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Direction navigation method and device based on fingerprint recognition, and fingerprint image sensor

A fingerprint sensor, fingerprint recognition technology, applied in character and pattern recognition, instrument, data processing input/output process, etc., can solve the problem of long recognition time, navigation failure, etc., to meet the needs of navigation, fill technical gaps, data The effect of reduced acquisition time and data processing time

Inactive Publication Date: 2018-01-09
SHENZHEN CHIPSAILING TECH CO LTD
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Problems solved by technology

[0005] The purpose of the embodiment of the present invention is to provide a direction navigation method based on fingerprint recognition, which aims to solve the problem that the existing fingerprint image sensor uses a multi-frame image algorithm for gesture navigation, and the navigation fails due to long recognition time

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  • Direction navigation method and device based on fingerprint recognition, and fingerprint image sensor
  • Direction navigation method and device based on fingerprint recognition, and fingerprint image sensor
  • Direction navigation method and device based on fingerprint recognition, and fingerprint image sensor

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Embodiment Construction

[0027] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

[0028] In the embodiment of the present invention, a navigation area is set on the sensor, and the navigation direction is judged by the hardware using the navigation data reporting point instead of the software by image comparison, so that the navigation direction judgment can be realized faster and more accurately, and the finger sliding speed can be accurately calculated.

[0029] figure 1 T...

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Abstract

The invention relates to the field of integrated circuits, and provides a direction navigation method and device based on fingerprint recognition, and a fingerprint image sensor. The method comprisessteps of setting multiple navigation regions in a pixel region of the fingerprint sensor; scanning the navigation regions for many times successively, and correspondingly generating a group of navigation data for each scanning; according to each group of the navigation data, judging pressing states of each navigation region during each scanning; and according to change of the pressing states of the navigation region during the successive scanning, judging the navigation direction and executing navigation instructions. According to the invention, by setting the navigation regions in the sensor,and replacing the software with the hardware in a navigation data position reporting manner, the navigation direction is judged in an image comparison mode, so judgment of the navigation direction isachieved quite rapidly and precisely and precise calculation of finger sliding speed is achieved.

Description

technical field [0001] The invention belongs to the field of integrated circuits, and in particular relates to a fingerprint identification-based direction navigation method, device and fingerprint image sensor. Background technique [0002] At present, more and more electronic devices are controlled by touch, and as the most mature biometric technology, fingerprint recognition is widely used in secure payment, identity verification, and various smart terminals, especially as the first choice. [0003] As an important component in fingerprint recognition, the fingerprint image sensor can recognize finger movements to generate corresponding control signals when performing direction navigation functions, such as fingers sliding up, down, left, right, etc. on the fingerprint image sensor and other more Judgment in multiple directions. [0004] However, the existing fingerprint image sensors usually collect multiple frames of complete images for gesture recognition (such as 4 d...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06F3/0487
Inventor 于泽
Owner SHENZHEN CHIPSAILING TECH CO LTD
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