CN107273794A - Live body discrimination method and device in a kind of face recognition process - Google Patents

Live body discrimination method and device in a kind of face recognition process Download PDF

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Publication number
CN107273794A
CN107273794A CN201710297233.6A CN201710297233A CN107273794A CN 107273794 A CN107273794 A CN 107273794A CN 201710297233 A CN201710297233 A CN 201710297233A CN 107273794 A CN107273794 A CN 107273794A
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CN
China
Prior art keywords
identified
image
live
action
identifying code
Prior art date
Application number
CN201710297233.6A
Other languages
Chinese (zh)
Inventor
田启川
王满丽
马翠霞
王宏安
田琛晟
丁柯婧
薛慧杰
Original Assignee
北京建筑大学
中国科学院软件研究所
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Application filed by 北京建筑大学, 中国科学院软件研究所 filed Critical 北京建筑大学
Priority to CN201710297233.6A priority Critical patent/CN107273794A/en
Publication of CN107273794A publication Critical patent/CN107273794A/en

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    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K9/00Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints
    • G06K9/00221Acquiring or recognising human faces, facial parts, facial sketches, facial expressions
    • G06K9/00302Facial expression recognition
    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/30Authentication, i.e. establishing the identity or authorisation of security principals
    • G06F21/31User authentication
    • G06F21/32User authentication using biometric data, e.g. fingerprints, iris scans or voiceprints
    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/011Arrangements for interaction with the human body, e.g. for user immersion in virtual reality
    • G06F3/013Eye tracking input arrangements
    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K9/00Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints
    • G06K9/00885Biometric patterns not provided for under G06K9/00006, G06K9/00154, G06K9/00335, G06K9/00362, G06K9/00597; Biometric specific functions not specific to the kind of biometric
    • G06K9/00899Spoof detection
    • G06K9/00906Detection of body part being alive

Abstract

The invention provides the live body discrimination method in a kind of face recognition process and device.This method includes:Gather the first image of object to be identified;Brightness detection is carried out to described first image;The result detected according to brightness judges that described first image whether there is flare;If flare is not present in described first image, the object to be identified is differentiated by live body.The embodiment of the present invention by photo, video to the reflection of light the characteristics of, carry out live body discriminating by detecting the image of object to be identified with the presence or absence of flare, it is to avoid occur faking by image manipulation and video using prior art and go personation identity;By judging whether that corresponding actions can be made according to instruction further carries out live body discriminating;By judging whether that can imitate the action occurred at random in video is further carried out live body discriminating;According to whether further carrying out live body discriminating with eye control ability and thinking judgement;Improve the reliability that live body differentiates in face recognition process.

Description

Live body discrimination method and device in a kind of face recognition process
Technical field
The present invention relates to field of computer technology, and in particular to live body discrimination method and dress in a kind of face recognition process Put.
Background technology
It is raw to prevent malicious person from forging and stealing other people biological characteristic to be used for authentication in biological recognition system Thing identifying system need to have In vivo detection function, that is, judge whether the biological characteristic submitted comes from lived individual.
Biological identification technology recognition of face, fingerprint recognition, iris recognition etc. are in the substituted tradition in identity security field The trend of identity document, but biological identification technology also faces the problem of how avoiding personation phenomenon, it is topmost among these to choose War is how to carry out live body discriminating, to avoid forging other people biological specimen deception bio-identifications using photo, video, mould etc. System.
A kind of existing live body discrimination method is to determine to be reflected using infrared thermal imaging detection temperature by secondary light source Whether other object is live body.Because the penetrability of thermal imaging is preferable, if the photo of validated user is placed on itself face by disabled user In front of portion, remain able to by authentication, cause potential safety hazard occur.Realized by image processing techniques and three-dimensional reconstruction The characteristic of animated video simulation live body also can cheat face identification system by existing live body differential test.
The content of the invention
The embodiment of the present invention provides the live body discrimination method and device in a kind of face recognition process, existing for solving The problem of live body discrimination method poor reliability.
The embodiments of the invention provide the live body discrimination method in a kind of face recognition process, including:
Gather the first image of object to be identified;
Brightness detection is carried out to described first image;
The result detected according to brightness judges that described first image whether there is flare;
If flare is not present in described first image, the object to be identified is differentiated by live body.
Alternatively, methods described also includes:
Instructed to the object sending action to be identified;
Gather second image of the object to be identified after the action command is received;
Judge whether the object to be identified is made that according to the action command according to second image corresponding dynamic Make;
If the object to be identified is made that corresponding action according to the action command, the object to be identified passes through Live body differentiates.
Alternatively, second image is 3-D view.
Alternatively, it is described to be instructed to the object sending action to be identified, including:
Instructed by speech play to the object sending action to be identified,
Or,
Instructed by text prompt to the object sending action to be identified.
Alternatively, methods described also includes:
Echomimia instruction is sent at random to the object to be identified;
Gather threeth image of the object to be identified after the echomimia instruction is received;
Compare the matching degree of the expression during the corresponding expression of the 3rd image is instructed with the echomimia;
If the matching degree is more than predetermined threshold value, the object to be identified is differentiated by live body.
Alternatively, methods described also includes:
Identifying code is sent to the object to be identified;
In identifying code verification process, fourth image sequence of the image to be identified after the identifying code is received is gathered Row;
Judge that can the object to be identified complete identifying code checking according to the 4th image sequence using eye control technology;
If the object to be identified completes identifying code checking, the object to be identified is differentiated by live body.
The embodiments of the invention provide the live body identification device in a kind of face recognition process, including:
First image acquisition units, the first image for gathering object to be identified;
Brightness detection unit, for carrying out brightness detection to described first image;
First judging unit, the result for being detected according to brightness judges that described first image whether there is flare;
First discriminating unit, for when flare is not present in described first image, then the object to be identified to pass through Live body differentiates.
Alternatively, the device also includes:
Action command transmitting element, for being instructed to the object sending action to be identified;
Second image acquisition units, for gathering second figure of the object to be identified after the action command is received Picture;
Second judging unit, for judging whether the object to be identified refers to according to the action according to second image Order is made that corresponding action;
Second discriminating unit, for when the object to be identified is made that corresponding action according to the action command, Then the object to be identified is differentiated by live body.
Alternatively, in addition to:
Echomimia instruction sending unit, for sending echomimia instruction at random to the object to be identified;
3rd image acquisition units, for gathering the object to be identified the after echomimia instruction is received Three images;
Comparing unit, for comparing the expression during the corresponding expression of the 3rd image is instructed with the echomimia With degree;
3rd discriminating unit, for when the matching degree is more than predetermined threshold value, then the object to be identified to pass through live body Differentiate.
Alternatively, in addition to:
Identifying code transmitting element, for sending identifying code to the object to be identified;
4th image sequence acquisition unit, is being received in identifying code verification process, gathering the image to be identified The 4th image sequence after to the identifying code;
4th judging unit, for judging the object energy to be identified according to the 4th image sequence using eye control technology No completion identifying code checking;
4th discriminating unit, for when the object to be identified completes identifying code checking, then the object to be identified Differentiated by live body.
Live body discrimination method and device in face recognition process provided in an embodiment of the present invention, gather object to be identified First image;Brightness detection is carried out to described first image;The result detected according to brightness judges whether described first image deposits In flare;If flare is not present in described first image, the object to be identified is differentiated by live body.It is of the invention real Apply example by photo, video to the reflection of light the characteristics of, by detecting that the image of object to be identified enters with the presence or absence of flare Row live body differentiates, it is to avoid live body differentiates invalid caused by being faked in the prior art by image manipulation and video, improves live body The reliability of discriminating.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are the present invention Some embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis These accompanying drawings obtain other accompanying drawings.
Fig. 1 is the schematic flow sheet of the live body discrimination method in the face recognition process of one embodiment of the invention;
Fig. 2 is the schematic flow sheet of the live body discrimination method in the face recognition process of another embodiment of the present invention;
Fig. 3 is the structural representation of the live body identification device in the face recognition process of one embodiment of the invention.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention In accompanying drawing, clear, complete description is carried out to the technical scheme in the embodiment of the present invention, it is clear that described embodiment is A part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art The every other embodiment obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
Fig. 1 is the schematic flow sheet of the live body discrimination method in the face recognition process of one embodiment of the invention.Such as Fig. 1 Shown, the method for the embodiment includes:
S11:Gather the first image of object to be identified;
In actual applications, the figure that the opening and closing of control spot light pass through image acquisition device object to be identified Picture.
S12:Brightness detection is carried out to described first image;
It should be noted that the embodiment of the present invention to the first image carry out brightness detection.
S13:The result detected according to brightness judges that described first image whether there is flare;
It will be appreciated that the screen of photo or video playback apparatus is under the irradiation of spot light, the first image it is specific The brightness in region can be more than predetermined threshold value, produce flare.
S14:If flare is not present in described first image, the object to be identified is differentiated by live body;
It will be appreciated that general image of the live body under the irradiation of spot light is not in flare, it may be determined that treat Discriminating object is live body.
Live body discrimination method provided in an embodiment of the present invention, the characteristics of by photo, video to the reflection of light, passes through detection The image of object to be identified carries out live body discriminating with the presence or absence of flare, it is to avoid pass through image manipulation and video in the prior art Live body differentiates invalid caused by faking, and improves the reliability of live body discriminating.
It is similar with the method in Fig. 1 in a kind of optional embodiment of the embodiment of the present invention, in order to exclude three-dimensional mould The situation that type is faked, methods described also includes:
Instructed to the object sending action to be identified;
Gather second image of the object to be identified after the action command is received;
Judge whether the object to be identified is made that according to the action command according to second image corresponding dynamic Make;
If the object to be identified is made that corresponding action according to the action command, the object to be identified passes through Live body differentiates.
It should be noted that the embodiment of the present invention by object sending action to be identified instruct, such as rotary head to the left, to Turn right first-class, judge whether object to be identified completes the corresponding action of action command, excluding video playback apparatus with this plays The situation of picture.
Preferably, second image is 3-D view.
It will be appreciated that the image of the object to be identified gathered in the embodiment of the present invention is 3-D view, when to be identified right During as situation for photo or video playback apparatus broadcasting pictures, the change in depth is not present in the 3-D view of collection, can Further exclude the situation of photo or video playback apparatus broadcasting pictures.
Specifically, instructed to the object sending action to be identified, including:
Instructed by speech play to the object sending action to be identified,
Or,
Instructed by text prompt to the object sending action to be identified.
It will be appreciated that the embodiment of the present invention can be by way of speech play auditory tone cues or screen displaying character prompting Instructed to object sending action to be identified, the live body only with the corresponding sense of hearing or visual performance could perform action command.
Further, methods described also includes:
Echomimia instruction is sent at random to the object to be identified;
Gather threeth image of the object to be identified after the echomimia instruction is received;
Compare the matching degree of the expression during the corresponding expression of the 3rd image is instructed with the echomimia;
If the matching degree is more than predetermined threshold value, the object to be identified is differentiated by live body.
It should be noted that the echomimia instruction that the embodiment of the present invention is sent to object to be identified is random, it is to avoid Fake producer, which finds, to be produced after rule with regular echomimia deception live body identification device.
Further, methods described also includes:
Identifying code is sent to the object to be identified;
In identifying code verification process, fourth image sequence of the image to be identified after the identifying code is received is gathered Row;
Judge that can the object to be identified complete identifying code checking according to the 4th image sequence using eye control technology;
If the object to be identified completes identifying code checking, the object to be identified is differentiated by live body.
It should be noted that the 4th image sequence is several figures gathered in identifying code verification process to object to be identified Picture.
For example, show verification code pattern (verification code pattern for being similar to purchase train ticket), it is necessary to treat on screen Differentiate that object oneself understands requirement and finds verification code pattern, and verification code pattern is selected by eye control technological orientation, pass through The facial expressions and acts of prompting carry out identifying code confirmation.Living body faces are in addition to it can understand screen request, complete the checking of identifying code, also Need control eyes locking pattern and carry out confirmation operation with expression.
It will be appreciated that the application scenarios in order to adapt to different level of securitys, according to actual needs can reflect above-mentioned live body Other step carries out permutation and combination.Especially, for the higher application scenarios of security, step can be differentiated with above-mentioned all live bodies It is rapid that live body discriminating is carried out to object to be identified, as long as one of step can not then assert that being authenticated object does not have by differentiating Differentiated by live body.If differentiating steps by above-mentioned whole live bodies, it can be assumed that be authenticated object be with fundamental analysis, The people of thinking judgement, can also make normal facial expressions and acts, meet living body biological characteristic.
Fig. 2 is the schematic flow sheet of the live body discrimination method in the face recognition process of another embodiment of the present invention.Such as Shown in Fig. 2, the method for the embodiment of the present invention includes:
S21:Gather the first image of object to be identified;
S22:Brightness detection is carried out to described first image;
S23:The result detected according to brightness judges that described first image whether there is flare;
S24:If flare is not present in described first image, the object to be identified is differentiated by live body;
S25:Instructed to the object sending action to be identified;Gather the object to be identified receive it is described action refer to The second image after order;Judge whether the object to be identified is made that pair according to the action command according to second image The action answered;If the object to be identified is made that corresponding action according to the action command, the object to be identified leads to Cross live body discriminating;
S26:Echomimia instruction is sent at random to the object to be identified;The object to be identified is gathered receiving State the 3rd image after echomimia instruction;Compare the table during the corresponding expression of the 3rd image is instructed with the echomimia The matching degree of feelings;If the matching degree is more than predetermined threshold value, the object to be identified is differentiated by live body;
S27:Identifying code is sent to the object to be identified;In identifying code verification process, the image to be identified is gathered The 4th image sequence after the identifying code is received;Treated using eye control technology according to judging the 4th image sequence Differentiate that can object complete identifying code checking;If the object to be identified completes identifying code checking, the object to be identified Differentiated by live body.
It will be appreciated that the live body discrimination method of the embodiment of the present invention, the characteristics of using photo, video to the reflection of light, By detecting the image of object to be identified with the presence or absence of flare progress live body discriminating, it is to avoid appearance is passed through using prior art Image manipulation and video, which are faked, goes personation identity;By judging whether that can make corresponding actions according to instruction further enters Row live body differentiates;By judging whether that can imitate the action occurred at random in video is further carried out live body discriminating;According to Whether there is eye control ability and thinking judgement further to carry out live body discriminating.People can be improved by using these methods The reliability that live body differentiates in face identification process.
Fig. 3 is the structural representation of the live body identification device of one embodiment of the invention.As shown in figure 3, the present invention is implemented The device of example includes the first image acquisition units 31, brightness detection unit 32, the first judging unit 33 and the first discriminating unit 34, Specifically:
First image acquisition units 31, the first image for gathering object to be identified;
Brightness detection unit 32, for carrying out brightness detection to described first image;
First judging unit 33, the result for being detected according to brightness judges that described first image whether there is reflected light Spot;
First discriminating unit 34, for when flare is not present in described first image, then the object to be identified to lead to Cross live body discriminating.
Alternatively, the device also includes:
Action command transmitting element, for being instructed to the object sending action to be identified;
Second image acquisition units, for gathering second figure of the object to be identified after the action command is received Picture;
Second judging unit, for judging whether the object to be identified refers to according to the action according to second image Order is made that corresponding action;
Second discriminating unit, for when the object to be identified is made that corresponding action according to the action command, Then the object to be identified is differentiated by live body.
Alternatively, in addition to:
Echomimia instruction sending unit, for sending echomimia instruction at random to the object to be identified;
3rd image acquisition units, for gathering the object to be identified the after echomimia instruction is received Three images;
Comparing unit, for comparing the expression during the corresponding expression of the 3rd image is instructed with the echomimia With degree;
3rd discriminating unit, for when the matching degree is more than predetermined threshold value, then the object to be identified to pass through live body Differentiate.
Alternatively, in addition to:
Identifying code transmitting element, for sending identifying code to the object to be identified;
4th image sequence acquisition unit, is being received in identifying code verification process, gathering the image to be identified The 4th image sequence after to the identifying code;
4th judging unit, for judging the object energy to be identified according to the 4th image sequence using eye control technology No completion identifying code checking;
4th discriminating unit, for when the object to be identified completes identifying code checking, then the object to be identified Differentiated by live body.
The device of the embodiment of the present invention can be used for performing above method embodiment, and its principle is similar with technique effect, this Place is repeated no more.
Live body discriminating, face identification method and device in face recognition process provided in an embodiment of the present invention, collection are treated Differentiate the first image of object;Brightness detection is carried out to described first image;The result detected according to brightness judges described first Image whether there is flare;If flare is not present in described first image, the object to be identified is reflected by live body Not, it is to avoid occur faking by image manipulation and video using prior art and go personation identity;By the way that judge whether can Corresponding actions are made according to instruction and further carry out live body discriminating;What is occurred at random in video by judging whether to imitate is dynamic It is further carried out live body discriminating;According to whether further carrying out live body mirror with eye control ability and thinking judgement Not.The reliability that live body differentiates in face recognition process can be improved by using these methods.
It should be understood by those skilled in the art that, embodiments of the invention can be provided as method, system or computer program Product.Therefore, the present invention can be using the reality in terms of complete hardware embodiment, complete software embodiment or combination software and hardware Apply the form of example.Moreover, the present invention can be used in one or more computers for wherein including computer usable program code The computer program production that usable storage medium is implemented on (including but is not limited to magnetic disk storage, CD-ROM, optical memory etc.) The form of product.
The present invention is the flow with reference to method according to embodiments of the present invention, equipment (system) and computer program product Figure and/or block diagram are described.It should be understood that can be by every first-class in computer program instructions implementation process figure and/or block diagram Journey and/or the flow in square frame and flow chart and/or block diagram and/or the combination of square frame.These computer programs can be provided The processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing devices is instructed to produce A raw machine so that produced by the instruction of computer or the computing device of other programmable data processing devices for real The device for the function of being specified in present one flow of flow chart or one square frame of multiple flows and/or block diagram or multiple square frames.
It should be noted that term " comprising ", "comprising" or its any other variant are intended to the bag of nonexcludability Contain, so that process, method, article or equipment including a series of key elements are not only including those key elements, but also including Other key elements being not expressly set out, or also include for this process, method, article or the intrinsic key element of equipment. In the absence of more restrictions, the key element limited by sentence "including a ...", it is not excluded that including the key element Process, method, article or equipment in also there is other identical element.
In the specification of the present invention, numerous specific details are set forth.Although it is understood that, embodiments of the invention can To be put into practice in the case of these no details.In some instances, known method, structure and skill is not been shown in detail Art, so as not to obscure the understanding of this description.Similarly, it will be appreciated that disclose in order to simplify the present invention and helps to understand respectively One or more of individual inventive aspect, above in the description of the exemplary embodiment of the present invention, each of the invention is special Levy and be grouped together into sometimes in single embodiment, figure or descriptions thereof.However, should not be by the method solution of the disclosure It is interpreted into the following intention of reflection:I.e. the present invention for required protection requirement is than the feature that is expressly recited in each claim more Many features.More precisely, as the following claims reflect, inventive aspect is to be less than single reality disclosed above Apply all features of example.Therefore, it then follows thus claims of embodiment are expressly incorporated in the embodiment, Wherein each claim is in itself as the separate embodiments of the present invention.
Above example is merely to illustrate technical scheme, rather than its limitations;Although with reference to the foregoing embodiments The present invention is described in detail, it will be understood by those within the art that:It still can be to foregoing each implementation Technical scheme described in example is modified, or carries out equivalent substitution to which part technical characteristic;And these are changed or replaced Change, the essence of appropriate technical solution is departed from the spirit and scope of various embodiments of the present invention technical scheme.

Claims (10)

1. the live body discrimination method in a kind of face recognition process, it is characterised in that including:
Gather the first image of object to be identified;
Brightness detection is carried out to described first image;
The result detected according to brightness judges that described first image whether there is flare;
If flare is not present in described first image, the object to be identified is differentiated by live body.
2. according to the method described in claim 1, it is characterised in that methods described also includes:
Instructed to the object sending action to be identified;
Gather second image of the object to be identified after the action command is received;
Judge whether the object to be identified according to the action command is made that corresponding action according to second image;
If the object to be identified is made that corresponding action according to the action command, the object to be identified passes through live body Differentiate.
3. method according to claim 2, it is characterised in that second image is 3-D view.
4. method according to claim 2, it is characterised in that described to be instructed to the object sending action to be identified, bag Include:
Instructed by speech play to the object sending action to be identified,
Or,
Instructed by text prompt to the object sending action to be identified.
5. according to the method described in claim 1, it is characterised in that methods described also includes:
Echomimia instruction is sent at random to the object to be identified;
Gather threeth image of the object to be identified after the echomimia instruction is received;
Compare the matching degree of the expression during the corresponding expression of the 3rd image is instructed with the echomimia;
If the matching degree is more than predetermined threshold value, the object to be identified is differentiated by live body.
6. according to the method described in claim 1, it is characterised in that methods described also includes:
Identifying code is sent to the object to be identified;
In identifying code verification process, fourth image sequence of the image to be identified after the identifying code is received is gathered;
Judge that can the object to be identified complete identifying code checking according to the 4th image sequence using eye control technology;
If the object to be identified completes identifying code checking, the object to be identified is differentiated by live body.
7. the live body identification device in a kind of face recognition process, it is characterised in that including:
First image acquisition units, the first image for gathering object to be identified;
Brightness detection unit, for carrying out brightness detection to described first image;
First judging unit, the result for being detected according to brightness judges that described first image whether there is flare;
First discriminating unit, for when flare is not present in described first image, then the object to be identified to pass through live body Differentiate.
8. device according to claim 7, it is characterised in that also include:
Action command transmitting element, for being instructed to the object sending action to be identified;
Second image acquisition units, for gathering second image of the object to be identified after the action command is received;
Second judging unit, for judging whether the object to be identified does according to the action command according to second image Corresponding action is gone out;
Second discriminating unit, for when the object to be identified is made that corresponding action according to the action command, then institute Object to be identified is stated by live body to differentiate.
9. device according to claim 7, it is characterised in that also include:
Echomimia instruction sending unit, for sending echomimia instruction at random to the object to be identified;
3rd image acquisition units, for gathering threeth figure of the object to be identified after the echomimia instruction is received Picture;
Comparing unit, for comparing matching for the expression during the corresponding expression of the 3rd image is instructed with the echomimia Degree;
3rd discriminating unit, for when the matching degree is more than predetermined threshold value, then the object to be identified to be differentiated by live body.
10. device according to claim 7, it is characterised in that also include:
Identifying code transmitting element, for sending identifying code to the object to be identified;
4th image sequence acquisition unit, in identifying code verification process, gathering the image to be identified receiving State the 4th image sequence after identifying code;
4th judging unit, for judging that can the object to be identified complete according to the 4th image sequence using eye control technology Into identifying code checking;
4th discriminating unit, for when the object to be identified completes identifying code checking, then the object to be identified to pass through Live body differentiates.
CN201710297233.6A 2017-04-28 2017-04-28 Live body discrimination method and device in a kind of face recognition process CN107273794A (en)

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CN108256835A (en) * 2018-01-10 2018-07-06 百度在线网络技术(北京)有限公司 Implementation method, device and the server of electronics red packet
CN108494778A (en) * 2018-03-27 2018-09-04 百度在线网络技术(北京)有限公司 Identity identifying method and device
CN108875508A (en) * 2017-11-23 2018-11-23 北京旷视科技有限公司 In vivo detection algorithm update method, device, client, server and system
CN110135370A (en) * 2019-05-20 2019-08-16 北京百度网讯科技有限公司 The method and device of face In vivo detection, electronic equipment, computer-readable medium

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