CN106022024A - System login method based on image recognition and terminal - Google Patents
System login method based on image recognition and terminal Download PDFInfo
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- CN106022024A CN106022024A CN201610388442.7A CN201610388442A CN106022024A CN 106022024 A CN106022024 A CN 106022024A CN 201610388442 A CN201610388442 A CN 201610388442A CN 106022024 A CN106022024 A CN 106022024A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/30—Authentication, i.e. establishing the identity or authorisation of security principals
- G06F21/31—User authentication
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- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/50—Information retrieval; Database structures therefor; File system structures therefor of still image data
- G06F16/58—Retrieval characterised by using metadata, e.g. metadata not derived from the content or metadata generated manually
- G06F16/5866—Retrieval characterised by using metadata, e.g. metadata not derived from the content or metadata generated manually using information manually generated, e.g. tags, keywords, comments, manually generated location and time information
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- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
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Abstract
The embodiment of the invention provides a system login method based on image recognition. By means of the method, a user can log in a system through image recognition without an image acquisition device. The method includes the steps that search is conducted according to registration information obtained when the user registers, a characteristic object described by key words is obtained, and the registration information comprises the key words; whether images uploaded when the user logs in contain the characteristic object described by the key words or not is judged; if the uploaded images contain the characteristic object described by the key words, it is verified that login is legal, and login is permitted. Due to the fact that the user does not need the special image acquisition device for acquiring images and can achieve system login based on image recognition just by providing the key words capable of describing the characteristic object in the login stage, the user can log in the system in an image recognition mode without the image acquisition device, safety is high, and more universality is achieved.
Description
Technical field
The invention belongs to information security field, particularly relate to a kind of side realizing system login based on image recognition
Method and terminal.
Background technology
At present, it is achieved system login, such as, log in forum, mailbox etc. and mainly use " user name+password "
Mode carry out.Along with the development of pattern recognition, particularly image recognition technology, use fingerprint recognition, people
The image recognition technologys such as face identification also become present a kind of relatively conventional system login mode.
Realizing as a example by system login by face recognition technology, this mode is the validated user will registered in advance
Face characteristic parameter input database, when certain user logs in, first with this use of image acquisition device
The facial image at family, then analyzes and extracts the characteristic parameter of facial image, by the spy of the facial image of acquisition
The characteristic parameter levying parameter and the facial image of Input of Data compares, if both coincide, allows to log in.
Obviously, the system login mode with face recognition technology as representative, its premise is must to have image to adopt
Acquisition means or parts.This premise makes face recognition technology realize system login to not only increase image and adopt
Collection equipment cost, what is more important makes the method not have versatility, such as, gathers not having these
The login of system just cannot be realized on the equipment of image.
Summary of the invention
The embodiment of the present invention provides a kind of method and terminal realizing system login based on image recognition, to allow use
Family also can pass through image recognition login system in the case of not having image collecting device.
Embodiment of the present invention first aspect provides a kind of method realizing system login based on image recognition, described
Method includes:
Log-on message when registering according to user scans for, it is thus achieved that the characteristic body that key word describes, described note
Volume information includes described key word；
Judge whether the picture uploaded when user logs in comprises the characteristic body that described key word describes；
If described uploading pictures includes the characteristic body that described key word describes, then verify that described login is legal also
Allow to log in.
Embodiment of the present invention second aspect provides a kind of terminal, and described terminal includes:
Search unit, the log-on message in time registering according to user scans for, it is thus achieved that key word describes
Characteristic body, described log-on message includes described key word；
Judging unit, for judging whether the picture uploaded when user logs in comprises the spy that described key word describes
Levy thing；
Authentication unit, if including, for described uploading pictures, the characteristic body that described key word describes, then verifies
Described login is legal and allows to log in.
Knowable to the technical scheme that the invention described above embodiment provides, owing to user is without special image acquisition
Device gathers image, and simply needs to provide can the key word of Expressive Features thing can realize in entry stage
System login based on image recognition, therefore, the technical scheme that the embodiment of the present invention provides makes user not
Possess in the case of image collecting device also can by the way of image recognition login system, safety is high,
And more there is versatility.
Accompanying drawing explanation
Fig. 1 is the realization stream of the method realizing system login based on image recognition that the embodiment of the present invention one provides
Journey schematic diagram；
Fig. 2 is the structural representation of the terminal that the embodiment of the present invention two provides；
Fig. 3 is the structural representation of the terminal that the embodiment of the present invention three provides；
Fig. 4 is the structural representation of the terminal that the embodiment of the present invention four provides；
Fig. 5-a is the structural representation of the terminal that the embodiment of the present invention five provides；
Fig. 5-b is the structural representation of the terminal that the embodiment of the present invention six provides；
Fig. 5-c is the structural representation of the terminal that the embodiment of the present invention seven provides；
Fig. 6-a is the structural representation of the terminal that the embodiment of the present invention eight provides；
Fig. 6-b is the structural representation of the terminal that the embodiment of the present invention nine provides；
Fig. 6-c is the structural representation of the terminal that the embodiment of the present invention ten provides；
Fig. 7 is the structural representation of the terminal that the embodiment of the present invention 11 provides.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and beneficial effect clearer, below in conjunction with accompanying drawing
And embodiment, the present invention is further elaborated.Should be appreciated that described herein being embodied as
Example only in order to explain the present invention, is not intended to limit the present invention.
The embodiment of the present invention provides a kind of method realizing system login based on image recognition, and described method includes:
Log-on message when registering according to user scans for, it is thus achieved that the characteristic body that key word describes, and described registration is believed
Breath includes described key word；Judge whether the picture uploaded when user logs in comprises the spy that described key word describes
Levy thing；If described uploading pictures includes the characteristic body that described key word describes, then verify that described login is legal
And allow to log in.The embodiment of the present invention also provides for corresponding terminal.It is described in detail individually below.
Refer to accompanying drawing 1, be the side realizing system login based on image recognition of the embodiment of the present invention one offer
Method realize schematic flow sheet, the executive agent of the method can be a kind of terminal, and this terminal can be mobile phone
Deng mobile terminal, it is also possible to be the server device that can communicate with the mobile terminal such as mobile phone, such as, service
Device etc..The method of accompanying drawing 1 example mainly includes the following steps that S101 is to step S103.
S101, log-on message when registering according to user scans for, it is thus achieved that the characteristic body that key word describes.
In embodiments of the present invention, log-on message includes that key word, key word are that user provides at registration phase,
For describing some or certain characteristic body.Log-on message when registering according to user scans for, it is thus achieved that close
Before the characteristic body that keyword describes, the technical scheme that the embodiment of the present invention provides also includes receiving user in registration
The log-on message that stage provides, this log-on message include the user name key word corresponding with described user name with
And comprise the picture of the characteristic body that described key word describes；Then, user name pass corresponding with key word is preserved
The corresponding relation of the characteristics of image of system and key word and characteristic body.Such as, user A at registration phase, its
The entitled hmpeng of user of registration, then, this user oneself determines one group of key word corresponding with hmpeng,
Such as, " Fan Bingbing ", " sandy beach " and " vollyball ", and with " Fan Bingbing ", " sandy beach " and " row
Ball " characteristic body that describes of these key words is facial image or full-length picture, sandy beach and the vollyball of model ice ice, this
A little characteristic bodies can be on a pictures, it is also possible to is on different pictures, and, a key word
More than one characteristic body can also be described, i.e. can describe the different patterns of same characteristic body, a feature
Thing is to there being plurality of pictures.Such as, " Fan Bingbing " this key word can describe model ice ice positive face picture,
Side face picture or full-length picture, it is also possible to describe the head portrait of different hair style, these positive face pictures, side face picture, full-length picture
Or the head portrait of different hair style can be on different pictures.
The server of system is after receiving these log-on messages, in conjunction with image recognition technology and machine learning, knows
After not going out the characteristic body in picture, set up the corresponding relation between the characteristics of image of these characteristic bodies and key word,
The corresponding relation of user name and the characteristics of image of the corresponding relation of key word and key word and characteristic body is preserved
Data base.Such as, above-mentioned user name " hmpeng " and key word " Fan Bingbing ", " sandy beach ",
" vollyball " constitutes one group of corresponding relation, " Fan Bingbing " this key word and the various head portraits of model ice ice or complete
The characteristics of image of body picture constitutes one group of corresponding relation, " sandy beach " this key word and this characteristic body of sandy beach
Characteristics of image constitutes one group of corresponding relation, and " vollyball " this key word is special with the image of this characteristic body of vollyball
Levy one group of corresponding relation of composition.
During it should be noted that the log-on message when registering according to user scans for, due to the model of search
Enclosing can be the data base local, it is also possible to be server beyond the clouds and data base thereof, it is also possible to be mutual
Networking (Internet).Therefore, the characteristic body that the key word obtained by search is described, it is possible to greatest extent
Ground obtain the various form of this feature thing, such as, the image of front, side etc., follow-up according to log in time on
When the legitimacy of login verified by the picture passed, the accuracy of checking can be significantly improved.
As one embodiment of the invention, the log-on message provided when registering according to user scans for, and obtains
The characteristic body obtaining key word description may is that the key word provided when registering according to user scans for；If
Search Results exceedes the setting upper limit, then filter out the partial search results of predetermined quantity；Tie according to part searches
Really, it is thus achieved that the characteristic body that key word describes, wherein, the partial search results filtering out predetermined quantity can be
Automatic screening is arranged in Search Results above, it is also possible to be that whole results are presented to user, by user from
In filter out partial search results.This have the advantage that, if the result searched is too many, the most only take pre-
Determined number, such as, the characteristic body of 100 carries out next step coupling, so can save operand,
Fast and easy is mated.
As another embodiment of the present invention, log-on message also includes registering picture, is carried when registering according to user
The log-on message of confession scans for, it is thus achieved that the characteristic body that key word describes, and may is that when registering according to user
The key word provided scans for；The registration picture provided when registering according to user, enters Search Results
Row filter；According to the Search Results after described screening, extract the characteristic body that described key word describes, wherein,
The registration picture provided when registering according to user, Search Results is carried out screening can be from Search Results
Filter out and register the on all four characteristic body of characteristic body that picture comprises, it is also possible to being to filter out and registration figure
The characteristic body that sheet comprises belongs to the characteristic body of a class together, etc..Due to the present embodiment institute when registering according to user
Searching in the range of the registration picture provided, the scope searching contracting is obviously reduced, and is conducive to quickly obtaining Search Results,
Subsequent authentication is logged in the most legal in hgher efficiency.
S102, it is judged that whether the picture uploaded when user logs in comprises what the key word corresponding with user name described
Characteristic body.
Input again unlike password after inputting user name from prior art, the technical scheme that the present invention provides
It is after inputting user name, uploads the picture comprising characteristic body.It should be noted that in order to system accurately,
Identifying the characteristic body in picture rapidly, user, can be at picture when providing the picture comprising characteristic body
On the region shared by this feature thing is irised out.
As one embodiment of the invention, it is judged that whether the picture uploaded when user logs in comprises is retouched with key word
The characteristic body coupling stated can S1011 and step S1012 obtain as follows:
S1011, obtains the feature of the characteristic body that user's uploading pictures comprises and the characteristic body of key word description
Difference value between characteristics of image.
Specifically, the feature of the characteristic body that user's uploading pictures comprises and the characteristic body of key word description are obtained
Difference value between characteristics of image can realize to step S4 by S1 as follows:
S1, the characteristic body described according to key word carries out picture search, obtains the characteristic body of key word description
Characteristics of image.
S2, extracts the feature of the characteristic body that uploading pictures comprises.
S3, the characteristic body that when user being logged in, the feature of the characteristic body that uploading pictures comprises describes with key word
Image feature comparison.
Such as, for model this characteristic body of ice ice, the model ice ice facial image uploaded when can extract login
Feature, such as, color, shape and texture etc., then, the key that these features are provided with registration phase
The characteristics of image of the model ice ice facial image that word " Fan Bingbing " is corresponding carries out the comparison of feature,.
S4, obtains the feature of the characteristic body that uploading pictures comprises and the characteristics of image of the characteristic body of key word description
Between difference value..
S1012, according to the relation between the difference value obtained through step S101 and predetermined threshold value, it is judged that user
Whether the picture uploaded during login comprises the characteristic body that the key word corresponding with user name describes.
It should be noted that the bag that the picture comprising characteristic body uploaded when user registers is uploaded when logging in it
Picture containing characteristic body can not be same picture.Owing to same characteristic body there may be certain difference, example
As, it is both the positive face picture of model ice this personage of ice and side face picture there may be certain objective difference, but this
One objective difference should not constitute the obstacle of image recognition, therefore, in embodiments of the present invention, can set
One i.e. predetermined threshold value of threshold value, if the feature of the characteristic body that uploading pictures comprises provides with registration phase when logging in
The image feature comparison of same characteristic body that describes of key word, its difference value is less than predetermined threshold value, it is determined that
Uploading pictures comprises the characteristic body that the key word corresponding with user name describes.Such as, predetermined threshold value is 16%,
If the picture of the positive face picture comprising model ice ice uploaded when logging in, the model that its facial characteristics provides with registration phase
The facial characteristics of ice ice side face picture is compared, and its difference value only has 10%, it is determined that uploading pictures comprises with crucial
The model ice ice facial image that word " Fan Bingbing " describes.
S103, if uploading pictures includes the characteristic body that key word describes, then checking logs in legal and allows to step on
Record.
Knowable to the method realizing system login based on image recognition of above-mentioned accompanying drawing 1 example, due to user without
Need special image acquisition device image, and simply need to provide in entry stage can Expressive Features thing
Key word, can realize system login based on image recognition, therefore, the technology that the embodiment of the present invention provides
Scheme makes user also can log in mailbox, forum etc. in the case of not possessing image collecting device easily
System, not only reduces cost, and makes to log in various system and more have versatility.
Refer to accompanying drawing 2, be the structural representation of the terminal that the embodiment of the present invention two provides.For the ease of saying
Bright, accompanying drawing 2 illustrate only the part relevant to the embodiment of the present invention.The terminal of accompanying drawing 2 example can be attached
The executive agent of the method realizing system login based on image recognition of Fig. 1 example, it can be that mobile phone etc. moves
Dynamic terminal, it is also possible to be the server device that can communicate with the mobile terminal such as mobile phone, such as, server or
Person's partial function therein module.The terminal of accompanying drawing 2 example mainly includes search unit 201, judging unit
202 and authentication unit 203, wherein:
Search unit 201, the log-on message in time registering according to user scans for, it is thus achieved that key word is retouched
The characteristic body stated, wherein, log-on message includes described key word；
Judging unit 202 is corresponding with user name for judging whether the picture uploaded when user logs in comprises
The characteristic body that key word describes；
Authentication unit 203, if the judged result for judging unit 202 is that uploading pictures includes key word
The characteristic body described, then checking logs in legal and allows to log in.
It should be noted that in the embodiment of the figures above 2 exemplary terminal, the division of each functional module is only
To illustrate, in actual application can as required, the configuration requirement of such as corresponding hardware or software
The convenient consideration realized, and above-mentioned functions distribution being completed by different functional modules, will described terminal
Internal structure is divided into different functional modules, to complete all or part of function described above.And,
In actual application, the corresponding functional module in the present embodiment can be to be realized by corresponding hardware, it is also possible to
Being performed corresponding software by corresponding hardware to complete, such as, aforesaid judging unit, can be to have execution
Whether the picture that the aforementioned user of judgement uploads when logging in comprises the characteristic body that the key word corresponding with user name describes
Hardware, such as diagnosis apparatus, it is also possible to be able to carry out corresponding computer program thus complete aforementioned function
General processor or other hardware devices；The most aforesaid authentication unit, if judging unit can be carried out
The judged result of (or diagnosis apparatus) is the characteristic body that described uploading pictures contains that described key word describes, then
Verify that described login is legal and allow the hardware logged in, such as validator, it is also possible to be able to carry out mutually accrued
Calculation machine program thus complete the general processor of aforementioned function or other hardware devices (this specification provide
Each embodiment all can apply foregoing description principle).
The search unit 201 of accompanying drawing 2 example can include that the first keyword retrieval unit 301, first screens
Unit 302 and characteristic body acquiring unit 303, the terminal that the embodiment of the present invention three provides as shown in Figure 3,
Wherein:
First keyword retrieval unit 301, the key word provided in time registering according to user scans for；
First screening unit 302, if the Search Results for the first keyword retrieval unit 301 exceedes setting
The upper limit, then filter out the partial search results of predetermined quantity；
Characteristic body acquiring unit 303, for the partial search results filtered out according to the first screening unit 302,
Obtain the characteristic body that key word describes.
In the terminal of accompanying drawing 2 example, log-on message also includes registering picture, and search unit 201 can include
Second keyword retrieval unit the 401, second screening unit 402 and the first extraction unit 403, such as accompanying drawing 4
The terminal that the shown embodiment of the present invention four provides, wherein:
Second keyword retrieval unit 401, the key word provided in time registering according to user scans for；
Second screening unit 402, the registration picture provided in time registering according to user, to Search Results
Screen；
First extraction unit 403, for according to the Search Results after the second screening unit 402 screening, extracting
The characteristic body that key word describes.
The judging unit 202 of accompanying drawing 2 to accompanying drawing 4 any example can include difference value acquiring unit 501 He
Determine unit 502, such as the terminal that accompanying drawing 5-a to the embodiment of the present invention five to seven shown in accompanying drawing 5-c provides, its
In:
Difference value acquiring unit 501, retouches with key word for obtaining the feature of the characteristic body that uploading pictures comprises
Difference value between the characteristics of image of the characteristic body stated；
Determine unit 502, for the difference value and the predetermined threshold value that obtain according to difference value acquiring unit 501 it
Between relation, it is judged that whether the picture uploaded when user logs in comprises what the key word corresponding with user name described
Characteristic body.
To the difference value acquiring unit 501 of accompanying drawing 5-c any example, accompanying drawing 5-a can include that characteristics of image obtains
Take unit the 601, second extraction unit 602, comparing unit 603 and feature difference value acquiring unit 604, as
The terminal that accompanying drawing 6-a provides to the embodiment of the present invention eight to ten shown in accompanying drawing 6-c, wherein:
Characteristics of image acquiring unit 601, carries out picture search for the characteristic body described according to key word, obtains
Take the characteristics of image of the characteristic body that key word describes；
Second extraction unit 602, for extracting the feature of the characteristic body that uploading pictures comprises；
Comparing unit 603, the feature that the feature of the characteristic body for uploading pictures being comprised describes with key word
The characteristics of image of thing is compared；
Feature difference value acquiring unit 604, for obtaining the feature of the characteristic body that uploading pictures comprises with crucial
Difference value between the characteristics of image of the characteristic body that word describes.
Fig. 7 is the structure composition schematic diagram of another embodiment of the terminal of the present invention.As it can be seen, it can wrap
Include: input equipment 701, output device 702, communication link 703, R-T unit 704, memorizer 705
And processor 706, wherein:
Described input equipment 701, for receiving the input data of outside input terminal.In implementing, this
Input equipment 701 described in inventive embodiments can include that keyboard, mouse, light device of electrical input, sound input
Device, touch input equipment, scanner etc..
Described outut device 702, for externally exporting the output data of described terminal.In implementing, this
Output device 702 described in inventive embodiments can include display, speaker, printer etc..
Described communication link 703, for carrying out communication with other equipment.In implementing, the present invention implements
One example of the communication link 703 propagation medium described in example.Propagation medium typically can be by computer
Instructions, data structure, program module or other modulated data signals (such as carrier wave or other conveyers
System) other data materializations of form, for example, propagation medium can include wired media, the most preferential
Network or straight line connect, and propagation medium may also include wireless medium, such as sound wave, radio frequency, infrared ray etc..
In implementing, the communication link 703 of the embodiment of the present invention can be used for the data of the reception described terminal of access
Access request.
Described R-T unit 704, for by described communication link 703 to other equipment sending datas or
From other equipment receiving datas.In implementing, the R-T unit 704 of the embodiment of the present invention can include radio frequency
The transceiving devices such as antenna.
Described memorizer 705, for storing the routine data with various functions.The embodiment of the present invention is deposited
The packet of reservoir 705 storage includes Internet Service Provider's data available and the unavailable number of Internet Service Provider
According to, and other routine datas that can call and run.In implementing, the memorizer of the embodiment of the present invention
705 can be system storage, such as, volatile (such as RAM), non-volatile (such as
ROM, flash memory etc.), or both combinations.In implementing, the memorizer 705 of the embodiment of the present invention
Can also is that the external memory storage outside system, such as, disk, CD, tape etc..
Described processor 706, for calling the routine data of storage in described memorizer 705, and performs such as
Lower operation: log-on message when registering according to user scans for, it is thus achieved that the characteristic body that key word describes, institute
State log-on message and include described key word；Judge whether the picture uploaded when user logs in comprises described key word
The characteristic body described；If described uploading pictures includes the characteristic body that described key word describes, then checking is described
Log in legal and allow to log in.
Alternatively, the log-on message provided when registering according to user scans for, it is thus achieved that key word describes
Characteristic body, including: the key word provided when registering according to user scans for；Set if Search Results exceedes
Determine the upper limit, then filter out the partial search results of predetermined quantity；According to described partial search results, it is thus achieved that institute
State the characteristic body that key word describes.
Alternatively, log-on message also includes registering picture；The described registration letter provided when registering according to user
Breath scans for, it is thus achieved that the characteristic body that key word describes, including: the key provided when registering according to user
Word scans for；The registration picture provided when registering according to user, screens Search Results；According to
Search Results after described screening, extracts the characteristic body that described key word describes.
Alternatively, it is judged that whether the picture that described user uploads when logging in comprises the spy described with described key word
Levy thing, including: obtain the feature that the feature of the characteristic body that described uploading pictures comprises describes with described key word
Difference value between the characteristics of image of thing；
According to the relation between described difference value and predetermined threshold value, it is judged that the picture that described user uploads when logging in
Whether comprise the characteristic body that the key word corresponding with described user name describes.
Alternatively, the feature that the feature of the characteristic body that described uploading pictures comprises describes is obtained with described key word
Difference value between the characteristics of image of thing includes: carry out picture search according to the characteristic body that described key word describes,
Obtain the characteristics of image of the characteristic body that described key word describes；Extract the characteristic body that described uploading pictures comprises
Feature；The image of the characteristic body that the feature of the characteristic body described uploading pictures comprised describes with described key word
Feature is compared；Obtain the spy that the feature of the characteristic body that described uploading pictures comprises describes with described key word
Levy the difference value between the characteristics of image of thing.
It should be noted that the contents such as mutual, the execution process of information between each module/unit of said apparatus,
Due to apparatus of the present invention embodiment based on same design, its technique effect brought and apparatus of the present invention are implemented
Example is identical, and particular content can be found in the narration in apparatus of the present invention embodiment, and here is omitted.
One of ordinary skill in the art will appreciate that all or part of step in the various devices of above-described embodiment
The program that can be by completes to instruct relevant hardware, and this program can be stored in a computer-readable and deposit
In storage media, storage medium may include that read only memory (ROM, Read Only Memory), with
Machine access memorizer (RAM, Random Access Memory), disk or CD etc..
Above the embodiment of the present invention is provided based on image recognition realize the method for system login, device and
Terminal is described in detail, and principle and the embodiment of the present invention are carried out by specific case used herein
Illustrating, the explanation of above example is only intended to help and understands assembly of the invention and core concept thereof；With
Time, for one of ordinary skill in the art, according to the thought of the present invention, in detailed description of the invention and application
All will change in scope, in sum, this specification content should not be construed as limitation of the present invention.
Claims (10)
1. the method realizing system login based on image recognition, it is characterised in that described method includes:
Log-on message when registering according to user scans for, it is thus achieved that the characteristic body that key word describes, described log-on message includes described key word；
Judge whether the picture uploaded when user logs in comprises the characteristic body that described key word describes；
If described uploading pictures includes the characteristic body that described key word describes, then verify that described login is legal and allow to log in.
2. the method for claim 1, it is characterised in that the described log-on message provided when registering according to user scans for, it is thus achieved that the characteristic body that key word describes, including:
The key word provided when registering according to user scans for；
If Search Results exceedes the setting upper limit, then filter out the partial search results of predetermined quantity；
According to described partial search results, it is thus achieved that the characteristic body that described key word describes.
3. the method for claim 1, it is characterised in that described log-on message also includes registering picture；The described log-on message provided when registering according to user scans for, it is thus achieved that the characteristic body that key word describes, including:
The key word provided when registering according to user scans for；
The registration picture provided when registering according to user, screens Search Results；
According to the Search Results after described screening, extract the characteristic body that described key word describes.
4. the method as described in claims 1 to 3 any one, it is characterised in that whether the described picture judging that described user uploads when logging in comprises the characteristic body described with described key word, including:
Obtain the difference value between the characteristics of image of the feature of the characteristic body that described uploading pictures comprises and the characteristic body of described key word description；
According to the relation between described difference value and predetermined threshold value, it is judged that whether the picture that described user uploads when logging in comprises the characteristic body that the key word corresponding with described user name describes.
5. method as claimed in claim 4, it is characterised in that the difference value between the characteristics of image of the characteristic body that the feature of the characteristic body that the described uploading pictures of described acquisition comprises and described key word describe includes:
Carry out picture search according to the characteristic body that described key word describes, obtain the characteristics of image of the characteristic body that described key word describes；
Extract the feature of the characteristic body that described uploading pictures comprises；
The characteristics of image of the characteristic body that the feature of the characteristic body described uploading pictures comprised describes with described key word is compared；
Obtain the difference value between the characteristics of image of the feature of the characteristic body that described uploading pictures comprises and the characteristic body of described key word description.
6. a terminal, it is characterised in that described terminal includes:
Search unit, the log-on message in time registering according to user scans for, it is thus achieved that the characteristic body that key word describes, described log-on message includes described key word；
Judging unit, for judging whether the picture uploaded when user logs in comprises the characteristic body that described key word describes；
Authentication unit, if including, for described uploading pictures, the characteristic body that described key word describes, then verifies that described login is legal and allows to log in.
7. terminal as claimed in claim 6, it is characterised in that described search unit includes:
First keyword retrieval unit, the key word provided in time registering according to user scans for；
First screening unit, if the Search Results for described first keyword retrieval unit exceedes the setting upper limit, then filters out the partial search results of predetermined quantity；
Characteristic body acquiring unit, for according to described partial search results, it is thus achieved that the characteristic body that described key word describes.
8. terminal as claimed in claim 6, it is characterised in that described log-on message also includes registering picture, and described search unit includes:
Second keyword retrieval unit, the key word provided in time registering according to user scans for；
Second screening unit, the registration picture provided in time registering according to user, screens Search Results；
First extraction unit, for according to the Search Results after described screening, extracting the characteristic body that described key word describes.
9. the terminal as described in claim 6 to 8 any one, it is characterised in that described judging unit includes:
Difference value acquiring unit, the difference value between the characteristics of image of the characteristic body that the feature and described key word for obtaining the characteristic body that described uploading pictures comprises describes；
Determine unit, for according to the relation between described difference value and predetermined threshold value, it is judged that whether the picture that described user uploads when logging in comprises the characteristic body that the key word corresponding with described user name describes.
10. terminal as claimed in claim 9, it is characterised in that described difference value acquiring unit includes:
Characteristics of image acquiring unit, carries out picture search for the characteristic body described according to described key word, obtains the characteristics of image of the characteristic body that described key word describes；
Second extraction unit, for extracting the feature of the characteristic body that described uploading pictures comprises；
Comparing unit, the characteristics of image of the characteristic body that the feature of the characteristic body for described uploading pictures being comprised describes with described key word is compared；
Feature difference value acquiring unit, the difference value between the characteristics of image of the characteristic body that the feature and described key word for obtaining the characteristic body that described uploading pictures comprises describes.
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