Fingerprint Sensor Gesture Recognition via Image Analysis
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Solution Overview
Problem
Existing touch sensing panels integrated with fingerprint sensors increase overall panel thickness, necessitating alternative solutions to replace the touch sensing function.
Innovation Solution
A gesture recognition system utilizing a fingerprint sensor and processing circuit to recognize user gestures by comparing fingerprint images, determining gestures based on coordinate and grayscale value changes between images.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a touch sensing panel is integrated with a fingerprint sensor, then fingerprint recognition function is improved, but the overall panel thickness increases
Solution Approach 1:
The fingerprint sensor is designed to perform multiple functions: traditional fingerprint recognition and touch sensing gestures. By analyzing coordinate changes and grayscale value variations from the same sensor data, the system achieves both authentication and gesture control capabilities, eliminating the need for separate touch panel layers and reducing overall device thickness.
2Reliability
If a touch sensing panel is integrated with a fingerprint sensor, then fingerprint recognition function is improved, but device cost increases
Solution Approach 1:
The system makes the fingerprint sensor perform dual roles as both an authentication device and a touch sensing input device. By processing coordinate and grayscale data from the fingerprint sensor to recognize gestures, the invention eliminates the need for additional touch panel components, thereby reducing manufacturing complexity and device cost while maintaining fingerprint recognition capability.
Data Source
AI summary
A gesture recognition system and a gesture recognition method are provided. The gesture recognition system includes a fingerprint sensor and a processing circuit. The processing circuit obtains a first fingerprint image and a second fingerprint image through the fingerprint sensor. The processing circuit obtains a plurality of first coordinate parameters of a plurality of first coordinate points in the first fingerprint image, and obtains a plurality of second coordinate parameters of a plurality of second coordinate points in the second fingerprint image. The first coordinate points of the first fingerprint image and the second coordinate points of the second fingerprint image respectively have a plurality of grayscale values corresponding to each other. The processing circuit determines a gesture operation according to the first coordinate parameters and the second coordinate parameters.