Biometric Scanning Unit Positioning for Fingerprint Recognition
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Solution Overview
Problem
Current optical fingerprint recognition methods require full-screen scanning, leading to increased workload, bandwidth occupation, and inefficient information processing due to the collection of unnecessary data.
Innovation Solution
A method and device for biometric identification that detects touch actions on a screen and drives corresponding biometric scanning units based on position information, allowing for targeted scanning data acquisition and discarding of non-corresponding results, thereby reducing unnecessary scanning and improving processing efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If full-screen scanning is performed for optical fingerprint recognition, then complete fingerprint data can be collected, but the workload of scanning increases and useless information occupies bandwidth
Solution Approach 1:
The screen is divided into multiple biometric scanning units arranged in a matrix, where each unit corresponds to a specific screen region. Only the scanning units corresponding to the touch position are activated, rather than scanning the entire screen. This segmentation approach reduces the scanning workload while maintaining fingerprint recognition accuracy.
Solution Approach 2:
The patent implements localized scanning by activating only the biometric scanning units that correspond to the touch position on the screen. Different regions of the screen have different scanning requirements based on where the user touches, allowing the system to focus resources on the relevant local area rather than uniformly scanning the entire screen.
2Reliability
If full-screen scanning is performed, then all areas are covered, but transmission of useless information increases and occupies bandwidth
Solution Approach 1:
The patent extracts and processes only the biometric scanning data from the specific region corresponding to the touch position, discarding data from other regions. This extraction approach eliminates useless information transmission while ensuring that all relevant fingerprint information at the touch location is captured for reliable detection.
3Measurement precision
If entire screen scanning is performed, then comprehensive data is collected, but information processing becomes difficult
Solution Approach 1:
The patent segments the biometric data processing by handling only the scanning results from the touched region's corresponding scanning units. This segmentation simplifies the processing complexity by reducing the volume of data that needs to be analyzed while maintaining the accuracy of biometric identification through focused processing of relevant data.
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 effectively utilizes existing screen detection mechanisms to obtain relative fingerprint positions, reducing the consumption of biometric scanning units and enhancing processing efficiency by only scanning the necessary areas, thus saving energy and computing resources.
Implementation Method 1
The biometric scanning unit includes a light emitting component, a photosensitive component and a drive circuit
Implementation Method 2
the photosensitive component receives the reflected light signal to obtain a photosensitive image
Data Source
AI summary
A method, storage media and device for biometric identification driving is provided. The method for biometric identification driving includes the steps. First, a touch action of a living organism is detected on a screen. Next, a position information of the touch action is obtained on the screen. Next, a scanning data of a corresponding biometric scanning unit of the screen is obtained according to the position information of the touch action on the screen. the above technical solution could effectively utilize existing screen detection mechanisms. Pre-detection steps is performed before detecting a fingerprint. A relative position of the fingerprint on the screen is obtained according to the existing screen detection mechanism. Thus, the biometric scanning unit or a fingerprint scanning unit detected by the relative position is effective. Finally, an effective scanning result of the biometric scanning unit is obtained.