CN106919250A - A kind of based reminding method and device - Google Patents
A kind of based reminding method and device Download PDFInfo
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- CN106919250A CN106919250A CN201511000773.0A CN201511000773A CN106919250A CN 106919250 A CN106919250 A CN 106919250A CN 201511000773 A CN201511000773 A CN 201511000773A CN 106919250 A CN106919250 A CN 106919250A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input 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
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/011—Arrangements for interaction with the human body, e.g. for user immersion in virtual reality
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/16—Human faces, e.g. facial parts, sketches or expressions
- G06V40/161—Detection; Localisation; Normalisation
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Abstract
The invention provides a kind of based reminding method and device, the terminal with integrated camera is applied to, the based reminding method includes：User images information is gathered by the integrated camera；The viewed status of user are determined according to the user images information, wherein, the viewed status at least include：User is to the one kind in the viewing posture of the distance between terminal screen, the visual angle of user's viewing terminal screen and user；Judge whether the viewed status of user meet the alert condition of bad viewed status；If meeting alert condition, reminder message is sent.Above-mentioned technical proposal provided in an embodiment of the present invention can be reminded long-time in closely viewing terminal screen or for a long time in the bad user for watching posture etc., realize health viewing.
Description
Technical field
The present invention relates to electronic communication field, more particularly to a kind of based reminding method and device.
Background technology
As the various terminal devices with screen are increasingly popularized, people are more and more logical by terminal device
News, online, amusement, particularly people cause people for television set and the degree of dependence more and more higher of computer
Greatly increased in face of the time of terminal device screen, but for a long time eyesight can have been damaged in face of terminal device
Evil, if closely viewing or long-time, in incorrect posture viewing etc., can seriously cause to regard for a long time again
Power is damaged, and is even more seriously especially for for the children for lacking ability of self control, therefore prevent user for a long time
Closely viewing or long-time are a problem demanding prompt solutions in incorrect posture viewing etc..
The content of the invention
A kind of based reminding method and device are the embodiment of the invention provides, can closely be watched for a long time in user
Or reminded when for a long time in incorrect posture viewing etc., realize health viewing.
In order to solve the above-mentioned technical problem, the present invention is adopted the following technical scheme that：
According to the one side of the embodiment of the present invention, there is provided a kind of based reminding method, it is applied to be taken the photograph with integrated
As the terminal of head, wherein, the based reminding method includes：
User images information is gathered by the integrated camera；
The viewed status of user are determined according to the user images information, wherein, the viewed status are at least wrapped
Include：Viewing appearance of the user to the distance between terminal screen, the visual angle of user's viewing terminal screen and user
One kind in gesture；
Judge whether the viewed status of user meet the alert condition of bad viewed status；
If meeting alert condition, reminder message is sent.
Further, it is described the step of determine the viewed status of user according to the user images information in, root
Determine that user arrives the distance between terminal screen according to the user images information, wherein according to the user images
The step of information determines user to the distance between terminal screen includes：
According to human face detection tech, the user face width information in the user images information is determined；
According to user face width information, determine that user face width is right to user's present position institute
The accounting value of the wide viewing angle of the integrated camera answered；
According to the accounting value and default first computing formula that determine：L=(w/2k1) × cot (α/2),
Calculate user face to the distance between terminal screen value；
Wherein, L represents user face to the distance between terminal screen value, and w represents default standard face
Width value, k1Represent user's face's width to the integrated camera corresponding to user's present position
The accounting value of wide viewing angle, α represents the visual angle value of the integrated camera.
Further, determination user's face's width is to described integrated corresponding to user's present position
The step of accounting value of the wide viewing angle of camera, includes：
Determine that user face width is taken the photograph to described integrated corresponding to user's present position by gridding method
As the accounting value of the wide viewing angle of head.
Further, whether the viewed status for judging user meet the alert condition of bad viewed status
Step includes：
It is worth according to the distance between user face to terminal screen, judges whether to remind；
Accordingly, include if described meet alert condition, the step of send reminder message：
If user face is less than predeterminable range value to the distance between terminal screen value, start timer timing；
After the timing time of the timer is reached, if user face is worth still to the distance between terminal screen
Less than predeterminable range value, then reminder message is sent.
Further, it is described the step of determine the viewed status of user according to the user images information in, root
The visual angle of user's viewing terminal screen is determined according to the user images information, wherein believing according to the user images
The step of breath determines the visual angle of user's viewing terminal screen includes：
According to the user images information, user face to the distance value of terminal screen is determined；
Determine face center to the distance value of the visual angle bisector of the integrated camera；
Distance value and face center regarding to the integrated camera according to user face to terminal screen
The distance value of angular bisector, using default 4th computing formula：β=arctan (l/L), calculates user and sees
See the visual angle angle of terminal screen；
Wherein, β represents the visual angle angle of user's viewing terminal screen, and l represents face center to described integrated
The distance value of the visual angle bisector of camera, L represents user face to the distance value of terminal screen.
Further, it is described to determine face center to the distance value of the visual angle bisector of the integrated camera
The step of include：
Face center to the distance value of the visual angle bisector of the integrated camera is determined by gridding method.
Further, whether the viewed status for judging that user is current meet the prompting bar of bad viewed status
The step of part, includes：
According to the visual angle angle of user's viewing terminal screen, judge whether to remind；
Accordingly, include if described meet alert condition, the step of send reminder message：
If the visual angle angle of user's viewing terminal screen is more than predetermined angle, start timer timing；
After the timing time of the timer reaches, if the visual angle angle of user's viewing terminal screen still greater than
Predetermined angle, then send reminder message.
Further, it is described the step of determine the viewed status of user according to the user images information in, root
The viewing posture of user is determined according to the user images information, wherein determining to use according to the user images information
The step of viewing posture at family, includes：
According to human face detection tech, the user face width information in the user images information is obtained；
According to Binarization methods, the user's body profile information in the user images information is obtained；
According to user face width information and user's body profile information, the position of user face and body is determined
Relation.
Further, whether the viewed status for judging user meet the alert condition of bad viewed status
Step includes：
According to user face and the position relationship of body, judge whether to remind.
Further, include if described meet alert condition, the step of send reminder message：
If user face is horizontal with the position relationship of body, start timer timing；
After the timing time of the timer reaches, if user face is still horizontal with the position relationship of body,
Then send reminder message.
Further, include if described meet alert condition, the step of send reminder message：
If user face is longitudinal direction with the position relationship of body, it is determined that user face width and body width
Ratio value；
If user face width is more than or equal to preset ratio value with the ratio value of body width, start timing
Device timing；
After the timing time of the timer reaches, if the ratio value of user face width and body width is still
More than or equal to preset ratio value, then reminder message is sent.
According to the other side of the embodiment of the present invention, there is provided a kind of alarm set, it is applied to integrated
The terminal of camera, wherein, the alarm set includes：
Acquisition module, for gathering user images information by the integrated camera；
Determining module, the viewed status for determining user according to the user images information, wherein, it is described
Viewed status at least include：User to the distance between terminal screen, user's viewing terminal screen visual angle with
And the one kind in the viewing posture of user；
Whether judge module, the viewed status for judging user meet the alert condition of bad viewed status；
Prompting module, for when alert condition is met, sending reminder message.
Further, the determining module includes：
First determining unit, for according to human face detection tech, determining the user in the user images information
Face's width information；
Second determining unit, for according to user face width information, determine user face width to
The accounting value of the wide viewing angle of the integrated camera corresponding to the present position of family；
First computing unit, for according to the accounting value and default first computing formula for determining：
L=(w/2k1) × cot (α/2), calculates user face to the distance between terminal screen value；
Wherein, L represents user face to the distance between terminal screen value, and w represents default standard face
Width value, k1Represent user's face's width to the integrated camera corresponding to user's present position
The accounting value of wide viewing angle, α represents the visual angle value of the integrated camera.
Further, second determining unit specifically for：User face width pair is determined by gridding method
The accounting value of the wide viewing angle of the integrated camera corresponding to user's present position.
Further, the judge module includes：
First judging unit, for according to the distance between user face to terminal screen be worth, judge whether into
Row is reminded；
Accordingly, the prompting module includes：
First timing unit, for being less than predeterminable range value when the distance between user face to terminal screen value
When, start timer timing；
First reminding unit, for after the timing time of the timer is reached, if user face is to terminal
The distance between screen is worth still less than predeterminable range value, then send reminder message.
Further, the determining module includes：
3rd determining unit, for according to the user images information, determining that user face arrives terminal screen
Distance value；
4th determining unit, for determine face center to the visual angle bisector of the integrated camera away from
From value；
Second computing unit, for the distance value and face center according to user face to terminal screen to institute
The distance value of the visual angle bisector of integrated camera is stated, using default 4th computing formula：
β=arctan (l/L), calculates the visual angle angle of user's viewing terminal screen；
Wherein, β represents the visual angle angle of user's viewing terminal screen, and l represents face center to described integrated
The distance value of the visual angle bisector of camera, L represents user face to the distance value of terminal screen.
Further, the 4th determining unit specifically for：Face center to institute is determined by gridding method
State the distance value of the visual angle bisector of integrated camera.
Further, the judge module includes：
Second judging unit, for the visual angle angle according to user's viewing terminal screen, judges whether to carry
Wake up；
Accordingly, the reminding unit includes：
Second timing unit, for when the visual angle angle of user's viewing terminal screen is more than predetermined angle, opening
Dynamic timer timing；
Second reminding unit, for after the timing time of the timer reaches, if user's viewing terminal screen
The visual angle angle of curtain then sends reminder message still greater than predetermined angle.
Further, the determining module includes：
First acquisition unit, for according to human face detection tech, obtaining the user in the user images information
Face's width information；
Second acquisition unit, for according to Binarization methods, obtaining the user's body in the user images information
Body profile information；
5th determining unit, for according to user face width information and user's body profile information, it is determined that with
Family face and the position relationship of body.
Further, the judge module includes：
3rd judging unit, for the position relationship according to user face and body, judges whether to remind.
Further, the prompting module includes：
3rd timing unit, if being horizontal for the position relationship of user face and body, starts timer
Timing；
3rd reminding unit, for after the timing time of the timer reaches, if user face and body
Position relationship still for laterally, then send reminder message.
Further, the prompting module includes：
6th determining unit, for when the position relationship of user face and body is for longitudinal direction, determining user's face
The ratio value of portion's width and body width；
4th timing unit, for the ratio value when user face width and body width more than or equal to default
During ratio value, start timer timing；
4th reminding unit, for after the timing time of the timer reaches, if user face width and body
The ratio value of width then sends reminder message still greater than or equal to preset ratio value.
The beneficial effects of the invention are as follows：
Above-mentioned technical proposal, according to the user images information that the integrated camera being arranged in terminal is gathered,
Determine the viewed status of user, when it is bad viewed status that the viewed status of user are determined in analysis, terminal
Reminder message is sent, user is reminded, so that user adjusts viewed status in time, realize health viewing,
Additionally, the embodiment of the present invention gathers image information using existing structure-integrated camera in terminal, can
The utilization rate of integrated camera is lifted, product function is enriched, the practicality of product is improved.
Brief description of the drawings
Fig. 1 represents the flow chart of the based reminding method that first embodiment of the invention is provided；
Fig. 2 represents the flow chart of the based reminding method that second embodiment of the invention is provided；
Fig. 3 represents the method that the user that second embodiment of the invention is provided voluntarily sets face's wide reference value
Flow chart；
Fig. 4 represents the computation structure schematic diagram that second embodiment of the invention is provided；
Fig. 5 represents the flow chart of the based reminding method that third embodiment of the invention is provided；
Fig. 6 represents the computation structure schematic diagram that third embodiment of the invention is provided；
Fig. 7 represents the flow chart of the based reminding method that fourth embodiment of the invention is provided；
Fig. 8 represents the block diagram of the alarm set that fifth embodiment of the invention is provided；
Fig. 9 represents another block diagram of the alarm set that fifth embodiment of the invention is provided.
Specific embodiment
Exemplary embodiment of the invention is more fully described below with reference to accompanying drawings.Although being shown in accompanying drawing
Exemplary embodiment of the invention, it being understood, however, that may be realized in various forms the present invention without should be by
Embodiments set forth here is limited.Conversely, there is provided these embodiments are able to be best understood from this
Invention, and can by the scope of the present invention it is complete convey to those skilled in the art.
First embodiment
A kind of based reminding method is the embodiment of the invention provides, the terminal with integrated camera is applied to, referring to
Fig. 1, the based reminding method includes：
Step S101, by integrated camera gather user images information.
Wherein, integrated camera described here is generally located on terminal screen top middle position.
Step S102, the viewed status that user is determined according to user images information.
In this step, the image information gathered according to integrated camera determines the viewed status of user, wherein,
Viewed status at least include：User to the distance between terminal screen, user's viewing terminal screen visual angle with
And the one kind in the viewing posture of user.
Step S103, judge whether the viewed status of user meet the alert condition of bad viewed status.
Wherein, bad viewed status at least include：User is less than predeterminable range to the distance between terminal screen
Value (i.e. user closely viewing terminal screen), the visual angle angle of user's viewing terminal screen are more than preset angle
Degree (i.e. user's stravismus terminal screen) and user are with incorrect posture viewing terminal screen (such as recumbency
Viewing etc.) in one kind.
Wherein, the visual angle of user's viewing terminal screen refer to the vertical direction institute of user's sight line and terminal screen etc. into
Angle.
If step S104, meeting alert condition, reminder message is sent.
When it is determined that the viewed status of user meet the alert condition of bad viewed status, terminal sends prompting and disappears
Breath, reminds viewing user.
Wherein, reminder message can be display alarm on a terminal screen, such as word remind, pattern remind or
It is that word plus pattern are reminded etc., or carry out voice by the loudspeaker of terminal or alarm sound is reminded,
Such as reminded in the way of voice broadcast viewing user or with specifically remind sound reminded (as " dichloro-diphenyl-dichlorothane "
Sound).
The user images information that the embodiment of the present invention is gathered according to the integrated camera being arranged in terminal, really
Determine the viewed status of user, when it is bad viewed status that the viewed status of user are determined in analysis, terminal hair
Go out reminder message, user reminded, so that user adjusts viewed status in time, realize health viewing,
Additionally, the embodiment of the present invention gathers image information using existing structure-integrated camera in terminal, can
The utilization rate of integrated camera is lifted, product function is enriched, the practicality of product is improved.
In embodiments of the present invention, generality is described to based reminding method, for understanding more further
Based reminding method provided in an embodiment of the present invention, is further explained explanation with three specific embodiments below.
Second embodiment
A kind of based reminding method is the embodiment of the invention provides, the terminal with integrated camera is applied to, referring to
Fig. 2, the based reminding method includes：
Step S201, by integrated camera gather user images information.
Step S202, according to human face detection tech, determine the user face width letter in user images information
Breath.
In this step, by human face detection tech, whether there is face in detection user images information, if
Be, then obtain user face's width information (it should be noted that, now not specific user face is wide
Number of degrees value, simply a position substantially).
Wherein, human face detection tech refers to the image given for any one width, using certain strategy to it
Scan for if it is being returned to determine whether containing face position and the size of face.Due to face
Detection technique is method commonplace at present, has many ready-made softwares it is achieved that therefore the present invention is real
The subsequent algorithm application for applying example is set up on this basis, can't increase system cost.
Step S203, according to user face width information, determine that user face width is currently located to user
The accounting value of the wide viewing angle of the integrated camera corresponding to position.
Wherein, by gridding method user face width can be determined to integrated corresponding to user's present position
The accounting value of the wide viewing angle of camera, that is, draw a fixed number in the user images of integrated camera collection
The grid of amount, determines that user face grid number shared in the direction of the width and whole image exist in user images
Shared grid number, then does ratio by the two on width, the numerical value for obtaining as actual user face
Accounting value of the width to the wide viewing angle of the integrated camera corresponding to user's present position.Its principle is：
Although user face developed width is absolute figure, will not change, as user is closer or far from collection
Into camera, in the user images of integrated camera collection, the ratio regular meeting shared in the picture of user face
Become larger or diminish, therefore user face width ratio shared in the picture is a relative value, meeting
Change, so as to can determine that actual user face width is current to user by gridding method according to above-mentioned principle
The accounting value of the wide viewing angle of the integrated camera corresponding to position.
Step S204, accounting value and default first computing formula according to determination：L=(w/2k1)×
Cot (α/2), calculates user face to the distance between terminal screen value.
Wherein, L represents user face to the distance between terminal screen value, and w represents default standard face
Width value, k1Represent visual angle of user's face's width to the integrated camera corresponding to user's present position
The accounting value of width, α represents the visual angle value of integrated camera.
Wherein, general default standard face width value w pre-sets before being dispatched from the factory for terminal, w's
Value can be the face width average value chosen according to previous experiences value, but in order to improve computational accuracy, eventually
End subscriber can also voluntarily set face's wide reference value according to actual needs, such as in order to monitor child in family
Viewed status, can be using face's width of child in family as face's wide reference value, so can be more smart
The true child that calculates arrives the distance between terminal screen, thus improve monitoring precision (in family other
Used when member carries out viewed status monitoring, in calculating process is still the face set before terminal is dispatched from the factory
Width value).Wherein, as shown in figure 3, user voluntarily sets the realization of face's width value according to actual needs
Mode is specifically included：
Step S301, by integrated camera gather designated personal image information.
Step S302, according to human face detection tech, determine the designated person face in designated personal image information
Portion's width information.
Step S303, according to designated person face width information, determine designated person face width with it is integrated
The accounting value of the wide viewing angle of integrated camera at the predeterminable range of camera front.
Wherein, by gridding method designated person face width can be determined with integrated camera front predeterminable range
Locate the accounting value of the wide viewing angle of integrated camera, its particular content refers to the description about step S203.
Step S304, according to default second computing formula：X=2s × tan (α/2), calculates integrated taking the photograph
As the wide viewing angle value of integrated camera at the predeterminable range of head front.
Wherein, x represents the wide viewing angle value of integrated camera at the predeterminable range of integrated camera front, s
Integrated camera front predeterminable range value is represented, α represents the visual angle value of integrated camera, referring to Fig. 4,
It is computation structure schematic diagram.
Step S305, the wide viewing angle value according to accounting value and integrated camera, using the default 3rd meter
Calculate formula：W=k2X, calculates the width value of standard face.
Wherein, k2Represent integrated at predeterminable range immediately ahead of designated person face's width and integrated camera to take the photograph
As the accounting value of the wide viewing angle of head.
So, by step S301~step S305, it is wide that user just can voluntarily set face as needed
Degree reference value.
Step S205, according to the distance between user face to terminal screen be worth, judge whether to remind.
Typically, if user face to the distance between terminal screen value less than predeterminable range value when, enter step
Rapid S206, if user face is more than or equal to predeterminable range value to the distance between terminal screen value, weighs
It is new to enter step S201.
If the distance between step S206, user face to terminal screen value are less than predeterminable range value, open
Dynamic timer timing.
Wherein, in timer timing course, if detecting user face to the distance between terminal screen value
More than or equal to predeterminable range value, then timer stops timing, and empties timer.
Step S207, when timer timing time reach after, if user face is between terminal screen
Distance value then sends reminder message still less than predeterminable range value.
The user images information that the embodiment of the present invention is gathered according to the integrated camera being arranged in terminal, really
Determine user and arrive the distance between terminal screen, when analysis determines that user is small to the distance between terminal screen value
When predeterminable range value, user is reminded, so that user adjusts viewing distance in time, realize outlook on health
See, additionally, the embodiment of the present invention gathers image information using existing structure-integrated camera in terminal,
The utilization rate of integrated camera can be lifted, product function is enriched, the practicality of product is improved.
3rd embodiment
A kind of based reminding method is the embodiment of the invention provides, the terminal with integrated camera is applied to, referring to
Fig. 5, the based reminding method includes：
Step S501, by integrated camera gather user images information.
Step S502, according to user images information, determine user face to the distance value of terminal screen.
User face to the implementation and step in second embodiment of terminal distance value is determined in this step
User face described in S202~step S204 is identical to terminal distance value implementation, specific implementation
Step S202~step S204 is referred to, embodiment of the present invention contrast is just no longer repeated.
Step S503, determine face center to the distance value of the visual angle bisector of integrated camera.
Wherein, face center can be regarded as the focus of two an eye line.
Preferably, face center to the distance of the visual angle bisector of integrated camera can be determined by gridding method
Value, that is, the grid of fixed data is drawn in user images, it is then determined that face center is to integrated camera
Visual angle bisector between grid number, the length of each grid is finally multiplied by with grid number, then can obtain people
Distance value of the face central point to the visual angle bisector of integrated camera.Although in gridding, each grid
Length value is not aware that, but wide due to being previously provided with the face that standard face width value or user voluntarily set
Degree reference value, and can determine that user face grid number shared in the direction of the width is to whole figure in user images
The accounting value of picture grid number shared in the direction of the width, therefore the length value of each grid can be calculated, from
And face center to the distance value of the visual angle bisector of integrated camera can be determined by gridding method.
Step S504, according to the distance value and face center of user face to terminal screen to integrated shooting
The distance value of the visual angle bisector of head, using default 4th computing formula：β=arctan (l/L), calculates
The visual angle angle of user's viewing terminal screen.
Wherein, β represents the visual angle angle of user's viewing terminal screen, and l represents face center to integrated shooting
The distance value of the visual angle bisector of head, L represents user face to the distance value of terminal screen, referring to Fig. 6,
It is computation structure schematic diagram.
Step S505, the visual angle angle according to user's viewing terminal screen, judge whether to remind.
Typically, if the visual angle angle of user's viewing terminal screen is more than predeterminable range value, into step
S506, if the visual angle angle of user's viewing terminal screen is less than or equal to predeterminable range value, reenters step
Rapid S501.
If the visual angle angle of step S506, user's viewing terminal screen is more than predetermined angle, start timing
Device timing.
Wherein, in timer timing course, if the visual angle angle for detecting user's viewing terminal screen is less than
Or equal to preset angle angle value, then timer stops timing, and empties timer.
Step S507, after the timing time of timer reaches, if the visual angle angle of user's viewing terminal screen
Degree then sends reminder message still greater than predetermined angle.
The user images information that the embodiment of the present invention is gathered according to the integrated camera being arranged in terminal, really
The visual angle angle of user's viewing terminal screen is determined, when the visual angle angle of user's viewing terminal screen is determined in analysis
During more than predeterminable range value, user is reminded, so that user adjusts viewing angle in time, realize health
Viewing, additionally, the embodiment of the present invention gathers image letter using existing structure-integrated camera in terminal
Breath, can lift the utilization rate of integrated camera, enrich product function, improve the practicality of product.
Fourth embodiment
A kind of based reminding method is the embodiment of the invention provides, the terminal with integrated camera is applied to, referring to
Fig. 7, the based reminding method includes：
Step S701, by integrated camera gather user images information.
Step S702, according to human face detection tech, obtain the user face width letter in user images information
Breath.
In this step, by human face detection tech, whether there is face in detection user images information, if
Be, then obtain user face's width information (it should be noted that, now not specific user face is wide
Number of degrees value, simply a position substantially).
Step S703, according to Binarization methods, obtain the user's body profile information in user images information.
Wherein, the binaryzation of image, whole image is exactly showed significantly there was only black and white vision effect
Really.The ambient noise in user images can be removed by Binarization methods, frame selects body contour.
Step S704, according to user face width information and user's body profile information, determine user face
With the position relationship of body.
Wherein, user face at least includes with the position relationship of body：Longitudinal relation and horizontal relationship, longitudinal direction
Relation represents the state of user in standing or being seated etc., and horizontal relationship is (by the feelings with certain angle of inclination
Condition is considered as also horizontal relationship) represent that user is in state of couching.
Step S705, the position relationship according to user face and body, judge whether to remind.
Typically, if user face is horizontal with the position relationship of body, into step S706, if user
Face is longitudinal direction with the position relationship of body, then into step S708.
If the position relationship of step S706, user face and body is horizontal, start timer timing.
Wherein, if user face is horizontal with the position relationship of body, then it represents that user is in the viewing shape that couches
State, then start timer timing, in timing course, if detecting the position relationship of user face and body
Longitudinal direction is changed to, then into step S708.
Step S707, after the timing time of timer reaches, if the position relationship of user face and body
Still it is laterally, then to send reminder message.
If the position relationship of step S708, user face and body is longitudinal direction, it is determined that user face width
With the ratio value of body width.
If user face is longitudinal direction with the position relationship of body, represent that user is in the state being seated, if just
True sitting posture, face's width should be less than the width of body part, if sitting posture compares distortion, face's width
It is likely larger than or is substantially equal to the width of body part.
If the ratio value of step S709, user face width and body width is more than or equal to preset ratio value,
Then start timer timing.
In order to improve judgement accuracy, a preset ratio value is the embodiment of the invention provides, according to the default ratio
Example value and user face width and the magnitude relationship of the ratio value of body width, determining the viewing posture of user is
No is bad viewing posture, wherein, preset ratio value is a ratio value according to determined by previous experiences value.
Wherein, in timer timing course, if detecting the ratio value of user face width and body width
Less than preset ratio value, then timer stops timing, and empties timer.
Step S710, after the timing time of timer reaches, if user face width and body width
Ratio value then sends reminder message still greater than or equal to preset ratio value.
The user images information that the embodiment of the present invention is gathered according to the integrated camera being arranged in terminal, really
The viewing posture of user is determined, after the viewing posture of user is determined in analysis, if viewing posture is bad viewing
During posture, user is reminded, adjust viewing posture in time so as to user, realize health viewing, additionally,
The embodiment of the present invention gathers image information using existing structure-integrated camera in terminal, can lift collection
Into the utilization rate of camera, product function is enriched, improve the practicality of product.
It should be noted that above-mentioned second embodiment, 3rd embodiment and fourth embodiment are directed to difference
Application scenarios described by three kinds of implementation methods, three embodiments can be configured as standalone feature,
Also setting can be mutually combined.
5th embodiment
A kind of alarm set is the embodiment of the invention provides, the terminal with integrated camera is applied to, referring to
Fig. 8, the alarm set includes：
Acquisition module 801, for gathering user images information by integrated camera.
Wherein, integrated camera described here is generally located on terminal screen top middle position.
Determining module 802, the viewed status for determining user according to user images information.
The module determines the viewed status of user according to the user images information that acquisition module 801 is gathered.
Wherein, viewed status at least include：User is to the distance between terminal screen, user's viewing terminal screen
One kind in the visual angle of curtain and the viewing posture of user.
Whether judge module 803, the viewed status for judging user meet the prompting bar of bad viewed status
Part.
Wherein, bad viewed status at least include：User is less than predeterminable range to the distance between terminal screen
Value (i.e. user closely viewing terminal screen), the visual angle angle of user's viewing terminal screen are more than preset angle
Angle value (i.e. user's stravismus terminal screen) and user (are for example lain with incorrect posture viewing terminal screen
Viewing etc.) in one kind.
Wherein, the visual angle of user's viewing terminal screen refer to the vertical direction institute of user's sight line and terminal screen etc. into
Angle.
Prompting module 804, for when alert condition is met, sending reminder message.
When judge module 803 judges that the viewed status of user meet the alert condition of bad viewed status,
Prompting module 804 sends reminder message, and viewing user is reminded.
Wherein, reminder message can be display alarm on a terminal screen, such as word remind, pattern remind or
It is that word plus pattern are reminded etc., or carry out voice by the loudspeaker of terminal or alarm sound is reminded,
Such as reminded in the way of voice broadcast viewing user or with specifically remind sound reminded (as " dichloro-diphenyl-dichlorothane "
Sound).
Further, referring to Fig. 9, determining module 802 includes：
First determining unit 8021, for according to human face detection tech, determining the use in user images information
Family face width information.
Whether the unit has face by human face detection tech in detection user images information, if it is,
Then obtain user face's width information (it should be noted that, now not specific user face width number
It is worth, simply a position substantially).
Wherein, human face detection tech refers to the image given for any one width, using certain strategy to it
Scan for if it is being returned to determine whether containing face position and the size of face.Face datection
Technology is commonplace method at present, has many ready-made softwares it is achieved that the therefore embodiment of the present invention
Subsequent algorithm application set up on this basis, system cost can't be increased.
Second determining unit 8022, for according to user face width information, determining user face width pair
The accounting value of the wide viewing angle of the integrated camera corresponding to user's present position.
Wherein, the unit can determine user face width to corresponding to user's present position by gridding method
Integrated camera wide viewing angle accounting value, that is, integrated camera collection user images in draw
A number of grid, determines user face grid number shared in the direction of the width and whole image in width
Shared grid number, then does ratio by the two on direction, the numerical value for obtaining as actual user face width
To the accounting value of the wide viewing angle of the integrated camera corresponding to user's present position.Its principle is：Though
Right user face developed width is absolute figure, will not be changed, but as user is closer or far from integrated
Camera, integrated camera collection user images in, the ratio regular meeting shared in the picture of user face by
Gradual change is big or diminishes, therefore user face width ratio shared in the picture is a relative value, can be sent out
Changing, so that actual user face width institute current to user can be determined by gridding method according to above-mentioned principle
In the accounting value of the wide viewing angle of the integrated camera corresponding to position.
First computing unit 8023, for according to the accounting value and default first computing formula for determining：
L=(w/2k1) × cot (α/2), calculates user face to the distance between terminal screen value.
Wherein, L represents user face to the distance between terminal screen value, and w represents default standard face
Width value, k1Represent visual angle of user's face's width to the integrated camera corresponding to user's present position
The accounting value of width, α represents the visual angle value of integrated camera.
Wherein, general default standard face width value w pre-sets before being dispatched from the factory for terminal, w's
Value can be the face width average value chosen according to previous experiences value, but in order to improve computational accuracy, eventually
End subscriber can also voluntarily set face's wide reference value according to actual needs, such as in order to monitor child in family
Viewed status, can be using face's width of child in family as face's wide reference value, so can be more smart
The true child that calculates arrives the distance between terminal screen, thus improve monitoring precision (in family other
Used when member carries out viewed status monitoring, in calculating process is still the face set before terminal is dispatched from the factory
Width value).Wherein, user voluntarily sets the implementation of face width value and refers to the according to actual needs
Step S301~step S305 in two embodiments.
Further, referring to Fig. 9, judge module 803 includes：
First judging unit 8031, for being worth according to the distance between user face to terminal screen, judges
Whether reminded.
Accordingly, prompting module 804 includes：
First timing unit 8041, for determining user face to terminal screen when the first judging unit 8031
The distance between value less than predeterminable range value when, start timer timing.
Wherein, in timer timing course, if detecting user face to the distance between terminal screen value
More than or equal to predeterminable range value, then timer stops timing, and empties timer.
First reminding unit 8042, for after the timing time of timer is reached, if user face is to eventually
The distance between end screen value then sends reminder message still less than predeterminable range value.
Further, referring to Fig. 9, determining module 802 includes：
3rd determining unit 8024, for according to user images information, determining user face to terminal screen
Distance value.
The unit determines user face to the implementation and step in second embodiment of terminal distance value
User face described in S202~step S204 is identical to terminal distance value implementation, specific implementation
Step S202~step S204 is referred to, embodiment of the present invention contrast is just no longer repeated.
4th determining unit 8025, for determining face center to the visual angle bisector of integrated camera
Distance value.
Wherein, face center can be regarded as the focus of two an eye line.
Preferably, the 4th determining unit 8025 can determine face center to integrated camera by gridding method
Visual angle bisector distance value, that is, in user images draw fixed data grid, it is then determined that people
Finally each grid is multiplied by the grid number between the visual angle bisector of integrated camera with grid number in face center
Length, then can obtain face center to the distance value of the visual angle bisector of integrated camera.Although drawing
During grid, the length value of each grid is not aware that, but due to being previously provided with standard face width value or use
Face's wide reference value that family is voluntarily set, and can determine that in user images institute in the direction of the width of user face
The accounting value of the grid number for the accounting for grid number shared in the direction of the width to whole image, therefore can calculate every
The length value of individual grid, so as to can determine that face center is divided equally to the visual angle of integrated camera by gridding method
The distance value of line.
Second computing unit 8026, for the distance value according to user face to terminal screen and face center
Point arrives the distance value of the visual angle bisector of integrated camera, using default 4th computing formula：
β=arctan (l/L), calculates the visual angle angle of user's viewing terminal screen.
Wherein, β represents the visual angle angle of user's viewing terminal screen, and l represents face center to integrated shooting
The distance value of the visual angle bisector of head, L represents user face to the distance value of terminal screen, referring to Fig. 6,
It is computation structure schematic diagram.
Further, referring to Fig. 9, judge module 803 includes：
Second judging unit 8032, for the visual angle angle according to user's viewing terminal screen, judges whether
Reminded.
Accordingly, reminding unit 804 includes：
Second timing unit 8043, predetermined angle is more than for the visual angle angle when user's viewing terminal screen
When, start timer timing.
Wherein, in timer timing course, if the visual angle angle for detecting user's viewing terminal screen is less than
Or equal to preset angle angle value, then timer stops timing, and empties timer.
Second reminding unit 8044, for after the timing time of timer reaches, if user's viewing terminal
The visual angle angle of screen then sends reminder message still greater than predetermined angle.
Further, referring to Fig. 9, determining module 802 includes：
First acquisition unit 8027, for according to human face detection tech, obtaining the use in user images information
Family face width information.
Whether the unit has face by human face detection tech in detection user images information, if it is,
Then obtain user face's width information (it should be noted that, now not specific user face width number
Value ceases, simply a position substantially).
Second acquisition unit 8028, for according to Binarization methods, obtaining the user in user images information
Body contour information.
Wherein, the binaryzation of image, whole image is exactly showed significantly there was only black and white vision effect
Really.Second acquisition unit 8028 can remove the ambient noise in user images, frame by Binarization methods
Select body contour.
5th determining unit 8029, for according to user face width information and user's body profile information,
Determine the position relationship of user face and body.
Wherein, user face at least includes with the position relationship of body：Longitudinal relation and horizontal relationship, longitudinal direction
Relation represents the state of user in standing or being seated etc., and horizontal relationship is (by the feelings with certain angle of inclination
Condition is considered as also horizontal relationship) represent that user is in state of couching.
Further, referring to Fig. 9, judge module 803 includes：
3rd judging unit 8033, for the position relationship according to user face and body, judge whether into
Row is reminded.
Further, referring to Fig. 9,804 pieces of mould is reminded to include：
3rd timing unit 8045, if being horizontal for the position relationship of user face and body, starts
Timer timing.
Wherein, if user face is horizontal with the position relationship of body, then it represents that user is in the viewing shape that couches
State, then start timer timing, in timing course, if detecting the position relationship of user face and body
Longitudinal direction is changed to, then needs further to be judged.
3rd reminding unit 8046, for after the timing time of timer reaches, if user face and body
The position relationship of body is still laterally, then to send reminder message.
Further, referring to Fig. 9, prompting module 804 includes：
6th determining unit 8047, for when the position relationship of user face and body is for longitudinal direction, it is determined that
The ratio value of user face width and body width.
If user face is longitudinal direction with the position relationship of body, represent that user is in the state being seated, if just
True sitting posture, face's width should be less than the width of body part, if sitting posture compares distortion, face's width
It is likely larger than or is substantially equal to the width of body part.
4th timing unit 8048, for being more than or waiting with the ratio value of body width when user face width
When preset ratio value, start timer timing.
In order to improve judgement accuracy, a preset ratio value is the embodiment of the invention provides, according to the default ratio
Example value and user face width and the magnitude relationship of the ratio value of body width, determining the viewing posture of user is
No is bad viewing posture, wherein, preset ratio value is a ratio value according to determined by previous experiences value.
Wherein, in timer timing course, if detecting the ratio value of user face width and body width
Less than preset ratio value, then timer stops timing, and empties timer.
4th reminding unit 8049, for after the timing time of timer reaches, if user face width
With the ratio value of body width still greater than or equal to preset ratio value, then reminder message is sent.
In embodiments of the present invention, acquisition module 801 is gathered by the integrated camera being arranged in terminal
User images information, the user images information that determining module 802 is gathered according to acquisition module 801 determines to use
The viewed status at family, then be bad sight by whether the viewed status that judge module 803 analyzes determination user meet
State is seen, if meeting, user is reminded by prompting module 804, adjust viewing in time so as to user
State, realizes health viewing, additionally, the embodiment of the present invention is using existing structure-integrated shooting in terminal
Head gathers image information, can lift the utilization rate of integrated camera, enriches product function, improves product
Practicality.
It should be noted that alarm set provided in an embodiment of the present invention is implemented with first embodiment, second
The corresponding device of based reminding method that example, 3rd embodiment and fourth embodiment are provided, first embodiment,
All implementations in second embodiment, 3rd embodiment and fourth embodiment are filled suitable for the prompting
In the embodiment put, identical technique effect can be also reached.
Above-described is the preferred embodiment of the present invention, it should be pointed out that for the ordinary people of the art
For member, some improvements and modifications can also be made under the premise of principle of the present invention is not departed from, these
Improvements and modifications are also within the scope of the present invention.
Claims (22)
1. a kind of based reminding method, is applied to the terminal with integrated camera, it is characterised in that described to carry
Awake method includes：
User images information is gathered by the integrated camera；
The viewed status of user are determined according to the user images information, wherein, the viewed status are at least wrapped
Include：Viewing appearance of the user to the distance between terminal screen, the visual angle of user's viewing terminal screen and user
One kind in gesture；
Judge whether the viewed status of user meet the alert condition of bad viewed status；
If meeting alert condition, reminder message is sent.
2. based reminding method according to claim 1, it is characterised in that described to be schemed according to the user
In the step of viewed status of user are determined as information, user to terminal is determined according to the user images information
The distance between screen, wherein determining that user arrives the distance between terminal screen according to the user images information
The step of include：
According to human face detection tech, the user face width information in the user images information is determined；
According to user face width information, determine that user face width is right to user's present position institute
The accounting value of the wide viewing angle of the integrated camera answered；
According to the accounting value and default first computing formula that determine：L=(w/2k1) × cot (α/2),
Calculate user face to the distance between terminal screen value；
Wherein, L represents user face to the distance between terminal screen value, and w represents default standard face
Width value, k1Represent user's face's width to the integrated camera corresponding to user's present position
The accounting value of wide viewing angle, α represents the visual angle value of the integrated camera.
3. based reminding method according to claim 2, it is characterised in that the determination user face is wide
The step of spending the accounting value to the wide viewing angle of the integrated camera corresponding to user's present position
Including：
Determine that user face width is taken the photograph to described integrated corresponding to user's present position by gridding method
As the accounting value of the wide viewing angle of head.
4. based reminding method according to claim 2, it is characterised in that the viewing of the judgement user
The step of whether state meets the alert condition of bad viewed status includes：
It is worth according to the distance between user face to terminal screen, judges whether to remind；
Accordingly, include if described meet alert condition, the step of send reminder message：
If user face is less than predeterminable range value to the distance between terminal screen value, start timer timing；
After the timing time of the timer is reached, if user face is worth still to the distance between terminal screen
Less than predeterminable range value, then reminder message is sent.
5. based reminding method according to claim 1, it is characterised in that described to be schemed according to the user
In the step of viewed status of user are determined as information, user's viewing is determined eventually according to the user images information
The visual angle of screen is held, wherein determining the step at the visual angle of user's viewing terminal screen according to the user images information
Suddenly include：
According to the user images information, user face to the distance value of terminal screen is determined；
Determine face center to the distance value of the visual angle bisector of the integrated camera；
Distance value and face center regarding to the integrated camera according to user face to terminal screen
The distance value of angular bisector, using default 4th computing formula：β=arctan (l/L), calculates user and sees
See the visual angle angle of terminal screen；
Wherein, β represents the visual angle angle of user's viewing terminal screen, and l represents face center to described integrated
The distance value of the visual angle bisector of camera, L represents user face to the distance value of terminal screen.
6. based reminding method according to claim 5, it is characterised in that the determination face center
To the visual angle bisector of the integrated camera distance value the step of include：
Face center to the distance value of the visual angle bisector of the integrated camera is determined by gridding method.
7. based reminding method according to claim 5, it is characterised in that the judgement user is current
The step of whether viewed status meet the alert condition of bad viewed status includes：
According to the visual angle angle of user's viewing terminal screen, judge whether to remind；
Accordingly, include if described meet alert condition, the step of send reminder message：
If the visual angle angle of user's viewing terminal screen is more than predetermined angle, start timer timing；
After the timing time of the timer reaches, if the visual angle angle of user's viewing terminal screen still greater than
Predetermined angle, then send reminder message.
8. based reminding method according to claim 1, it is characterised in that described to be schemed according to the user
In the step of viewed status of user are determined as information, the viewing of user is determined according to the user images information
Posture, wherein the step of determining the viewing posture of user according to the user images information includes：
According to human face detection tech, the user face width information in the user images information is obtained；
According to Binarization methods, the user's body profile information in the user images information is obtained；
According to user face width information and user's body profile information, the position of user face and body is determined
Relation.
9. based reminding method according to claim 8, it is characterised in that the viewing of the judgement user
The step of whether state meets the alert condition of bad viewed status includes：
According to user face and the position relationship of body, judge whether to remind.
10. based reminding method according to claim 9, it is characterised in that if described meet alert condition,
The step of then sending reminder message includes：
If user face is horizontal with the position relationship of body, start timer timing；
After the timing time of the timer reaches, if user face is still horizontal with the position relationship of body,
Then send reminder message.
11. based reminding methods according to claim 9, it is characterised in that if described meet alert condition,
The step of then sending reminder message includes：
If user face is longitudinal direction with the position relationship of body, it is determined that user face width and body width
Ratio value；
If user face width is more than or equal to preset ratio value with the ratio value of body width, start timing
Device timing；
After the timing time of the timer reaches, if the ratio value of user face width and body width is still
More than or equal to preset ratio value, then reminder message is sent.
A kind of 12. alarm sets, are applied to the terminal with integrated camera, it is characterised in that described to carry
Awake device includes：
Acquisition module, for gathering user images information by the integrated camera；
Determining module, the viewed status for determining user according to the user images information, wherein, it is described
Viewed status at least include：User to the distance between terminal screen, user's viewing terminal screen visual angle with
And the one kind in the viewing posture of user；
Whether judge module, the viewed status for judging user meet the alert condition of bad viewed status；
Prompting module, for when alert condition is met, sending reminder message.
13. alarm sets according to claim 12, it is characterised in that the determining module includes：
First determining unit, for according to human face detection tech, determining the user in the user images information
Face's width information；
Second determining unit, for according to user face width information, determine user face width to
The accounting value of the wide viewing angle of the integrated camera corresponding to the present position of family；
First computing unit, for according to the accounting value and default first computing formula for determining：
L=(w/2k1) × cot (α/2), calculates user face to the distance between terminal screen value；
Wherein, L represents user face to the distance between terminal screen value, and w represents default standard face
Width value, k1Represent user's face's width to the integrated camera corresponding to user's present position
The accounting value of wide viewing angle, α represents the visual angle value of the integrated camera.
14. alarm sets according to claim 13, it is characterised in that second determining unit
Specifically for：Determine user face width to the collection corresponding to user's present position by gridding method
Into the accounting value of the wide viewing angle of camera.
15. alarm sets according to claim 13, it is characterised in that the judge module includes：
First judging unit, for according to the distance between user face to terminal screen be worth, judge whether into
Row is reminded；
Accordingly, the prompting module includes：
First timing unit, for being less than predeterminable range value when the distance between user face to terminal screen value
When, start timer timing；
First reminding unit, for after the timing time of the timer is reached, if user face is to terminal
The distance between screen is worth still less than predeterminable range value, then send reminder message.
16. alarm sets according to claim 12, it is characterised in that the determining module includes：
3rd determining unit, for according to the user images information, determining that user face arrives terminal screen
Distance value；
4th determining unit, for determine face center to the visual angle bisector of the integrated camera away from
From value；
Second computing unit, for the distance value and face center according to user face to terminal screen to institute
The distance value of the visual angle bisector of integrated camera is stated, using default 4th computing formula：
β=arctan (l/L), calculates the visual angle angle of user's viewing terminal screen；
Wherein, β represents the visual angle angle of user's viewing terminal screen, and l represents face center to described integrated
The distance value of the visual angle bisector of camera, L represents user face to the distance value of terminal screen.
17. alarm sets according to claim 16, it is characterised in that the 4th determining unit
Specifically for：Face center to the distance of the visual angle bisector of the integrated camera is determined by gridding method
Value.
18. alarm sets according to claim 16, it is characterised in that the judge module includes：
Second judging unit, for the visual angle angle according to user's viewing terminal screen, judges whether to carry
Wake up；
Accordingly, the reminding unit includes：
Second timing unit, for when the visual angle angle of user's viewing terminal screen is more than predetermined angle, opening
Dynamic timer timing；
Second reminding unit, for after the timing time of the timer reaches, if user's viewing terminal screen
The visual angle angle of curtain then sends reminder message still greater than predetermined angle.
19. alarm sets according to claim 12, it is characterised in that the determining module includes：
First acquisition unit, for according to human face detection tech, obtaining the user in the user images information
Face's width information；
Second acquisition unit, for according to Binarization methods, obtaining the user's body in the user images information
Body profile information；
5th determining unit, for according to user face width information and user's body profile information, it is determined that with
Family face and the position relationship of body.
20. alarm sets according to claim 19, it is characterised in that the judge module includes：
3rd judging unit, for the position relationship according to user face and body, judges whether to remind.
21. alarm sets according to claim 20, it is characterised in that the prompting module includes：
3rd timing unit, if being horizontal for the position relationship of user face and body, starts timer
Timing；
3rd reminding unit, for after the timing time of the timer reaches, if user face and body
Position relationship still for laterally, then send reminder message.
22. alarm sets according to claim 20, it is characterised in that the prompting module includes：
6th determining unit, for when the position relationship of user face and body is for longitudinal direction, determining user's face
The ratio value of portion's width and body width；
4th timing unit, for the ratio value when user face width and body width more than or equal to default
During ratio value, start timer timing；
4th reminding unit, for after the timing time of the timer reaches, if user face width with
The ratio value of body width then sends reminder message still greater than or equal to preset ratio value.
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