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Method for detecting fingerprints using ultrasonic waves and biometric robot system

An ultrasonic and fingerprint technology, used in character and pattern recognition, acquisition/organization of fingerprints/palmprints, instruments, etc., can solve problems such as complex algorithms and low detection efficiency, and achieve high judgment accuracy, high accuracy, and difference calculation. The effect of simple algorithm

Active Publication Date: 2018-11-30
江苏久祥汽车电器集团有限公司
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0004] How to solve the problems of complex algorithms and low detection efficiency in traditional fingerprint detection

Method used

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  • Method for detecting fingerprints using ultrasonic waves and biometric robot system

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Embodiment Construction

[0033] Embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but should not be used to limit the scope of the present invention.

[0034] In the description of the present invention, unless otherwise stated, the meaning of "plurality" is two or more; the terms "upper", "lower", "left", "right", "inner", "outer" , "front end", "rear end", "head", "tail", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than Nothing indicating or implying that a referenced device or element must have a particular orientation, be constructed, and operate in a particular orientation should therefore not be construed as limiting the invention. In addition, t...

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Abstract

The invention discloses a method for detecting fingerprints by using ultrasonic waves. A detection unit is composed of the ultrasonic pulse transmitter and the ultrasonic signal receiver, and M(x, y) is assigned to the detection unit; Measure the distance of the corresponding point, and compare the distances DY and DY+1 of the points detected by the Yth and Y+1th detection units on the Xnth row to obtain a feature vector for storage; measure the distance of the finger prints, and then match the detection data with the comparison data in the comparison database one by one. The invention adopts a simple difference calculation algorithm, and the specific mark is composed of three symbols, the judgment precision is high, and the comparison efficiency is high. A biometric identification robot system, because the biometric identification robot system utilizes the above-mentioned fingerprint detection method, and because its operation rules are simple, not only the detection comparison efficiency is high, but also the detection accuracy is high.

Description

technical field [0001] The invention relates to the technical field of biological detection, in particular to a method for detecting fingerprints by using ultrasonic waves and a biological recognition robot system. Background technique [0002] Traditional biometric technologies include fingerprint detection, iris detection, etc. Fingerprint detection is to collect finger fingerprints through a camera, and then use a processor to retrieve and store standard fingerprints for comparison. The comparison process is to use a processor to compare images (fingerprint images). In this way, there are problems such as complicated comparison algorithm and long detection time, which are not suitable for the use of large databases. Contents of the invention [0003] (1) Technical issues [0004] How to solve the problems of complex algorithms and low detection efficiency in traditional fingerprint detection. [0005] (2) Technical solutions [0006] The invention provides a method f...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/00
CPCG06V40/1365G06V40/1306
Inventor 王慧张义民王丙祥韩强王当根
Owner 江苏久祥汽车电器集团有限公司