WO2019095587A1

WO2019095587A1 - Face recognition method, application server, and computer-readable storage medium

Info

Publication number: WO2019095587A1
Application number: PCT/CN2018/077640
Authority: WO
Inventors: 戴磊
Original assignee: 平安科技（深圳）有限公司
Priority date: 2017-11-17
Filing date: 2018-02-28
Publication date: 2019-05-23
Also published as: CN108052864B; CN108052864A

Abstract

Disclosed are a face recognition method, wherein same is applied to an application server and comprises: acquiring information of a face to be recognized; calculating matching values between the face to be recognized and samples to be classified in classifiers connected in series, respectively; if the matching values are all less than a pre-set value, inputting the face to be recognized to the classifiers connected in parallel; selecting a pre-set number of samples to be classified that have a high degree of similarity; assigning values to the samples to be classified and calculating corresponding weight values; and selecting the sample to be classified that has the minimum weight value as the recognized face. Further provided are an application server and a computer-readable storage medium. By means of the face recognition method, the application server and the computer-readable storage medium provided in the present application, the error acceptance rate and the error rejection rate can be reduced, thereby improving the accuracy of face recognition.

Description

Face recognition method, application server and computer readable storage medium

This application claims the priority of the Chinese Patent Application filed on November 17, 2017, the Chinese Patent Office, the application number is 201711141724.8, and the invention is entitled "Face recognition method, application server and computer readable storage medium". The citation is incorporated in the application.

Technical field

The present application relates to the field of face recognition technologies, and in particular, to a face recognition method, an application server, and a computer readable storage medium.

Background technique

With the development of artificial intelligence technology, identity recognition technology is becoming more and more mature, including face recognition technology. In the existing face recognition technology, when the face recognition algorithm determines that the error acceptance rate and the error rejection rate are different due to the threshold setting, the following may occur:

(1) If the threshold is set too high, the probability of false positives is reduced, that is, the acceptance rate of the error is lowered, and at the same time, the phenomenon that the recognition object is rejected by the person may be rejected, that is, the rejection rate of the error may also increase;

(2) The threshold setting is low, the probability of false positives is increased, that is, the acceptance rate of the error is increased, and the rejection rate of the error is simultaneously decreased.

The face recognition technology based on the above conventional fixed algorithm cannot meet the needs of the application.

Summary of the invention

In view of this, the present application proposes a face recognition method, an application server, and a computer readable storage medium to reduce an erroneous acceptance rate and an erroneous rejection rate.

First, in order to achieve the above object, the present application provides a face recognition method, the method comprising the steps of:

Obtaining information of the face to be recognized;

Calculating, respectively, a matching value of the to-be-classified sample in the classifier to be recognized and the classifier connected in a serial manner;

Determining whether the matching value of the to-be-identified face and each sample to be classified is less than a corresponding preset value;

If the matching value of the to-be-identified face and each sample to be classified is smaller than the corresponding preset value, input the face to be recognized into a classifier connected in parallel, wherein the parallel The classifier connected in the manner includes samples to be classified;

Arranging the samples to be classified according to the similarity with the face to be recognized, and selecting a preset number of samples to be classified with high similarity with the face to be recognized;

And assigning different weight values to the samples to be classified according to the similarity between the to-be-identified face and the sample to be classified, and calculating a total weight value corresponding to the sample to be classified;

The sample to be classified having the smallest total weight value is selected as the recognized face to output the sample to be classified.

In addition, in order to achieve the above object, the present application further provides an application server, including a memory and a processor, where the memory stores a face recognition system operable on the processor, where the face recognition system is The steps of the face recognition method as described above are implemented when the processor is executed.

Further, in order to achieve the above object, the present application further provides a computer readable storage medium storing a face recognition system, the face recognition system being executable by at least one processor to The at least one processor performs the steps of the face recognition method as described above.

Compared with the prior art, the face recognition method, the application server and the computer readable storage medium proposed by the present application can reduce the error acceptance rate and the wrong rejection rate to improve the accuracy of face recognition.

DRAWINGS

1 is a schematic diagram of an optional hardware architecture of an application server of the present application;

2 is a schematic diagram of program modules of the first, second, and third embodiments of the present applicant's face recognition system;

3 is a schematic diagram of a program module of a fourth embodiment of the present applicant's face recognition system;

4 is a schematic flow chart of the first embodiment of the present applicant's face recognition method;

5 is a schematic flow chart of a second embodiment of the present applicant's face recognition method;

FIG. 6 is a schematic flow chart of a third embodiment of the present applicant's face recognition method.

The implementation, functional features and advantages of the present application will be further described with reference to the accompanying drawings.

Detailed ways

In order to make the objects, technical solutions, and advantages of the present application more comprehensible, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are merely illustrative of the application and are not intended to be limiting. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present application without departing from the inventive scope are the scope of the present application.

It should be noted that the descriptions of "first", "second" and the like in the present application are for the purpose of description only, and are not to be construed as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. . Thus, features defining "first" or "second" may include at least one of the features, either explicitly or implicitly. In addition, the technical solutions between the various embodiments may be combined with each other, but must be based on the realization of those skilled in the art, and when the combination of the technical solutions is contradictory or impossible to implement, it should be considered that the combination of the technical solutions does not exist. Nor is it within the scope of protection required by this application.

Referring to FIG. 1, it is a schematic diagram of an optional hardware architecture of the application server 2 of the present application.

In this embodiment, the application server 2 may include, but is not limited to, the memory 11, the processor 12, and the network interface 13 being communicably connected to each other through a system bus. It is to be noted that FIG. 2 only shows the application server 2 with components 11-13, but it should be understood that not all illustrated components may be implemented, and more or fewer components may be implemented instead.

The application server 2 may be a computing device such as a rack server, a blade server, a tower server, or a rack server. The application server 2 may be an independent server or a server cluster composed of multiple servers. .

The memory 11 includes at least one type of readable storage medium including a flash memory, a hard disk, a multimedia card, a card type memory (eg, SD or DX memory, etc.), a random access memory (RAM), a static Random access memory (SRAM), read only memory (ROM), electrically erasable programmable read only memory (EEPROM), programmable read only memory (PROM), magnetic memory, magnetic disk, optical disk, and the like. In some embodiments, the memory 11 may be an internal storage unit of the application server 2, such as a hard disk or memory of the application server 2. In other embodiments, the memory 11 may also be an external storage device of the application server 2, such as a plug-in hard disk equipped on the application server 2, a smart memory card (SMC), and a secure digital number. (Secure Digital, SD) card, flash card, etc. Of course, the memory 11 can also include both the internal storage unit of the application server 2 and its external storage device. In this embodiment, the memory 11 is generally used to store an operating system installed in the application server 2 and various types of application software, such as program codes of the face recognition system 200. Further, the memory 11 can also be used to temporarily store various types of data that have been output or are to be output.

The processor 12 may be a Central Processing Unit (CPU), controller, microcontroller, microprocessor, or other data processing chip in some embodiments. The processor 12 is typically used to control the overall operation of the application server 2. In this embodiment, the processor 12 is configured to run program code or process data stored in the memory 11, such as running the face recognition system 200 or the like.

The network interface 13 may comprise a wireless network interface or a wired network interface, which is typically used to establish a communication connection between the application server 2 and other electronic devices.

So far, the hardware structure and functions of the devices related to this application have been described in detail. Hereinafter, various embodiments of the present application will be made based on the above description.

First, the present application proposes a face recognition system 200. Referring to Fig. 2, it is a program block diagram of the first, second and third embodiments of the applicant's face recognition system 200.

First embodiment

In this embodiment, the face recognition system 200 includes a series of computer program instructions stored in the memory 11, and when the computer program instructions are executed by the processor 12, the face recognition operation of the embodiments of the present application can be implemented. . In some embodiments, the face recognition system 200 can be divided into one or more modules based on the particular operations implemented by the various portions of the computer program instructions. For example, in FIG. 2, the face recognition system 200 can be divided into an acquisition module 201, a calculation module 202, a determination module 203, an input module 204, a selection module 205, an assignment module 206, a selection module 207, a cutting module 208, and Normalized module 209. among them:

The obtaining module 201 is configured to obtain information about a face to be recognized.

Specifically, when a user passes, the obtaining module 201 acquires face information of the user to identify the user. In a preferred embodiment, the face to be recognized can be collected by any device such as a camera, a digital camera, or a scanner.

The calculating module 202 is configured to separately calculate matching values of the to-be-classified sample in the classifier to be recognized and the classifier connected in a serial manner.

Specifically, the first classifier and the second classifier are connected in a serial manner, and the to-be-identified face passes through the first classifier and the second classifier in sequence to perform face matching. The calculating module 202 respectively calculates matching values of the samples to be classified in the first classifier and the second classifier when the face to be recognized passes through the first classifier and the second classifier. It should be noted that the serial mode indicates that each respective classifier is sample-trained in time with each different subset in time.

The determining module 203 is configured to determine whether the matching value of the to-be-identified face and each sample to be classified is less than a corresponding preset value.

Specifically, after the calculating module 202 calculates the matching values of the to-be-identified face and the samples to be classified in the first classifier and the second classifier, the determining module 203 determines the matching value. Whether it is less than the corresponding preset value.

The input module 204 is configured to: when the matching values of the sample to be classified and the face to be recognized in the first classifier and the second classifier are both smaller than the corresponding preset value, The face to be recognized is input to a classifier connected in parallel. The classifiers connected in parallel include samples to be classified.

Specifically, when the determining module 203 determines that the matching values of the sample to be classified and the face to be recognized in the first classifier and the second classifier are both smaller than the corresponding preset value, the determining The module 203 determines that the face to be recognized is not successfully identified in the first classifier and the second classifier. At this time, the input module 204 inputs the face to be recognized to a classifier connected in parallel. It should be noted that the parallel mode indicates that each of the corresponding classifiers is sampled with different subsets at the same time. The classifier connected in parallel includes at least the first classifier and the second classifier.

The selecting module 205 is configured to arrange the samples to be classified according to the similarity with the face to be recognized, and select a preset number of samples to be classified with high similarity with the face to be recognized.

Specifically, the selecting module 205 separately compares the sample to be classified in the to-be-classifier with the to-be-identified according to the calculated similarity between the to-be-identified face and the sample to be classified in the classifier. Face similarity is arranged in descending order. The selecting module 205 selects, from the aligned samples to be sorted, the first N samples to be classified that are similar to the face to be recognized. In the present embodiment, N = 2. For example, the selection module 205 selects the sample A to be classified and the sample B to be classified in the first classifier, and selects the sample A to be classified and the sample B to be classified in the second classifier.

The value-adding module 206 is configured to assign different weight values to the samples to be classified according to the similarity between the to-be-identified face and the sample to be classified, and calculate a total weight value corresponding to the sample to be classified.

Specifically, the evaluation module 206 assigns different weight values to the selected first two to-be-classified samples according to the similarity between the to-be-identified face and the sample to be classified, and calculates the first two samples to be classified. The total weight value obtained. For example, after the selection module 205 selects the sample A to be classified and the sample B to be classified, the evaluation module 206 assigns different weight values to the classified sample A and the sample to be classified, respectively, wherein the first classifier has an assignment module. 206 assigns a weight value of 1 to the sample A to be classified, and a weight value of 2 to the sample B to be classified, and the weighting value of the sample A to be classified in the second classifier is 2, and the weight value of the sample B to be classified is given. 2, at this time, the sample A to be classified obtains a total weight value of 3, and the sample B to be classified obtains a total weight value of 4.

The selecting module 207 is configured to select a sample to be classified with the smallest total weight value as the recognized human face to output the sample to be classified.

Specifically, if the weight value obtained by the sample A to be classified in the first classifier is 1, the weight value obtained by the sample B to be classified is 2, and the weight value obtained by the sample A to be classified in the second classifier 2, the sample B to be classified obtains a weight value of 2, the total weight value obtained by the sample A to be classified is 3, and the sample B to be classified obtains a total weight value of 4, and the selection module 207 selects the sample A to be classified as The recognized face is output and the sample A to be classified is output. In a preferred embodiment, the recognized face is output by an output device, wherein the output device includes a display or an alarm or the like. It should be noted that the smaller the total weight value obtained by the sample to be classified, the higher the similarity with the face to be recognized.

In the present embodiment, the classifier refers to when the input data contains a plurality of samples, and each sample includes a plurality of attributes, and one of the special attributes is referred to as a class (for example, high, medium, and low degrees of similarity). The purpose of the classifier is to analyze the input data and build a model and use this model to classify the input data. The above classifier includes: a support vector machine classifier, an artificial neural network classifier, a fuzzy classifier, a Bayesian classifier, a template matching classifier, a geometric classifier, and the like can be used.

Second embodiment

The calculation module 202 is further configured to calculate a first matching value between the to-be-identified face and the sample to be classified in the first classifier.

Specifically, the calculation module 202 calculates a first matching value of the to-be-identified face and the sample to be classified in the first classifier according to the face histogram.

The determining module 203 is further configured to determine whether the first matching value is greater than a first preset value.

The selecting module 207 is further configured to: when the first matching value is greater than the first preset value, select a sample to be classified in the first classifier as the recognized human face.

Specifically, if the first matching value is greater than the first preset value, it indicates that the to-be-identified face matches the sample to be classified in the first classifier, and the selecting module 207 selects the to-be-selected The classification sample is the recognized face.

Third embodiment

In this embodiment, if the determining module 203 determines that the first matching value is smaller than the first preset value, then:

The calculation module 202 is further configured to calculate a second matching value of the to-be-identified face and the sample to be classified in the second classifier.

Specifically, the calculating module 202 calculates a second matching value of the to-be-identified face and the sample to be classified in the second classifier according to the face histogram.

The determining module 203 is further configured to determine whether the second matching value is greater than a second preset value.

The selecting module 207 is further configured to: when the second matching value is greater than the second preset value, select a sample to be classified in the second classifier as the recognized human face.

Referring to FIG. 3, it is a program module diagram of the fourth embodiment of the applicant's face recognition system 200. In this embodiment, the face recognition system 200 includes the acquisition module 201, the calculation module 202, the determination module 203, the input module 204, the selection module 205, the assignment module 206, and the selection module 207 in the first embodiment. In addition, a cutting module 208 and a normalization module 209 are also included.

The cutting module 208 is configured to calibrate and cut the face to be recognized.

Specifically, after the acquiring module 201 acquires the information of the face to be recognized, the cutting module 208 performs calibration cutting on the face to be recognized to obtain and identify feature information of the face to be recognized.

The normalization module 209 is further configured to normalize the cut face to be recognized by the histogram to obtain a face histogram.

Specifically, after the cutting module 208 cuts the face to be recognized, the normalization module 209 performs histogram normalization on the face to be recognized to obtain a histogram of the face, by straightening the face The graph is compared with the sample to be classified, and the matching value between the face to be recognized and the sample to be classified is calculated.

In addition, the present application also proposes a face recognition method.

Referring to FIG. 4, it is a schematic flowchart of the first embodiment of the present applicant's face recognition method. In this embodiment, the order of execution of the steps in the flowchart shown in FIG. 4 may be changed according to different requirements, and some steps may be omitted.

Step S400, acquiring information of a face to be recognized.

Specifically, when a user passes, the face information of the user is acquired to identify the user. In a preferred embodiment, the face to be recognized can be collected by any device such as a camera, a digital camera, or a scanner.

Step S402, respectively calculating a matching value of the to-be-classified sample in the classifier to be recognized and the classifier connected in a serial manner.

Specifically, the first classifier and the second classifier are connected in a serial manner, and the to-be-identified face passes through the first classifier and the second classifier in sequence to perform face matching. And matching values of the samples to be classified in the first classifier and the second classifier when the face to be recognized passes through the first classifier and the second classifier, respectively. It should be noted that the serial mode indicates that each respective classifier is sample-trained in time with each different subset in time.

Step S404, determining whether the matching value of the to-be-identified face and each sample to be classified is smaller than a corresponding preset value.

Specifically, after the matching values of the to-be-identified face and the samples to be classified in the first classifier and the second classifier are respectively calculated, it is determined whether the matching values are all smaller than the corresponding preset values.

Step S406, when the matching values of the sample to be classified and the face to be recognized in the first classifier and the second classifier are both smaller than the corresponding preset value, the face to be recognized is input. To classifiers connected in parallel. The classifiers connected in parallel include samples to be classified.

Specifically, when it is determined that the matching values of the sample to be classified and the face to be recognized in the first classifier and the second classifier are both smaller than the corresponding preset value, determining the person to be identified The face is not recognized successfully in both the first classifier and the second classifier. At this time, the face to be recognized is input to a classifier connected in parallel. It should be noted that the parallel mode indicates that each of the corresponding classifiers is sampled with different subsets at the same time. The classifier connected in parallel includes at least the first classifier and the second classifier.

Step S408: Arranging the samples to be classified according to the similarity with the face to be recognized, and selecting a preset number of samples to be classified with high similarity with the face to be recognized.

Specifically, according to the calculated similarity between the to-be-identified face and the sample to be classified in the classifier, respectively, the similarity between the sample to be classified and the face to be recognized in the classifier is High to low order. And, the first N samples to be classified with high similarity to the face to be recognized are selected from the samples to be classified that are arranged. In the present embodiment, N = 2. For example, the sample A to be classified and the sample B to be classified in the first classifier are selected, and the sample A to be classified and the sample B to be classified in the second classifier are selected.

Step S410: assign different weight values to the samples to be classified according to the similarity between the to-be-identified face and the sample to be classified, and calculate a total weight value corresponding to the sample to be classified.

Specifically, different weight values are respectively assigned to the first two samples to be classified according to the similarity between the face to be identified and the sample to be classified, and the total weights obtained by the first two samples to be classified are calculated. . For example, after selecting the sample A to be classified and the sample B to be classified, the sample to be classified A and the sample to be classified B are respectively given different weight values, wherein the weight value of the sample A to be classified in the first classifier is given 1 The weight value of the sample B to be classified in the first classifier is 2, and the weight value of the sample A to be classified in the second classifier is 2, and the weight value of the sample B to be classified in the second classifier is 2, and the time is The classification sample A obtains a total weight value of 3, and the sample to be classified B obtains a total weight value of 4.

Step S412, selecting a sample to be classified with the smallest total weight value as the recognized face to output the sample to be classified.

Specifically, if the weight value obtained by the sample A to be classified in the first classifier is 1, the weight value obtained by the sample B to be classified is 2, and the weight value obtained by the sample A to be classified in the second classifier 2, the sample B to be classified obtains a weight value of 2, the sample A to be classified obtains a total weight value of 3, and the sample B to be classified obtains a total weight value of 4, and the sample A to be classified is selected as the recognized face and The sample A to be classified is output. In a preferred embodiment, the recognized face is output by an output device, wherein the output device includes a display or an alarm or the like. It should be noted that the higher the similarity of the face, the fewer the number of votes obtained.

As shown in FIG. 5, it is a schematic flowchart of the second embodiment of the present applicant's face recognition method. In this embodiment, the steps S500, S506-S516 of the face recognition method are similar to the steps S400-S412 of the first embodiment, except that the method further includes steps S502-S504.

The method includes the following steps:

Step S500, obtaining information of a face to be recognized.

Step S502, calibrating and cutting the face to be recognized.

Specifically, after acquiring the information of the face to be recognized, the face to be recognized is subjected to calibration cutting to obtain and identify feature information of the face to be recognized.

Step S504, the histogram normalizes the cut face to be recognized to obtain a face histogram, so as to calculate a matching value between the face to be recognized and the sample to be classified through a face histogram.

Specifically, after the face to be recognized is cut, a histogram normalization is performed on the face to be recognized to obtain a face histogram, so that the face to be recognized is calculated by the face histogram and the face The matching value of the sample to be classified.

Step S506, respectively calculating a matching value of the to-be-classified sample in the classifier to be recognized and the classifier connected in a serial manner.

Step S508, determining whether the matching value of the to-be-identified face and each sample to be classified is less than a corresponding preset value.

Step S510, when the matching value of the sample to be classified and the face to be recognized in the first classifier and the second classifier are both smaller than the corresponding preset value, input the face to be recognized To classifiers connected in parallel. The classifiers connected in parallel include samples to be classified.

Step S512, the samples to be classified are arranged according to the similarity with the face to be recognized, and a predetermined number of samples to be classified with high similarity with the face to be recognized are selected.

Step S514: assign different weight values to the samples to be classified according to the similarity between the face to be identified and the sample to be classified, and calculate a total weight value corresponding to the sample to be classified.

Specifically, the first two to-be-classified samples are assigned different weight values according to the similarity between the to-be-identified face and the sample to be classified, and the total weights obtained by the first two samples to be classified are calculated. . For example, after selecting the sample A to be classified and the sample B to be classified, the weight values corresponding to the sample A to be classified and the sample B to be classified are respectively assigned, wherein the weight value of the sample A to be classified in the first classifier is assigned to 1, The weight value of the sample B to be classified in the first classifier is 2, and the weight value of the sample A to be classified in the second classifier is 2, and the weight value of the sample B to be classified in the second classifier is 2, and the time is The classification sample A obtains a total weight value of 3, and the sample to be classified B obtains a total weight value of 4.

Step S516, selecting a sample to be classified with the smallest total weight value as the recognized human face to output the sample to be classified.

Specifically, if the weight value obtained by the sample A to be classified in the first classifier is 1, the weight value obtained by the sample B to be classified in the first classifier is 2, and the sample to be classified in the second classifier A obtains a weight value of 2, a weight value obtained by the sample B to be classified in the second classifier is 2, a total weight value obtained by the sample A to be classified is 3, and a total weight value of 4 to be classified is selected. The sample A to be classified is taken as the recognized face and the sample A to be classified is output. In a preferred embodiment, the recognized face is output by an output device, wherein the output device includes a display or an alarm or the like. It should be noted that the higher the similarity of the face, the fewer the number of votes obtained.

FIG. 6 is a schematic flowchart diagram of a third embodiment of the present applicant's face recognition method. In this embodiment, step S506 of the second embodiment further includes the following steps:

Step S600: Calculate a first matching value between the to-be-identified face and the sample to be classified in the first classifier.

Specifically, the first matching value of the to-be-identified face and the sample to be classified in the first classifier is calculated according to the face histogram.

In step S602, it is determined whether the first matching value is greater than the first preset value. If the first matching value is greater than the first preset value, step S604 is performed, otherwise step S606 is performed.

Step S604, selecting a sample to be classified in the first classifier as the recognized face.

Specifically, if the first matching value is greater than the first preset value, it indicates that the to-be-identified face is successfully matched with the sample to be classified in the first classifier, and the sample to be classified is selected to be recognized. Face.

Step S606, calculating a second matching value of the to-be-identified face and the sample to be classified in the second classifier.

Specifically, the second matching value of the to-be-identified face and the sample to be classified in the second classifier is calculated according to the face histogram.

Step S608, determining whether the second matching value is greater than a second preset value.

Step S610: When the second matching value is greater than the second preset value, select a sample to be classified in the second classifier as the recognized human face.

The face recognition method proposed in this embodiment can reduce the error acceptance rate and the false rejection rate, thereby improving the accuracy of face recognition.

The serial numbers of the embodiments of the present application are merely for the description, and do not represent the advantages and disadvantages of the embodiments.

Through the description of the above embodiments, those skilled in the art can clearly understand that the foregoing embodiment method can be implemented by means of software plus a necessary general hardware platform, and of course, can also be through hardware, but in many cases, the former is better. Implementation. Based on such understanding, the technical solution of the present application, which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a storage medium (such as ROM/RAM, disk, The optical disc includes a number of instructions for causing a terminal device (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to perform the methods described in various embodiments of the present application.

The above is only a preferred embodiment of the present application, and is not intended to limit the scope of the patent application, and the equivalent structure or equivalent process transformations made by the specification and the drawings of the present application, or directly or indirectly applied to other related technical fields. The same is included in the scope of patent protection of this application.

Claims

A face recognition method is applied to an application server, and the method includes the steps of:

Obtaining information of the face to be recognized;

Calculating, respectively, a matching value of the to-be-classified sample in the classifier to be recognized and the classifier connected in a serial manner;

Determining whether the matching value of the to-be-identified face and each sample to be classified is less than a corresponding preset value;

If the matching value of the to-be-identified face and each sample to be classified is smaller than the corresponding preset value, input the face to be recognized into a classifier connected in parallel, wherein the parallel The classifier connected in the manner includes samples to be classified;

Arranging the samples to be classified according to the similarity with the face to be recognized, and selecting a preset number of samples to be classified with high similarity with the face to be recognized;

And assigning a corresponding weight value to the sample to be classified according to the similarity between the face to be identified and the sample to be classified, and calculating a total weight value corresponding to the sample to be classified;

The sample to be classified having the smallest total weight value is selected as the recognized face to output the sample to be classified.
The face recognition method according to claim 1, wherein the step of calculating the matching value of the sample to be classified in the classifier to be recognized and the classifier connected in a serial manner further comprises the steps of:

Calibrating the face to be identified; and

The histogram normalizes the cut face to be recognized to obtain a face histogram, so as to calculate a matching value between the face to be recognized and the sample to be classified through a face histogram.
The face recognition method according to claim 1, wherein the serially connected classifier includes at least a first classifier and a second classifier, and the method further comprises the steps of:

Calculating a first matching value of the to-be-identified face and the sample to be classified in the first classifier;

Determining whether the first matching value is greater than a first preset value; and

If the first matching value is greater than the first preset value, the sample to be classified in the first classifier is selected as the recognized human face.
The face recognition method according to claim 1, wherein the face to be recognized can be collected by any one of a camera, a digital camera, and a scanner.
The face recognition method according to claim 1, wherein the serial mode indicates that each of the respective classifiers is sample-trained in time with each different subset in time, the parallel mode representation simultaneously Different subsets perform sample training on their respective classifiers.
The face recognition method according to claim 1, wherein the minimum weight value obtained by the sample to be classified indicates that the similarity to the face to be recognized is the highest.
The face recognition method according to claim 1, wherein the classifier connected in parallel includes at least the first classifier and the second classifier.
The face recognition method according to claim 1, wherein the face is outputtable through a display or an alarm.
An application server, comprising: a memory, a processor, wherein the memory stores a face recognition system operable on the processor, the face recognition system being the processor The following steps are implemented during execution:

Obtaining information of the face to be recognized;

Calculating, respectively, a matching value of the to-be-classified sample in the classifier to be recognized and the classifier connected in a serial manner;

Determining whether the matching value of the to-be-identified face and each sample to be classified is less than a corresponding preset value;

If the matching value of the to-be-identified face and each sample to be classified is smaller than the corresponding preset value, input the face to be recognized into a classifier connected in parallel, wherein the parallel The classifier connected in the manner includes samples to be classified;

Arranging the samples to be classified according to the similarity with the face to be recognized, and selecting a preset number of samples to be classified with high similarity with the face to be recognized;

And assigning a corresponding weight value to the sample to be classified according to the similarity between the face to be identified and the sample to be classified, and calculating a total weight value corresponding to the sample to be classified;

The sample to be classified having the smallest total weight value is selected as the recognized face to output the sample to be classified.
The application server according to claim 9, wherein the step of calculating the matching value of the sample to be classified in the classifier to be identified and the classifier connected in a serial manner further comprises the steps of:

Calibrating the face to be identified; and

The histogram normalizes the cut face to be recognized to obtain a face histogram, so as to calculate a matching value between the face to be recognized and the sample to be classified through a face histogram.
The application server according to claim 9, wherein the serially connected classifier includes at least a first classifier and a second classifier, and the method further comprises the steps of:

Calculating a first matching value of the to-be-identified face and the sample to be classified in the first classifier;

Determining whether the first matching value is greater than a first preset value; and

If the first matching value is greater than the first preset value, the sample to be classified in the first classifier is selected as the recognized human face.
The application server according to claim 9, wherein the face to be recognized can be collected by any one of a camera, a digital camera, and a scanner.
The application server according to claim 9, wherein said serial mode indicates that sample training is performed on each of the respective classifiers in time by time in respective different subsets, said parallel mode representations being different at the same time The sub-sets perform sample training on their respective classifiers.
The application server according to claim 9, wherein the minimum weight value obtained by the sample to be classified indicates that the degree of similarity to the face to be recognized is the highest.
A computer readable storage medium storing a face recognition system, the face recognition system being executable by at least one processor to cause the at least one processor to perform the following steps:

Obtaining information of the face to be recognized;

Calculating, respectively, a matching value of the to-be-classified sample in the classifier to be recognized and the classifier connected in a serial manner;

Determining whether the matching value of the to-be-identified face and each sample to be classified is less than a corresponding preset value;

If the matching value of the to-be-identified face and each sample to be classified is smaller than the corresponding preset value, input the face to be recognized into a classifier connected in parallel, wherein the parallel The classifier connected in the manner includes samples to be classified;

Arranging the samples to be classified according to the similarity with the face to be recognized, and selecting a preset number of samples to be classified with high similarity with the face to be recognized;

And assigning a corresponding weight value to the sample to be classified according to the similarity between the face to be identified and the sample to be classified, and calculating a total weight value corresponding to the sample to be classified;

The sample to be classified having the smallest total weight value is selected as the recognized face to output the sample to be classified.
The computer readable storage medium according to claim 15, wherein said step of calculating a matching value of said to-be-identified face and a classifier to be classified in a serially connected classifier further comprises the steps of:

Calibrating the face to be identified; and

The histogram normalizes the cut face to be recognized to obtain a face histogram, so as to calculate a matching value between the face to be recognized and the sample to be classified through a face histogram.
The computer readable storage medium of claim 15, wherein the serially connected classifier comprises at least a first classifier and a second classifier, the method further comprising the steps of:

Calculating a first matching value of the to-be-identified face and the sample to be classified in the first classifier;

Determining whether the first matching value is greater than a first preset value; and

If the first matching value is greater than the first preset value, the sample to be classified in the first classifier is selected as the recognized human face.
The computer readable storage medium according to claim 15, wherein the face to be recognized is collected by any one of a camera, a digital camera, and a scanner.
A computer readable storage medium according to claim 15 wherein said serial mode representation sequentially performs sample training on respective respective classifiers in respective different subsets in time, said parallel mode representing simultaneous Sample training is performed on each of the corresponding classifiers in different subsets.
The computer readable storage medium according to claim 15, wherein the minimum weight value obtained by the sample to be classified indicates that the degree of similarity to the face to be recognized is the highest.