processing. The virtual character generation and positioning feedback are computed from the captured image data, allowing the system to serve its own positioning and guidance needs without external specialized hardware
Data Source
AI summary
This application relates to an image capturing method and apparatus, a computer device, a storage medium, and a computer program product, for performing contactless biometric authentication. The contactless biometric authentication technique may include in response to a virtual character display operation triggered by a target part of a target object, controlling a display element to display a virtual character; controlling a character posture of the virtual character based on a relative position of the target part relative to an image capturing element; and when the duration in which the character posture of the virtual character remains a preset posture satisfies a preset capturing condition, triggering the image capturing element to capture an image of the target part.