Fingerprint image processing method, fingerprint identification apparatus and electronic device

A fingerprint image and processing method technology, applied in the field of fingerprint identification devices and electronic equipment, can solve the problems of common mode noise interference, affecting the correct recognition rate of the fingerprint identification system, and blurred images, so as to reduce common mode interference noise and enhance anti-common mode noise. Mode interference ability, the effect of improving the recognition sensitivity

Active Publication Date: 2018-09-28
SILEAD
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Problems solved by technology

[0003] However, in the actual application of mobile terminals such as mobile phones, the image detected by the fingerprint recognition sensor system will become blurred due to common-mode noise interference, dirty finger surface or other reasons, thus affecting the correct recognition of the fingerprint recognition system. Rate

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  • Fingerprint image processing method, fingerprint identification apparatus and electronic device
  • Fingerprint image processing method, fingerprint identification apparatus and electronic device
  • Fingerprint image processing method, fingerprint identification apparatus and electronic device

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Embodiment Construction

[0048] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described The embodiments are only some of the embodiments of the present application, but not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application. For example, in the following description, forming the second component above the first component may include an embodiment in which the first component and the second component are formed in direct contact, and may also include an embodiment in which the first component and the second component are formed in indirect contact ( That is, the...

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Abstract

Embodiments of the invention provide a fingerprint image processing method, a fingerprint identification apparatus and an electronic device. The fingerprint image processing method comprises the stepsof obtaining fingerprint image data collected by multiple channels, and extracting a first image set from the fingerprint image data, wherein elements of the first image set are fingerprint images collected in any same batch by the collection channels; performing gray value reduction processing on the elements in the first image set to reduce gray values of the elements with the minimum gray values in the first image set to zero, thereby obtaining a second image set; and performing gray value amplification processing on the elements in the second image set. According to the method, the interference of common mode noises can be inhibited and the sensitivity of a fingerprint identification system can be improved.

Description

technical field [0001] The present application relates to the technical field of fingerprint image processing, in particular to a fingerprint image processing method, a fingerprint identification device and electronic equipment. Background technique [0002] At present, fingerprint recognition sensor systems are widely used in electronic devices such as mobile terminals, and fingerprint recognition sensors often adopt the principles of capacitive, optical or ultrasonic methods. [0003] However, in the actual application of mobile terminals such as mobile phones, the image detected by the fingerprint recognition sensor system will become blurred due to common-mode noise interference, dirty finger surface or other reasons, thus affecting the correct recognition of the fingerprint recognition system. Rate. Therefore, how to suppress the interference of common mode noise and improve the sensitivity of the fingerprint recognition system is a technical problem that needs to be s...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06K9/40
CPCG06V40/1347G06V10/30
Inventor 杨军李彬苏荻
Owner SILEAD
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