Authentication method and device

A technology of authenticated and authenticated devices, applied in the image field, can solve problems such as fingerprint authentication, counterfeit fingerprint cracking, smart door lock cracking, etc.

CN112446260APending Publication Date: 2021-03-05HANGZHOU EZVIZ SOFTWARE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2021-03-05

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Abstract

The invention provides an authentication method and equipment. In the application, the authentication equipment performs authentication by combining different feature information of the user's finger,such as fingerprint texture, fingerprint color information and finger vein distribution information. Generally, different feature information, such as fingerprint texture, fingerprint color information and finger vein distribution information, of the finger of the user is associated, and a counterfeiter is difficult to counterfeit the association, so that the authentication equipment provided bythe invention can be prevented from being counterfeited and attacked by the counterfeiter by combining different feature information of the finger of the user for authentication. Compared with the prior art that the user is authenticated only through the fingerprint, the authentication safety can be improved, and the authentication risk is reduced.
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Description

technical field

[0001] This application relates to image technology, in particular to an authentication method and device. Background technique

[0002] At present, many authentication devices use fingerprints for authentication (fingerprint authentication for short). Fingerprint authentication here refers to: compare the similarity between the fingerprints collected on-site and the fingerprints in the established database, if the similarity between the fingerprints collected on-site and a fingerprint in the established database meets the set authentication conditions (for example, the similarity is greater than the set threshold), it is determined that the authentication is passed; otherwise, it is determined that the authentication is not passed.

[0003] Taking the authentication device as a smart door lock (used to control access control) as an example to describe fingerprint authentication: the smart door lock compares the similarity between the currently collected fin...

Examples

Embodiment 1

[0045] In this embodiment 1, in the above step 201, the authentication device controls the camera to capture the image of the authenticated user's finger under the supplementary light of the supplementary light, which may include image 3 process shown.

[0046] see image 3 , image 3 A flow chart is implemented for step 201 provided in Embodiment 1 of the present application. Such as image 3 As shown, the process may include the following steps:

[0047] Step 301, turn on the first supplementary light, and the supplementary light wavelength of the first supplementary light is the first specified wavelength.

[0048] In actual implementation, the above-mentioned first specified wavelength can be set according to actual needs, and the final set wavelength needs to ensure that the camera can capture a clear fingerprint image.

[0049] Step 302, controlling the camera to take a fingerprint image of the authenticated user's finger under the supplementary light of the first su...

Embodiment 2

[0068] In this second embodiment, in the above step 201, the authentication device controls the camera to capture the image of the authenticated user's finger under the supplementary light of the supplementary light, which may include Figure 5 process shown.

[0069] see Figure 5 , Figure 5 A flow chart is implemented for step 201 provided in Embodiment 2 of the present application. Such as figure 2 As shown, the process may include the following steps:

[0070] Step 501, turn on the first supplementary light, the supplementary light wavelength of the first supplementary light is the first specified wavelength, and control the camera to capture the fingerprint image of the authenticated user's finger under the supplementary light of the first supplementary light.

[0071] The first supplementary light here is as described in Embodiment 1, and will not be repeated here.

[0072] Step 502, turn on the second supplementary light, the supplementary light wavelength of the...