CN105117628B - Control method, device and the corresponding mobile device that file is shown in a kind of terminal - Google Patents
Control method, device and the corresponding mobile device that file is shown in a kind of terminal Download PDFInfo
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- CN105117628B CN105117628B CN201510464271.7A CN201510464271A CN105117628B CN 105117628 B CN105117628 B CN 105117628B CN 201510464271 A CN201510464271 A CN 201510464271A CN 105117628 B CN105117628 B CN 105117628B
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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
- G06F21/32—User authentication using biometric data, e.g. fingerprints, iris scans or voiceprints
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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
- G06F21/60—Protecting data
- G06F21/62—Protecting access to data via a platform, e.g. using keys or access control rules
- G06F21/6218—Protecting access to data via a platform, e.g. using keys or access control rules to a system of files or objects, e.g. local or distributed file system or database
- G06F21/6245—Protecting personal data, e.g. for financial or medical purposes
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- Health & Medical Sciences (AREA)
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Abstract
The embodiment of the present invention provides control method, device and the corresponding mobile device that file is shown in a kind of terminal.This method includes：Obtain facial image；Whether the number for judging acquired facial image is single, if so, then extracting the face information sample in facial image；Face information sample is matched with default face information template, and display secret file is determined whether according to matching result.The embodiment of the present invention is by using above-mentioned technical proposal; the safety of privacy of user file can be protected; and when can avoid the user from being appeared in before the face harvester of terminal with other people simultaneously; it is decrypted because detecting user's face information; the situation for making user's private file be seen by other people occurs, and lifts Consumer's Experience.
Description
Technical field
The present embodiments relate to the controlling party that file in file processing technology field, more particularly to a kind of terminal is shown
Method, device and corresponding mobile device.
Background technology
With the continuous development of memory technology, the memory capacity in the terminal such as computer and mobile phone constantly increases, Ren Menyi
Custom substitutes traditional paper records mode to store substantial amounts of information using Electronic saving mode.These information are typically with file
Form be stored in terminal, wherein being no lack of the private file for being related to the important informations such as property and personal lifestyle.
In order to ensure the safety of privacy of user file, document hiding function, Yong Huke can be typically provided with most terminals
Private file is arranged to by hidden state by the function, and allows user by setting the modes such as character password or graphical passwords
Password is added for hidden function setting options, correct password is only inputted, can allow the private file in hidden state
It has been shown that, prevent other people from finding or even opening.However, user needs to check the private file in hidden state every time
When, it is required to input password, process is comparatively laborious, makes troubles for user.
The content of the invention
The purpose of the embodiment of the present invention is that the control method that file is shown in a kind of terminal of proposition, device and corresponding movement are set
It is standby, to solve the problems, such as that the private file of user's storage is easily found or even opened by other people.
In a first aspect, the embodiments of the invention provide the control method that file in a kind of terminal is shown, including：
Obtain facial image；
Extract the face information sample in the facial image；
The face information sample is matched with default face information template, and determines whether to show according to matching result
Show secret file.
Second aspect, the embodiments of the invention provide the control device that file in a kind of terminal is shown, including：
Facial image acquisition module, for obtaining facial image；
Face information sample extraction module, for extracting the face information sample in the facial image；
Display control module, for the face information sample to be matched with default face information template, and according to
Matching result determines whether to show secret file.
The third aspect, the embodiments of the invention provide a kind of mobile device, the mobile device is included in the embodiment of the present invention
Terminal in the control device that shows of file.
The control program that file is shown in the terminal provided in the embodiment of the present invention, before secret file is shown, first obtain
Facial image is taken, extracts the face information sample in the facial image, by face information sample and default face information template
Matched, and display secret file is determined whether according to matching result.By using above-mentioned technical proposal, if terminal is worked as
Preceding operator is not user, nor when possessing the people of operating right, face information sample and default face information template
Will not match, will not also show secret file, so as to protect the safety of privacy of user file, and releasing process facilitate it is fast
Victory, it can effectively lift Consumer's Experience.
Brief description of the drawings
Fig. 1 is the flow chart of the control method that file is shown in a kind of terminal that the embodiment of the present invention one provides；
Fig. 2 is the flow chart of the control method that file is shown in a kind of terminal that the embodiment of the present invention two provides；
Fig. 3 is the flow chart of the control method that file is shown in a kind of terminal that the embodiment of the present invention three provides；
Fig. 4 is the flow of the control method that file is shown in a kind of preferable smart mobile phone that the embodiment of the present invention four provides
Figure；
Fig. 5 is the structured flowchart of the control device that file is shown in a kind of terminal that the embodiment of the present invention five provides.
Embodiment
Further illustrate technical scheme below in conjunction with the accompanying drawings and by embodiment.It is appreciated that
It is that specific embodiment described herein is used only for explaining the present invention, rather than limitation of the invention.Further need exist for illustrating
, for the ease of description, part related to the present invention rather than entire infrastructure are illustrate only in accompanying drawing.
It should be mentioned that some exemplary embodiments are described as before exemplary embodiment is discussed in greater detail
The processing described as flow chart or method.Although operations (or step) are described as the processing of order by flow chart,
Many of which operation can be implemented concurrently, concomitantly or simultaneously.In addition, the order of operations can be pacified again
Row.The processing can be terminated when its operations are completed, it is also possible to the additional step being not included in accompanying drawing.Institute
State processing and can correspond to method, function, code, subroutine and subprogram etc..
Embodiment one
The flow chart for the control method that file is shown, this method in a kind of terminal that Fig. 1 provides for the embodiment of the present invention one
It can be performed by the control device that file in terminal is shown, wherein the device can be realized by software and/or hardware, can be integrated in and match somebody with somebody
Have in the various terminals of image collecting device.As shown in figure 1, this method includes：
Step 101, obtain facial image.
In the present embodiment, the terminal concretely mobile device such as mobile phone, tablet personal computer and notebook computer, also may be used
For other-ends such as desktop computers.It is exemplary, described image harvester concretely camera, terminal can be integrated in
In, it can be also connected by modes such as data wire connections with terminal.
Exemplary, many ordinary files are stored with terminal, these ordinary files may include that the office of various forms is soft
Part document (such as Word, Excel and PPT), may also include the media files (such as picture, audio and video) of various forms with
And other kinds of file.Ordinary file can be chosen to be by secret file by user in advance, for example, can be in the attribute of a certain file
This document is arranged to secret file in column；Or this document can be arranged to by performing predetermined registration operation to a certain file
Secret file.
Preferably, privacy mode setting options can be increased in the terminal, specifically can be by making privacy mode application program
And it is implanted into terminal system.After user enters the option, it can voluntarily select to need to take the ordinary file for hiding protection, will select
Ordinary file added in secret listed files, then the ordinary file is chosen to be secret file.Then, user may be used also
The head portrait of oneself is shot by camera or the picture for including oneself head portrait is chosen from terminal, terminal carries from user's head portrait
Take the face information at family and generate face information template.Wherein, face information may include shape of face, the pattern feature of face and
Geometric description of structural relation etc. between face, detailed face information data and generation included in face information template
Method is not especially limited herein.
Exemplary, secret file can be given tacit consent in hidden state, prevent the people beyond user from finding.When user needs
When, display secret file operation is can trigger to enter recognition of face flow, that is, obtains facial image.It can specifically be clapped by camera
The image in the range of scape is absorbed, and therefrom extracts facial image.Preferably, when terminal is waken up or display screen is unlocked
When, secret file is in hidden state, then performs this step automatically.
Face information sample in step 102, extraction facial image.
Exemplary, the detailed face information data included in the face information sample and above-mentioned face information template
It is corresponding.
Step 103, face information sample matched with default face information template, and determined according to matching result be
No display secret file.
Exemplary, face information sample is matched with default face information template, if the match is successful, face can be explained
It is terminal user or the people for possessing operating right to the current operator of terminal, can shows that secret file is looked into for user
See.
The control method that file is shown in the terminal that the embodiment of the present invention one provides, before secret file is shown, is first obtained
Facial image is taken, extracts the face information sample in the facial image, by face information sample and default face information template
Matched, and display secret file is determined whether according to matching result.By using above-mentioned technical proposal, if terminal is worked as
Preceding operator is not user, nor when possessing the people of operating right, face information sample and default face information template
Will not match, will not also show secret file, so as to protect the safety of privacy of user file, and releasing process facilitate it is fast
Victory, it can effectively lift Consumer's Experience.
Embodiment two
The flow chart for the control method that file is shown, this implementation in a kind of terminal that Fig. 2 provides for the embodiment of the present invention two
Example is optimized based on above-described embodiment, in the present embodiment, the face information sample in step extracts facial image
Before, step is added：Whether the number for judging acquired facial image is single, if so, then extracting the facial image
In face information sample.
Further, if the number of the facial image acquired in judging is not to be single, hiding secret file.
Further, after determining to show secret file according to matching result, it also add step：When judging current
Between whether reach preset time, if so, then obtaining facial image again.
Accordingly, the method for the present embodiment comprises the following steps：
Step 201, obtain facial image.
Whether the number of the acquired facial image of step 202, judgement is single, if so, then performing step 204；Otherwise,
Perform step 203.
Exemplary, when the number for judging acquired facial image is single, then working as terminaloriented can be explained
Preceding operator only has one, is not user, is exactly other people, can continue to judge the facial image, extracts face
Face information sample in image；If it is judged that when the number of acquired facial image is multiple, then can be explained towards end
There are other people beside the current operator at end, then no matter whether current operator is user, can continue to hide secret
File, prevent secret file from being seen by other people.
Step 203, hide secret file.
Exemplary, if before this step is performed, secret file is in dispaly state, then to secret text in this step
Part is hidden；If before this step is performed, secret file is in hidden state, then secret text is kept in this step
The hidden state of part.Certainly, lock-screen is alternatively in this step, so secret file can also be avoided to be seen, but so
The use of user can be influenceed by doing, it is also possible to cause other people suspection, it is advantageous to be hiding secret file.
Face information sample in step 204, extraction facial image.
Step 205, judge whether face information sample matches with default face information template, if so, then performing step
206；Otherwise, step 203 is performed.
Step 206, display secret file.
Step 207, judge whether current time reaches preset time, step 201 is performed if so, then returning；Otherwise, continue
Judge whether current time reaches preset time.
After terminal shows secret file, user can normally check secret file, but user is during using terminal,
May also it have before other people appear in end face, if not taking certain measure, secret file is probably seen by other people
See.Exemplary, preset time can be set by system default, can be also configured by user according to own situation.Preset time
The set time concretely set, i.e., since integral point, the time after 10 seconds is preset time, is such as opened from 9 o'clock sharps
Begin, 9 points 10 seconds 0 minute, 9 points 20 seconds 0 minute, 9 points 30 seconds 0 minute ... be preset time.Preset time is specifically or upper one
Increase the time obtained by preset duration on the basis of the secondary time for obtaining facial image.For example, current time be 9 points 05 minute 03
Second, last time obtain facial image time for 9 points 05 minute it is whole, preset duration be 5 seconds, then preset time be 9 points 05 minute
05 second, it is known that current time and not up to preset time；When current time is 9: 05 05:, preset time is reached, then may be used
Step 201 is performed to obtain facial image by returning.Preferably, can in order to occur other people before finding end face in time
Preset duration will suitably be shortened, such as can be 1 second or 0.5 second etc., it might even be possible to obtain facial image in real time.
The control method that file is shown in the terminal that the embodiment of the present invention two provides, before secret file is shown, is first obtained
Facial image is taken, if other people be present beside terminal user, at least two facial images can be got, would not now be shown
Show secret file；When it is single to detect acquired facial image, then judge whether the facial image corresponds to user's sheet
People or the people for possessing operating right, determine whether to show secret file.Such scheme can protect privacy of user file
Safety, and when can avoid the user from being appeared in before the face harvester of terminal with other people simultaneously, because detecting use
Family face information and be decrypted, the situation that user's private file is seen by other people occurs, lifts Consumer's Experience.In addition,
It after determining to show secret file according to matching result, timing acquisition facial image and can still be verified, be used in user
During terminal, if there are other people before end face, it can in time find and hide secret file, further ensure
The safety of secret file.
Embodiment three
The flow chart for the control method that file is shown, this implementation in a kind of terminal that Fig. 3 provides for the embodiment of the present invention three
Example is optimized based on above-described embodiment, in the present embodiment, is judging the number of acquired facial image not to be single
When individual, multiple face information samples in multiple facial images are extracted；By multiple face information samples one by one with it is default multiple
Face information template is matched, and determines whether display secret file according to matching result.
Further, before facial image is obtained, in addition to：Drawn according to the privacy level of secret file for secret file
Graduation；Establish the corresponding relation of each face information model and the secret file of each grade.It is according to matching result determination
No display secret file, including：When at least one face information sample and default multiple face information templates mismatch,
Hide secret file；Otherwise, the lowest class in all secret files corresponding with the face information template that the match is successful is shown
Secret file.
Accordingly, the method for the present embodiment comprises the following steps：
Step 301, according to the privacy level of secret file it is secret file divided rank.
Exemplary, user is typically different to the security requirements degree of the file of oneself storage, so different secret texts
Part can correspond to different privacy levels, can be secret file divided rank according to the privacy level of secret file.This step can
Automatically performed by system or performed under the operation of user.When being performed automatically by system, can be included by detecting in file
Keyword or the automatic divided rank such as sensitive information.For example, occurs " password " word in file content or title when detecting
During sample, the secret file of higher level can be divided into automatically；, can be certainly when detecting appearance " living photo " printed words in file name
The dynamic secret file for being divided into lower grade.Preferably, can be under the operation of user in order to preferably defer to individual subscriber wish
Perform.For example, the diary of user oneself may not want that anyone sees, privacy level highest, then user can draw diary
It is divided into the secret file of highest ranking, such as one-level；The property related data of user may not want that stranger sees, but can permit
Perhaps lover or father and mother see that privacy level is higher, this class file can be divided into two level；It is good that the living photo of user is not intended to
People beyond friend sees, this class file can be divided into three-level, if user, without the secret file of other classes, three-level is most
Inferior grade.Specific grade sum is not construed as limiting.
Step 302, the corresponding relation for establishing each face information model and the secret file of each grade.
Exemplary, multiple face information templates can be previously generated, specific generating mode can refer to step 101 in embodiment
In associated description；Also can obtain in user mobile phone address list or the software such as wechat in head portrait picture, and generate corresponding
Face information template.It can be operated according to user and establish each face information model pass corresponding with the secret file of each grade
System.Such as the citing in step 301, the face information template of user oneself and one-level secret file can be established corresponding relation,
Only user can see all secret files comprising one-level secret file；Can be by the face of the lover of user or father and mother
Information model establishes corresponding relation with two level secret file, then the lover of user or father and mother cannot see that one-level secret file,
But it can see the secret file of two level and more inferior grade；Can be by the face information template of user good friend and three-level secret file
Corresponding relation is established, then the good friend of user can only see three-level secret file.Face letter corresponding to the secret file of each grade
It can be multiple to cease template, specifically can voluntarily be set by user.
Step 303, obtain facial image.
Whether the number of the acquired facial image of step 304, judgement is single, if so, then performing step 305；Otherwise,
Perform step 308.
Face information sample in step 305, extraction facial image.
Step 306, judge whether face information sample matches with one in default multiple face information templates, if
It is then to perform step 307；Otherwise, step 311 is performed.
Step 307, display and the secret file of the face information template corresponding grade that the match is successful.Terminate flow.
For example, face information sample and the face information template matches success of corresponding two level secret file, then show two level
And the secret file of more inferior grade, hide one-level secret file.
Multiple face information samples in step 308, the multiple facial images of extraction.
Step 309, multiple face information samples are matched with default multiple face information templates one by one.
Step 310, judge whether at least one face information sample with default multiple face information templates not
Matching, if so, then performing step 311；Otherwise, step 312 is performed.
Step 311, hide secret file.Terminate flow.
Step 312, the lowest class in corresponding with the face information template that the match is successful all secret files of display
Secret file.
For example, face information sample face information template matches with corresponding one-level, two level and three-level secret file respectively
Success, one-level, two level compare with three-level, and the grade of three-level secret file is minimum, then show three-level secret file, hide one-level with
Two level secret file.
The control method that file is shown in terminal provided in an embodiment of the present invention, user can be allowed to pre-set multiple faces
Information model, when needing to carry out file display, according to the face information sample got and of multiple face information templates
With the corresponding relation between situation, and face information template and secret file, the display to secret file is controlled, can root
According to the selective hidden parts secret file of user intention, while user is facilitated to share oneself with friend relatives in close relations
Part secret file, further facilitate user use, lifted Consumer's Experience.
Certainly, on the basis of above-described embodiment, there can also be another embodiment：It is according to classification that secret is literary
Part is classified, and resettles the corresponding relation between every class secret file and face information template.For example, secret file be divided into A, B,
C and D classes, a, b, c and d class face information template are corresponded to respectively.When the facial image detected is single, facial image is judged
Any class face information template belonged to, such as b classes, then only shows the secret file of B classes, hiding A, C and D class secret file (needs
When bright, the face information template of user need not establish corresponding relation with secret file class, when detecting face figure
As to be single, and when being judged as user oneself, whole secret files can be shown)；When detecting multiple facial images, judging should
Whether the facial image in multiple facial images in addition to user belongs to same class, if belonging to c classes, only shows
C class secret files, A, B and D class secret file are hidden, if being not belonging to same class, is such as belonging respectively to c classes and d classes, then hide institute
There is secret file.
Example IV
Fig. 4 is the flow of the control method that file is shown in a kind of preferable smart mobile phone that the embodiment of the present invention four provides
Figure, this method can be performed by the control device that file in terminal is shown, wherein the device can be realized by software and/or hardware,
It can be integrated in the smart mobile phone for being provided with camera.
Step 401, into privacy mode setting options.
Step 402, prompting user's input head picture.
Specifically it can be shot by camera or directly be chosen in the local folders such as photograph album.
Step 403, generation face information template.
Step 404, prompting user set secret file.
Function of browse can be provided the user, making user, easily the selection in local folders needs to be arranged to secret text
The file of part, after user completes selection operation, it is possible to provide secret listed files facilitates user to check and edit to user.
Step 405, privacy mode setting options are exited, lock mobile phone.
Exemplary, after user exits privacy mode setting options, locking mobile phone can be carried out automatically；Also can be according to user
Operation is locked.Exemplary, locking mobile phone can refer to locking display screen.
Step 406, judge whether mobile phone unlocks, if so, then performing step 407；Otherwise, continue to judge whether mobile phone solves
Lock.
Step 407, control camera shooting photo simultaneously obtain facial image.
Exemplary, when mobile phone just unlocks, general operation person can face the front camera of mobile phone, can be by preposition
Camera shoots the photo for including current operator's head portrait, and facial image is obtained from photo.
Whether the number of the acquired facial image of step 408, judgement is single, if so, then performing step 409；Otherwise,
Perform step 413.
Face information sample in step 409, extraction facial image.
Step 410, judge whether face information sample matches with default face information template, if so, then performing step
411；Otherwise, step 413 is performed.
Step 411, display secret file, perform step 412.
Step 412, judge whether current time reaches preset time, step 407 is performed if so, then returning；Otherwise, continue
Judge whether current time reaches preset time.
Step 413, hide secret file.
The control method that file is shown in the smart mobile phone that the embodiment of the present invention four provides, family can be used when unlocking mobile phone
Or using during mobile phone, it is not necessary to which whether deliberately notice at one's side has other people it can be seen that the mobile phone screen of oneself, also need not
Worry that other people can be appreciated that the secret file of oneself, it is lighter using mood during mobile phone, it can effectively lift Consumer's Experience.
Embodiment five
The structured flowchart for the control device that file is shown, the dress in a kind of terminal that Fig. 5 provides for the embodiment of the present invention five
Putting can be realized by software and/or hardware, can be integrated in the various terminals equipped with image collecting device, can be by performing terminal
The control method that middle file is shown is controlled come the display to file in terminal.As shown in figure 3, the device includes：Face figure
As acquisition module 501, face information sample extraction module 502 and display control module 503.
Wherein, facial image acquisition module 501, for obtaining facial image；Face information sample extraction module 502, use
In extracting the face information sample in facial image；Display control module 503, for face information sample and default face to be believed
Breath template is matched, and determines whether display secret file according to matching result.
The control device that show of file in the terminal that the embodiment of the present invention five provides, before secret file is shown, elder generation by
Facial image acquisition module 501 obtains facial image, then the people in facial image is extracted by face information sample extraction module 502
Face message sample, finally face information sample is matched with default face information template by display control module 503, and root
Determine whether to show secret file according to matching result.By using above-mentioned technical proposal, if the current operator of terminal is not
User, nor when possessing the people of operating right, face information sample will not match with default face information template,
Secret file will not be shown, so as to protect the safety of privacy of user file, and releasing process is convenient and swift, can effectively lift use
Experience at family.
On the basis of above-described embodiment, the device may also include number judge module, in facial image is extracted
Face information sample before, whether the number for judging acquired facial image is single；Display control module can be used specifically
In：The number for judging acquired facial image for it is single when, the face information sample in extraction individual human face image.
On the basis of above-described embodiment, display control module is particularly used in：Judging acquired facial image
When number is not single, secret file is hidden.
On the basis of above-described embodiment, face information sample extraction module is particularly used in：Judging acquired people
When the number of face image is not single, multiple face information samples in multiple facial images are extracted；Display control module is specific
It can be used for：Multiple face information samples are matched with default multiple face information templates one by one, and according to matching result
Determine whether to show secret file.
On the basis of above-described embodiment, the device may also include：Grade classification module and corresponding relation building module.Its
In, grade classification module, for being secret file division etc. according to the privacy level of secret file before facial image is obtained
Level；Corresponding relation building module, for establishing the corresponding relation of each face information model and the secret file of each grade.Phase
Answer, face information sample extraction module, specifically can be additionally used in：When at least one face information sample and default multiple faces
When information model mismatches, secret file is hidden；Otherwise, all privates corresponding with the face information template that the match is successful are shown
The secret file of the lowest class in ciphertext part.
On the basis of above-described embodiment, facial image acquisition module is particularly used in：Whether detection terminal screen unlocks
Success, if so, then obtaining facial image.
On the basis of above-described embodiment, the facial image acquisition module can be additionally used in：Determined according to matching result
After showing secret file, judge whether current time reaches preset time, if so, then obtaining facial image again.
Embodiment six
The embodiment of the present invention six provides a kind of mobile device, and the equipment includes the terminal Chinese described in the embodiment of the present invention
The control device that part is shown, it can be opened by performing file is shown in the terminal described in the embodiment of the present invention control method
Secret file.
It is exemplary, mobile device in the present embodiment concretely smart mobile phone, tablet personal computer and notebook computer etc.
Equipped with the equipment of image collecting device.
The mobile device that the embodiment of the present invention six provides, if its current operator is not user, nor possessing
During the people of operating right, face information sample will not match with default face information template, will not also show secret file, from
And the safety of privacy of user file is protected, and releasing process is convenient and swift, can effectively lift Consumer's Experience.
Pay attention to, above are only presently preferred embodiments of the present invention and institute's application technology principle.It will be appreciated by those skilled in the art that
The invention is not restricted to specific embodiment described here, can carry out for a person skilled in the art various obvious changes,
Readjust and substitute without departing from protection scope of the present invention.Therefore, although being carried out by above example to the present invention
It is described in further detail, but the present invention is not limited only to above example, without departing from the inventive concept, also
Other more equivalent embodiments can be included, and the scope of the present invention is determined by scope of the appended claims.
Claims (5)
- A kind of 1. control method that file is shown in terminal, it is characterised in that including：Automatically performed by system or performed under the operation of user and divided according to the privacy level of secret file for secret file Grade；It is secret file by detecting the keyword included in secret file or sensitive information when being performed automatically by system Divided rank；The corresponding relation of each face information model and the secret file of each grade is established, wherein, the face information includes The geometric description of structural relation between shape of face, the pattern feature of face and face；Whether detection terminal screen unlocks success, if so, then obtaining facial image；Whether the number for judging acquired facial image is single；The number for judging acquired facial image for it is single when, the face information sample in extraction individual human face image；Judge whether the face information sample matches with one in default multiple face information templates, if so, then showing With the secret file of the face information template corresponding grade that the match is successful, otherwise, secret file is hidden；Or,Judge the number of acquired facial image not as it is single when, extract multiple face information samples in multiple facial images This；The multiple face information sample is matched with default multiple face information templates one by one, it is at least one when existing When face information sample mismatches with default multiple face information templates, secret file is hidden；Otherwise, display with Secret file with the lowest class in all secret files corresponding to successful face information template.
- 2. according to the method for claim 1, it is characterised in that after determining to show secret file according to matching result, Also include：Judge whether current time reaches preset time, if so, then obtaining facial image again.
- A kind of 3. control device that file is shown in terminal, it is characterised in that including：Grade classification module, for being performed by system or being performed under the operation of user the secret journey according to secret file automatically Spend divided rank；When being performed automatically by system, by detecting the keyword included in secret file or sensitive information as private Ciphertext part divided rank；Corresponding relation building module, for establishing the corresponding relation of each face information model and the secret file of each grade, Wherein, the face information includes the geometric description of structural relation between shape of face, the pattern feature of face and face；Facial image acquisition module, whether success is unlocked for detection terminal screen, if so, then obtaining facial image；Number judge module, for judging whether the number of acquired facial image is single；Face information sample extraction module, for the number for judging acquired facial image for it is single when, extraction single people Face information sample in face image；Display control module, for judge the face information sample whether with one in default multiple face information templates Matching, if so, then display and the secret file of the face information template corresponding grade that the match is successful, otherwise, hides secret file； Or,Face information sample extraction module, for judge the number of acquired facial image not for it is single when, extract multiple Multiple face information samples in facial image；Display control module is specific, at least one face information sample and default multiple face information moulds be present for working as When plate mismatches, secret file is hidden；Otherwise, all secret files corresponding with the face information template that the match is successful are shown In the lowest class secret file.
- 4. device according to claim 3, it is characterised in that the facial image acquisition module is additionally operable to：After determining to show secret file according to matching result, judge whether current time reaches preset time, if so, then again Secondary acquisition facial image.
- 5. a kind of mobile device, it is characterised in that including as file is shown in the terminal any one of claim 3-4 Control device.
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