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Biometric authentication method and device
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A biometric and authentication method technology, applied in the field of image processing, can solve problems such as low authentication accuracy
Active Publication Date: 2020-10-27
BEIJING EYECOOL TECH CO LTD
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[0005] The present invention provides a biological feature authentication method and device to at least solve the technical problem of using the existing biological feature authentication method to authenticate the biological features in low-quality images and low authentication accuracy
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Embodiment 1
[0022] According to an embodiment of the present invention, a method embodiment of a biometric authentication method is provided. It should be noted that the steps shown in the flow chart of the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions, Also, although a logical order is shown in the flowcharts, in some cases the steps shown or described may be performed in an order different from that shown or described herein.
[0023] figure 1 is a flowchart of a biometric authentication method according to an embodiment of the present invention, such as figure 1 As shown, the method includes the following steps:
[0024] Step S102, acquiring an image of the biometric feature to be authenticated.
[0025] Specifically, the above-mentioned biometric feature may be an iris feature, a fingerprint feature, a voice feature, etc. The embodiment of the present invention uses the iris feature as an example for description.
[002...
Embodiment 2
[0083] According to an embodiment of the present invention, a device embodiment of a biometric authentication device is provided.
[0084] Figure 8 is a schematic diagram of a biometric authentication device according to an embodiment of the present invention, such as Figure 8 As shown, the device includes:
[0085] The first acquiring module 81 is configured to acquire an image of the biometric feature to be authenticated.
[0086] Specifically, the above-mentioned biometric feature may be an iris feature, a fingerprint feature, a voice feature, etc., and the present invention uses the iris feature as an example for description.
[0087] The coding module 83 is configured to code the image of the biometric feature to be authenticated to obtain the feature code of the biometric feature to be authenticated.
[0088] In an optional solution, when iris authentication is required, the image of the iris feature to be authenticated can be collected to obtain an iris image. Afte...
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Abstract
The invention discloses a biometric authentication method and device. Wherein, the method includes: acquiring the image of the biometric feature to be authenticated; encoding the image of the biometric feature to be authenticated to obtain the feature code of the biometric feature to be authenticated; using the joint feature distribution to calculate the feature code of the biometric feature to be authenticated and The similarity of the preset feature code; if the similarity is greater than or equal to the preset similarity, it is determined that the biometric authentication to be authenticated is successful. The invention solves the technical problem of low authentication accuracy when using the existing biometric authentication method to authenticate the biometrics in low-quality images.
Description
technical field [0001] The present invention relates to the field of image processing, in particular to a biometric authentication method and device. Background technique [0002] Biometric identification has a very broad application prospect. For example, iris recognition is one of the high-precision biometric identification methods. Because of its own special advantages, it has important applications in many occasions such as frontier import and export control, bank safes, etc. The existing biometric identification method is mainly inspired by the theoretical framework of Dr. Daugman, by segmenting the biometric region, normalizing the biometric region, using Gabor filter and other feature extraction methods to extract the biometric code, and comparing the Hamming between the codes. distance to complete biometric recognition tasks. [0003] However, with the increasing improvement of biometric identification technology and the popularization of terminal equipment, more an...
Claims
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