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Face recognition quick retrieval method and device, server and storage device

A face recognition and fast technology, applied in the field of face recognition, can solve the problem of low accuracy of face retrieval scheme, and achieve the effect of avoiding unstable retrieval results

Active Publication Date: 2020-03-31
ZHEJIANG DAHUA TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] This application provides a face recognition fast retrieval method, device, server and storage device to solve the problem of low accuracy of existing face retrieval schemes

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  • Face recognition quick retrieval method and device, server and storage device
  • Face recognition quick retrieval method and device, server and storage device
  • Face recognition quick retrieval method and device, server and storage device

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Embodiment Construction

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0021] The terms "first", "second", and "third" in this application are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, features defined as "first", "second", and "third" may explicitly or implicitly include at least one of these features. In the description of the present application, "plurality" means at least t...

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Abstract

The invention discloses a face recognition quick retrieval method and device, a server and a storage device. The method comprises the steps: obtaining a plurality of frames of different face images ofthe same target person, and extracting the floating point number features of each face image; performing feature quantification on the floating point number features of each face image to obtain a plurality of quantified face features; calculating the similarity between each face feature and all sample features in a preset face database; selecting sample features according to the similarity to form sample subsets in one-to-one correspondence with the face features; accumulating the similarities of the same sample feature in all the sample subsets to obtain a final similarity of each sample feature in the sample subsets; and executing an alarm strategy according to the final similarity. According to the method, the plurality of sample subsets are screened out through the quantized face features, the similarity of the sample features in the sample subsets is calculated, the final similarity of the sample features is obtained, the alarm strategy is made according to the final similarity,and the face recognition precision is improved.

Description

technical field [0001] The present application relates to the technical field of face recognition, in particular to a face recognition fast retrieval method, device, server and storage device. Background technique [0002] For the needs of social security and convenient life, face recognition systems are widely used, including 1:1 verification of witness consistency and 1:N unknown face identification retrieval. In the 1:N application, it is necessary to prepare a face photo set of the object list in advance, and extract the features of the faces in the photo set, which is called the gallery (bottom library); the feature of the unknown face to be queried is also extracted, which is called probe (query item). When searching, it is necessary to compare the similarity (or distance) between the probe and each feature in the gallery. However, the number of features in the current gallery has reached tens of millions, resulting in time-consuming retrieval process and high resour...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06K9/62
CPCG06V40/172G06V40/168G06F18/22Y02D10/00
Inventor 邸德宁郝敬松
Owner ZHEJIANG DAHUA TECH CO LTD