Ultrasonic fingerprint identification method and device, storage medium and electronic equipment
A fingerprint recognition and ultrasonic technology, applied in the electronic field, can solve the problems of reducing the accuracy of fingerprint recognition and so on.
Pending Publication Date: 2020-12-25
GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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Problems solved by technology
However, fingerprint locks on electronic devices are sometimes attacked by illegal fingerprints, such as fingerprints on printing paper, residual fingerprints on clothes, silicone fingerprints, etc. reduce
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[0035] 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. Apparently, the described embodiments are only some of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making creative efforts belong to the protection scope of this application.
[0036] An embodiment of the present application provides an electronic device. The electronic equipment may be devices such as smart phones and tablet computers, and may also be game devices, AR (Augmented Reality, Augmented Reality) equipment, automobile devices, data storage devices, audio playback devices, video playback devices, notebook computers, desktop computing devices, etc. equipment etc.
[0037] refer to figure 1 , figure 1 It is a schematic diagram of the first stru...
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The embodiment of the invention provides an ultrasonic fingerprint identification method and device, a storage medium and electronic equipment. The ultrasonic fingerprint identification method comprises the following steps: transmitting an ultrasonic signal according to a fingerprint identification instruction; receiving a first reflection signal, and obtaining a first three-dimensional fingerprint image according to the first reflection signal; receiving a second reflection signal after a preset duration, and obtaining a second three-dimensional fingerprint image according to the second reflection signal; determining the similarity between the first three-dimensional fingerprint image and the second three-dimensional fingerprint image; and determining a fingerprint identification result according to the similarity. According to the ultrasonic fingerprint identification method, the electronic equipment can obtain the epidermal layer fingerprint and the corium layer fingerprint according to the biological characteristics of the human finger, so that the illegal fingerprint can be accurately identified, the fingerprint identification error caused by the illegal fingerprint attack isprevented, and the fingerprint identification accuracy can be improved.
Description
technical field [0001] The present application relates to the field of electronic technology, in particular to an ultrasonic fingerprint identification method, device, storage medium and electronic equipment. Background technique [0002] With the development of electronic technology, electronic devices such as smart phones are used more and more frequently in users' lives. For example, users can implement social functions, shopping functions, payment functions, etc. through electronic devices. Therefore, users have higher and higher security requirements for electronic devices. [0003] Usually, the electronic device is provided with a fingerprint lock, which is used to verify the identity of the user, so as to ensure the security of the user using the electronic device. However, fingerprint locks on electronic devices are sometimes attacked by illegal fingerprints, such as fingerprints on printing paper, residual fingerprints on clothes, silicone fingerprints, etc. redu...
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IPC IPC(8): G06K9/00G06K9/62
CPCG06V40/1382G06V40/1306G06F18/22G06F18/00
Inventor 吴安平杨乐
Owner GUANGDONG OPPO MOBILE TELECOMM CORP LTD