CN108881974A - Open the method and system of television set child mode - Google Patents
Open the method and system of television set child mode Download PDFInfo
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- CN108881974A CN108881974A CN201810528706.3A CN201810528706A CN108881974A CN 108881974 A CN108881974 A CN 108881974A CN 201810528706 A CN201810528706 A CN 201810528706A CN 108881974 A CN108881974 A CN 108881974A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/439—Processing of audio elementary streams
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/4104—Peripherals receiving signals from specially adapted client devices
- H04N21/4122—Peripherals receiving signals from specially adapted client devices additional display device, e.g. video projector
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/4104—Peripherals receiving signals from specially adapted client devices
- H04N21/4126—The peripheral being portable, e.g. PDAs or mobile phones
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
- H04N21/4363—Adapting the video or multiplex stream to a specific local network, e.g. a IEEE 1394 or Bluetooth® network
- H04N21/43637—Adapting the video or multiplex stream to a specific local network, e.g. a IEEE 1394 or Bluetooth® network involving a wireless protocol, e.g. Bluetooth, RF or wireless LAN [IEEE 802.11]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/441—Acquiring end-user identification, e.g. using personal code sent by the remote control or by inserting a card
- H04N21/4415—Acquiring end-user identification, e.g. using personal code sent by the remote control or by inserting a card using biometric characteristics of the user, e.g. by voice recognition or fingerprint scanning
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/442—Monitoring of processes or resources, e.g. detecting the failure of a recording device, monitoring the downstream bandwidth, the number of times a movie has been viewed, the storage space available from the internal hard disk
- H04N21/44213—Monitoring of end-user related data
- H04N21/44218—Detecting physical presence or behaviour of the user, e.g. using sensors to detect if the user is leaving the room or changes his face expression during a TV program
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Computer Networks & Wireless Communication (AREA)
- Social Psychology (AREA)
- Databases & Information Systems (AREA)
- Biomedical Technology (AREA)
- Human Computer Interaction (AREA)
- Theoretical Computer Science (AREA)
- Image Processing (AREA)
Abstract
The invention discloses a kind of methods for opening television set child mode, including:Acquisition for mobile terminal face characteristic image simultaneously estimates the corresponding age value of the face characteristic image;Whether mobile terminal judges the age value within the scope of preset child age;If the age value, within the scope of the child age, mobile terminal sends the instruction for opening child mode to television set, for the corresponding audio, video data of child age range described in the television for play;Alternatively, mobile terminal sends the age value to television set, if the age value is within the scope of the child age for the corresponding audio, video data of child age range described in the television for play.The invention also discloses a kind of systems for opening television set child mode, realize the child mode of the unlatching television set of safe and intelligent.
Description
Technical field
The present invention relates to digital TV technology more particularly to a kind of method for opening television set child mode and it is
System.
Background technique
With digital television business, multimedia development and the improvement of people's living standards, watching TV programme becomes
A kind of very important entertainment way in people's daily leisure activity, but some TV programme are not suitable for children's viewing, especially
Be parent not child at one's side, worry child see on TV some pictures unsuitable for children will affect child psychology it is strong
Health.
Previous technology is usually children's watching mode that television set is opened and closed by password, this setting means
It is too simple, child it is easy to see that parent operation, thus remember password carry out relevant operation, safety it is not high and operate
Method is not intelligent.
Summary of the invention
The main purpose of the present invention is to provide a kind of method and systems for opening television set child mode, it is intended to solve to pass
The dangerous not intelligent technical problem of method of the unlatching television set child mode of system.
To achieve the above object, the present invention provides a kind of method for opening television set child mode, the unlatching television set
The method of child mode includes step:
Acquisition for mobile terminal face characteristic image simultaneously estimates the corresponding age value of the face characteristic image;
Whether mobile terminal judges the age value within the scope of preset child age;
If the age value, within the scope of the child age, mobile terminal sends to television set and opens child mode
Instruction, for the corresponding audio, video data of child age range described in the television for play;
Alternatively, mobile terminal sends the age to television set if the age value is within the scope of the child age
Value, for the corresponding audio, video data of child age range described in the television for play.
Preferably, the acquisition for mobile terminal face characteristic image and estimate the corresponding age value of the face characteristic image
The step of include:
Acquisition for mobile terminal face characteristic image simultaneously pre-processes the face characteristic image;
The face characteristic parameter of the face characteristic image after acquisition for mobile terminal pretreatment;
Mobile terminal is using the face characteristic parameter as the parameter of default age estimation function, to obtain the default year
The output valve of age estimation function;
Mobile terminal is using the output valve as the corresponding age value of the face characteristic image.
Preferably, the acquisition for mobile terminal face characteristic image and pretreated step is carried out to the face characteristic image
Suddenly include:
Acquisition for mobile terminal current face characteristic image simultaneously carries out grayscale equalization processing to the face characteristic image;
Mobile terminal carries out graphical rule normalization to the face characteristic image after grayscale equalization processing
Processing.
Preferably, the step of the face characteristic parameter of the face characteristic image after the acquisition for mobile terminal pretreatment
Suddenly include:
The feature vector of the face characteristic image after acquisition for mobile terminal pretreatment;
Mobile terminal obtains corresponding face characteristic parameter according to described eigenvector.
Preferably, the step of feature vector of the face characteristic image after the acquisition for mobile terminal pretreatment is wrapped
It includes:
Mobile terminal carries out feature extraction to the face characteristic image after pretreatment to obtain multiple characteristic images;
Mobile terminal carries out slicing operation to each characteristic image respectively to obtain multiple block feature images and use office
Portion's binary pattern algorithm automatically extracts the histogram sequence of the block feature image;
The histogram sequence of multiple block feature images is connected into a vector by mobile terminal, as the face characteristic
The feature vector of image.
Preferably, it is more to obtain to carry out feature extraction to the face characteristic image after pretreatment for the mobile terminal
The step of a characteristic image includes:
Mobile terminal carries out Gabor wavelet transformation to the face characteristic image after pretreatment, multiple to obtain
Gabor magnitude image;
Mobile terminal carries out local binary patterns coding to each Gabor magnitude image respectively to obtain corresponding characteristic pattern
Picture.
Preferably, the method for opening television set child mode further includes:
When television set receives the age value of mobile terminal transmission, judge the age value whether in preset youngster
In virgin the range of age;
If the age value is within the scope of the child age, the corresponding sound of child age range described in television for play
Video data.
In addition, to achieve the above object, the present invention also proposes a kind of system for opening television set child mode, the unlatching
The system of television set child mode includes mobile terminal and television set, wherein the mobile terminal, for obtaining face characteristic figure
As simultaneously estimating the corresponding age value of the face characteristic image, and if the age value within the scope of the child age,
The instruction or age information for opening child mode are sent to television set;The television set, for receiving the mobile terminal
When the instruction of the unlatching child mode of transmission, the corresponding audio, video data of the child age range is played;Alternatively, the TV
Machine plays the corresponding audio-video number of the child age range when the age value received is within the scope of the child age
According to.
The method and system proposed by the present invention for opening television set child mode, passes through acquisition for mobile terminal face characteristic figure
Whether picture simultaneously estimates the corresponding age value of face characteristic image, then judge the age value in preset child age range
It is interior, if sending the instruction for opening child mode, to television set within the scope of child age for television for play child age
The corresponding audio, video data of range, or the age value is sent to television set, so that television set judges and plays child age model
Corresponding audio, video data is enclosed, realizes the child mode of the unlatching television set of safe and intelligent.
Detailed description of the invention
Fig. 1 is the terminal structure schematic diagram for the hardware running environment that the embodiment of the present invention is related to;
Fig. 2 is the flow diagram for the method first embodiment that the present invention opens television set child mode;
Fig. 3 is the step of obtaining face characteristic image in Fig. 2 and estimate the face characteristic image corresponding age value
Refine flow diagram;
Fig. 4 is refinement the step of obtaining the face characteristic parameter of the face characteristic image after pretreatment in Fig. 3
Flow diagram;
Fig. 5 is the flow diagram for the method fourth embodiment that the present invention opens television set child mode.
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific embodiment
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
The primary solutions of the embodiment of the present invention are:
Acquisition for mobile terminal face characteristic image simultaneously estimates the corresponding age value of the face characteristic image;
Whether mobile terminal judges the age value within the scope of preset child age;
If the age value, within the scope of the child age, mobile terminal sends to television set and opens child mode
Instruction, for the corresponding audio, video data of child age range described in the television for play;
Alternatively, mobile terminal sends the age to television set if the age value is within the scope of the child age
Value, for the corresponding audio, video data of child age range described in the television for play.
Method due in the prior art, opening television set child mode is dangerous and not intelligent.
The present invention provides a solution, and acquisition for mobile terminal face characteristic image simultaneously estimates the face characteristic image pair
The age value answered, then judge the age value whether within the scope of preset child age, if within the scope of child age, to
Television set sends the instruction for opening child mode, for the corresponding audio, video data of television for play child age range, or
The age value is sent to television set, so that television set judges and play the corresponding audio, video data of child age range, realizes peace
The child mode of the unlatching television set of full intelligence.
As shown in Figure 1, Fig. 1 is the terminal structure schematic diagram for the hardware running environment that the embodiment of the present invention is related to.
The terminal of that embodiment of the invention is mobile terminal and television set, and the mobile terminal is that smart phone, iPad etc. can be with
The portable electronic device of wireless communication is established with television set.
As shown in Figure 1, the terminal may include:Processor 1001, such as CPU, network interface 1004, user interface
1003, memory 1005 and communication bus 1002.Wherein, communication bus 1002 is logical for realizing the connection between these components
Letter.User interface 1003 may include display screen (Display), input unit such as keyboard (Keyboard), and optional user connects
Mouth 1003 can also include standard wireline interface and wireless interface.Network interface 1004 optionally may include the wired of standard
Interface, wireless interface (such as WI-FI interface).Memory 1005 can be high speed RAM memory, be also possible to stable memory
(non-volatile memory), such as magnetic disk storage.Memory 1005 optionally can also be independently of aforementioned processor
1001 storage device.
It will be understood by those skilled in the art that the restriction of the not structure paired terminal of terminal structure shown in Fig. 1, can wrap
It includes than illustrating more or fewer components, perhaps combines certain components or different component layouts.
As shown in Figure 1, as may include that operating system, network are logical in a kind of memory 1005 of computer storage medium
Believe module, Subscriber Interface Module SIM and the program for opening television set child mode.
In terminal shown in Fig. 1, network interface 1004 is mainly used for connecting background server, carries out with background server
Data communication;User interface 1003 is mainly used for connecting client (user terminal), carries out data communication with client;And processor
1001 can be used for calling the program of the unlatching television set child mode stored in memory 1005, and execute following operation:
Acquisition for mobile terminal face characteristic image simultaneously estimates the corresponding age value of the face characteristic image;
Whether mobile terminal judges the age value within the scope of preset child age;
If the age value, within the scope of the child age, mobile terminal sends to television set and opens child mode
Instruction, for the corresponding audio, video data of child age range described in the television for play;
Alternatively, mobile terminal sends the age to television set if the age value is within the scope of the child age
Value, for the corresponding audio, video data of child age range described in the television for play.
Further, processor 1001 can call the journey of the unlatching television set child mode stored in memory 1005
Sequence also executes following operation:
Acquisition for mobile terminal face characteristic image simultaneously pre-processes the face characteristic image;
The face characteristic parameter of the face characteristic image after acquisition for mobile terminal pretreatment;
Mobile terminal is using the face characteristic parameter as the parameter of default age estimation function, to obtain the default year
The output valve of age estimation function;
Mobile terminal is using the output valve as the corresponding age value of the face characteristic image.
Further, processor 1001 can call the journey of the unlatching television set child mode stored in memory 1005
Sequence also executes following operation:
Acquisition for mobile terminal current face characteristic image simultaneously carries out grayscale equalization processing to the face characteristic image;
Mobile terminal carries out graphical rule normalization to the face characteristic image after grayscale equalization processing
Processing.
Further, processor 1001 can call the journey of the unlatching television set child mode stored in memory 1005
Sequence also executes following operation:
The feature vector of the face characteristic image after acquisition for mobile terminal pretreatment;
Mobile terminal obtains corresponding face characteristic parameter according to described eigenvector.
Further, processor 1001 can call the journey of the unlatching television set child mode stored in memory 1005
Sequence also executes following operation:
Mobile terminal carries out feature extraction to the face characteristic image after pretreatment to obtain multiple characteristic images;
Mobile terminal carries out slicing operation to each characteristic image respectively to obtain multiple block feature images and use office
Portion's binary pattern algorithm automatically extracts the histogram sequence of the block feature image;
The histogram sequence of multiple block feature images is connected into a vector by mobile terminal, as the face characteristic
The feature vector of image.
Further, processor 1001 can call the journey of the unlatching television set child mode stored in memory 1005
Sequence also executes following operation:
Mobile terminal carries out Gabor wavelet transformation to the face characteristic image after pretreatment, multiple to obtain
Gabor magnitude image;
Mobile terminal carries out local binary patterns coding to each Gabor magnitude image respectively to obtain corresponding characteristic pattern
Picture.
Further, processor 1001 can call the journey of the unlatching television set child mode stored in memory 1005
Sequence also executes following operation:
When television set receives the age value of mobile terminal transmission, judge the age value whether in preset youngster
In virgin the range of age;
If the age value is within the scope of the child age, the corresponding sound of child age range described in television for play
Video data.
It is the flow diagram for the method first embodiment that the present invention opens television set child mode referring to Fig. 2, Fig. 2;
The present embodiment proposes a kind of method for opening television set child mode, the method packet of the unlatching television set child mode
Include step:
Step S10, acquisition for mobile terminal face characteristic image simultaneously estimate the corresponding age value of the face characteristic image;
The present invention proposes a kind of method for opening television set child mode, and compared with the existing technology, main improvement is field
The improvement of scape, i.e. mobile terminal and television set, which are established, to be wirelessly communicated, and mobile terminal is special by the face that picture pick-up device obtains user
Image to be levied, and estimates the age of user by the face characteristic image, television set receives the information that mobile terminal sends over, from
And open child mode.It should be noted that estimation age value be mobile terminal operation, the age value judged whether
This operation within the scope of child age, mobile terminal and television set are all executable.Age value described herein can be one section of year
Age section can also be a specific age value of estimation, such as:9~12 or 10, it is not limited here.
Whether step S20, mobile terminal judge the age value within the scope of preset child age;
Step S30, if the age value, within the scope of the child age, mobile terminal sends to television set and opens youngster
The instruction of virgin mode, for the corresponding audio, video data of child age range described in the television for play;Alternatively, if the year
Age value is within the scope of the child age, then mobile terminal sends the age value to television set, for the television for play
The corresponding audio, video data of the child age range.
Child age range is preset in the present invention, such as:2~12 years old age brackets.The age of user value that step S10 is obtained
It is compared with preset child age range, whether is the age value that is judged by mobile terminal herein in preset child age
In range, if age value, within the scope of the preset child age, mobile terminal sends to television set and opens child mode
Instruction, so that television set searches for the TV program information for being suitble to children to watch and plays corresponding audio-video document.
There are also a kind of situations, and whether the age value that mobile terminal judges is within the scope of preset child age, if year
For age value within the scope of the preset child age, which is sent to television set by mobile terminal, and television set is sentenced again
It is disconnected, if age value, within the scope of the preset child age, television set is searched for the TV program information for being suitble to children's viewing and is broadcast
Put corresponding audio-video document.It is understood that mobile terminal and television set have preset child age range, it is mobile whole
End can send to television set it has been determined that when obtained age value is within the scope of preset child age and open child mode
Instruction, can also send age value, if what mobile terminal sent to television set is age value, television set carries out age value again
Judgement determines whether to open child mode.In addition, not carrying out age value judgement in mobile terminal, or carry out the age
Value judgement failure, when not obtaining result, can be sent to television set for the age value, be judged by television set.
The method for the unlatching television set child mode that the present embodiment proposes, acquisition for mobile terminal face characteristic image are simultaneously estimated
Then the corresponding age value of face characteristic image judges the age value whether within the scope of preset child age, if in youngster
In virgin the range of age, then the instruction for opening child mode is sent to television set, so that television for play child age range is corresponding
Audio, video data, or the age value is sent to television set, so that television set judges and to play child age range corresponding
Audio, video data realizes the child mode of the unlatching television set of safe and intelligent.
Further, referring to Fig. 3, propose that the present invention opens the method second of television set child mode based on first embodiment
Embodiment, in the present embodiment, the step S10 includes:
Step S11, acquisition for mobile terminal face characteristic image simultaneously pre-process the face characteristic image;
Pretreatment described herein refers to first then carrying out figure again to the progress grayscale equalization processing of face characteristic image
As dimension normalization is handled.
Grayscale equalization is to pass through gray scale to make the bright-dark degree of collected original image be evenly distributed with image A
It obtains being illustrated for image B after equalization processing, specific processing step is as follows:
1) the gray level f of image A is listedj, j=0,1,2,3 ..., L-1, wherein L is the number of gray level;
2) each gray-scale number of pixels n of statistical picture Aj, j=0,1,2,3 ..., L-1;
3) each gray-scale frequency P of image A histogram is calculatedf(fj)=nj/ n, j=0,1,2,3 ..., L-1, wherein n be
Image A total number of pixels;
4) Cumulative Distribution Function is calculatedK=0,1,2,3 ..., L-1;
5) the gray level g of image B is calculatedi, formula is:gi=INT [(gmax-gmin)C(f)+gmin+ 0.5], wherein i=0,
1,2 ..., P-1, P are the number of image B gray level, and INT is to be rounded symbol;
6) each gray-scale number of pixels n of statistical picture Bi, i=0,1,2 ..., P-1;
7) each gray-scale frequency P of image B histogram is calculatedg(gi)=ni/ n, i=0,1,2 ..., P-1;
8) f is usedjAnd giMapping relations modification image A gray level, so that obtaining histogram is approximately equally distributed figure
As B.
It should be noted that:During grayscale equalization, it is necessary to guarantee two conditions:1. how no matter pixel map,
It has to guarantee that original size relation is constant, brighter region remains brighter, and darker region remains darker,
Only contrast increases, and it is reverse to be absolutely unable to light and shade;2. it cannot cross the border after image mapping, for example, if it is eight bit images, then
The codomain of pixel mapping function cannot should cross the border between 0 and 255.In summary two conditions, therefore select cumulative distribution letter
Number, because Cumulative Distribution Function is monotonic increasing function, controllable size relationship, and codomain is 0 to 1, controllable problem of crossing the border.
Dimension normalization be the different face characteristic image of size is transformed to unified standard size image so as to
In the extraction of face characteristic, standard size described herein is preset value, due under varying environment and scene to the standard of image
Size requirement is different, therefore those skilled in the art can modify according to the actual situation.Two-wire shape has been selected to insert in the present invention
Value method, specific algorithm have size diminution and two kinds of amplification of size.The diminution formula of size is:
Wherein, (x, y) is the pixel value of original image, and (x ', y ') is the pixel value of image after transformation, and a, d are respectively water
Square to the scale factor with vertical direction, the value of a and d are based on standard size image, and original image and standard size image exist
Ratio horizontally and vertically is scale factor.
During size amplification, it may appear that the pixel not having in some original images, this just needs to pass through interpolation
Operation calculates the pixel value of the point.In order to best eliminate the mosaic phenomenon occurred when amplification, bilinearity can be used
The gray value on rectangle vertex in original image is copied to the corresponding vertex of amplified image rectangle first by the algorithm of interpolation,
Then the gray value of all the points in original image is calculated using bilinear interpolation algorithm, realizes size normalizing.
Postulated point (x0,y0) and (x1,y1) it is two of rectangle respectively to angular vertex, point (x, y) is included in the rectangle,
And meet x ∈ (x0,x1), y ∈ (y0,y1), then the gray value f (x, y) of the point can be acquired according to the following formula.
Step S12, the face characteristic parameter of the face characteristic image after acquisition for mobile terminal pretreatment;
The treatment process of step S12 will do specific description in the third embodiment, be to provide number for age estimation herein
According to, that is, obtain the parameter value of default age estimation function.
Step S13, mobile terminal is using the face characteristic parameter as the parameter of default age estimation function, to obtain
State the output valve of default age estimation function;
Step S14, mobile terminal is using the output valve as the corresponding age value of the face characteristic image.
The present invention realizes the estimation of face age by Support vector regression (SVR) function, using Support vector regression
When carrying out age estimation, it is divided into linear regression mode and nonlinear regression.SVR can be described as when linear separability
Following form:
The effect of the formula is to seek an equation of linear regression, i.e. line in the case where classification problem is linear separability
Property can divide the SVR model of training sample point.Wherein, n is sample point (x1, y1), (x2, y2)...(xi, yi)...(xn, yn) it is total
Number, λi *It is variable parameter relevant to kernel function, b*For constant.
When not being linear separability, this can be solved the problems, such as by introducing kernel function, kernel function can reflect training data
It is mapped to higher dimensional space, to increase the computing capability of Nonlinear Learning device to solve the problems, such as that Nonlinear Classification, regression function be:
The effect of the formula is to seek a Nonlinear regression equation in the case where classification problem is Nonlinear separability,
That is the SVR model of Nonlinear separability training sample point.Wherein m represents the number of supporting vector, and ai is Lagrange multiplier, ai *For
A is corresponded to when supporting vector algorithm constrained optimization formula minimumiThe value of vector, K (xi, xj) it is kernel function, b is constant.
Since the basic principle of support vector machines is to search out a hyperplane in space, so that the error rate of classification is most
It is small, therefore finally use mean square error (Mean Square Error, MSE) and mean absolute error (Mean Absolute
Error, MAE) carry out the effect of appraisal age estimation function.The formula of mean square error is:It is flat
The formula of equal absolute error is:Wherein, n is the number of sample point, yiIt is true for age parameter
Value, f (xi) it is age estimated value.
In technical solution disclosed in the present embodiment, mobile terminal is taught by the face characteristic image obtained and carries out the age
The method of estimation, is improved on the basis of existing technology, so that the method for age estimation is more accurate, so as to more precisely
Estimation user age to reduce error.
Further, referring to Fig. 4, propose that the present invention opens the method third of television set child mode based on second embodiment
Embodiment, in the present embodiment, the step S12 includes:
Step S121, mobile terminal carry out Gabor wavelet transformation to the face characteristic image after pretreatment, with
To multiple Gabor magnitude images;
Step S122, mobile terminal carry out local binary patterns coding to each Gabor magnitude image respectively to obtain pair
The characteristic image answered;
Step S123, mobile terminal carry out slicing operation to each characteristic image respectively to obtain multiple block feature images
And the histogram sequence of the block feature image is automatically extracted using local binary patterns algorithm;
Step S124, the histogram sequence of multiple block feature images is connected into a vector by mobile terminal, as institute
State the feature vector of face characteristic image;
Step S125, mobile terminal obtain corresponding face characteristic parameter according to described eigenvector.
Gabor wavelet transformation can extract the feature of different scale and different directions in image domains, to reflect not
With the texture variations situation on scale and different directions, it is widely used in field of face identification.LBP operator can extract figure
The localized variations feature such as edge of picture, but the feature representation of single scale can only be carried out.The present invention by existing Gabor wavelet with
LBP operator combines, and forms a kind of new operator, is named as LGBP operator herein, and using the LGBP operator to face characteristic
Image carries out feature extraction.LGBP operator combines LBP operator to the insensitivity and Gabor wavelet of illumination to noise, expression
The advantages of fault-tolerance, to obtain point-device characteristic image.Then cutting is carried out to each width characteristic image, obtains multiple sons
The characteristic image of block, the sequence for finally forming the LGBP histogram of the sub-block after all piecemeals of width face characteristic image concatenate
Get up, as the feature vector of face characteristic image, further obtains face characteristic parameter.
In technical solution disclosed in the present embodiment, by combining existing Gabor wavelet with LBP operator, one is formed
The new operator of kind, to obtain the face characteristic parameter of face characteristic image, since this new operator combines the excellent of the prior art
Point, therefore the face characteristic parameter obtained is more accurate, so that the age value estimated of subsequent age also more close use
The real age at family.
Further, referring to Fig. 5, propose that the present invention opens the method fourth embodiment of television set child mode, in this reality
It applies in example, the method for opening television set child mode further includes:
Step S40, television set receive mobile terminal transmission the age value when, judge the age value whether
Within the scope of preset child age;
Step S50, if the age value within the scope of the child age, child age range described in television for play
Corresponding audio, video data.
Age value described herein is by acquisition for mobile terminal and sends, and specific implementation is implemented referring to first to third
Example, details are not described herein.
In technical solution disclosed in the present embodiment, the process flow of television set in the present invention is described, television set is receiving
To mobile terminal send age value when, the age value is judged whether within the scope of preset child age, if in preset youngster
In virgin the range of age, then searches for the TV program information for being suitble to children's viewing and play corresponding audio-video document.In this way, moving
Dynamic terminal does not carry out age value judgement, or carries out age value judgement failure, when not obtaining result, is sentenced by television set
It is disconnected, so that the method for opening television set child mode is more perfect.
In addition, the embodiment of the present invention also proposes a kind of system for opening television set child mode, the unlatching television set
The system of virgin mode includes mobile terminal and television set, wherein the mobile terminal, for obtaining face characteristic image and estimating
The corresponding age value of the face characteristic image, and if the age value within the scope of the child age, to television set
Send the instruction or age information for opening child mode;The television set, for receiving opening for the mobile terminal transmission
When opening the instruction of child mode, the corresponding audio, video data of the child age range is played;Alternatively, the television set is receiving
When the age value arrived is within the scope of the child age, the corresponding audio, video data of the child age range is played.
It should be noted that, in this document, the terms "include", "comprise" or its any other variant are intended to non-row
His property includes, so that the process, method, article or the device that include a series of elements not only include those elements, and
And further include other elements that are not explicitly listed, or further include for this process, method, article or device institute it is intrinsic
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including being somebody's turn to do
There is also other identical elements in the process, method of element, article or device.
The serial number of the above embodiments of the invention is only for description, does not represent the advantages or disadvantages of the embodiments.
Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment side
Method can be realized by means of software and necessary general hardware platform, naturally it is also possible to by hardware, but in many cases
The former is more preferably embodiment.Based on this understanding, technical solution of the present invention substantially in other words does the prior art
The part contributed out can be embodied in the form of software products, which is stored in one as described above
In storage medium (such as ROM/RAM, magnetic disk, CD), including some instructions are used so that terminal device (it can be mobile phone,
Computer, cloud server, air conditioner or network equipment etc.) method that executes each embodiment of the present invention.
The above is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills
Art field, is included within the scope of the present invention.
Claims (8)
1. a kind of method for opening television set child mode, which is characterized in that the method packet for opening television set child mode
Include step:
Acquisition for mobile terminal face characteristic image simultaneously estimates the corresponding age value of the face characteristic image;
Whether mobile terminal judges the age value within the scope of preset child age;
If the age value, within the scope of the child age, mobile terminal sends the finger for opening child mode to television set
It enables, for the corresponding audio, video data of child age range described in the television for play;Alternatively, if the age value is described
Within the scope of child age, then mobile terminal sends the age value to television set, for children described in the television for play year
The corresponding audio, video data of age range.
2. opening the method for television set child mode as described in claim 1, which is characterized in that the acquisition for mobile terminal people
Face characteristic image and the step of estimating the face characteristic image corresponding age value includes:
Acquisition for mobile terminal face characteristic image simultaneously pre-processes the face characteristic image;
The face characteristic parameter of the face characteristic image after acquisition for mobile terminal pretreatment;
Mobile terminal is estimated using the face characteristic parameter as the parameter of default age estimation function with obtaining the default age
Count the output valve of function;
Mobile terminal is using the output valve as the corresponding age value of the face characteristic image.
3. opening the method for television set child mode as claimed in claim 2, which is characterized in that the acquisition for mobile terminal people
Face characteristic image simultaneously carries out pretreated step to the face characteristic image:
Acquisition for mobile terminal current face characteristic image simultaneously carries out grayscale equalization processing to the face characteristic image;
Mobile terminal carries out graphical rule normalized to the face characteristic image after grayscale equalization processing.
4. opening the method for television set child mode as claimed in claim 2, which is characterized in that the acquisition for mobile terminal is pre-
The step of face characteristic parameter of the face characteristic image after processing includes:
The feature vector of the face characteristic image after acquisition for mobile terminal pretreatment;
Mobile terminal obtains corresponding face characteristic parameter according to described eigenvector.
5. opening the method for television set child mode as claimed in claim 4, which is characterized in that the acquisition for mobile terminal is pre-
The step of feature vector of the face characteristic image after processing includes:
Mobile terminal carries out feature extraction to the face characteristic image after pretreatment to obtain multiple characteristic images;
Mobile terminal carries out slicing operation to each characteristic image to obtain multiple block feature images and using part two respectively
Value pattern algorithm automatically extracts the histogram sequence of the block feature image;
The histogram sequence of multiple block feature images is connected into a vector by mobile terminal, as the face characteristic image
Feature vector.
6. opening the method for television set child mode as claimed in claim 5, which is characterized in that the mobile terminal is to pre- place
The face characteristic image after reason carries out the step of feature extraction is to obtain multiple characteristic images:
Mobile terminal carries out Gabor wavelet transformation to the face characteristic image after pretreatment, to obtain multiple Gabor width
It is worth image;
Mobile terminal carries out local binary patterns coding to each Gabor magnitude image respectively to obtain corresponding characteristic image.
7. a kind of method for opening television set child mode, which is characterized in that the method for opening television set child mode is also
Including:
When television set receives the age value of mobile terminal transmission, judge the age value whether in preset children year
Within the scope of age;
If the age value is within the scope of the child age, the corresponding audio-video of child age range described in television for play
Data.
8. a kind of system for opening television set child mode, which is characterized in that the system packet for opening television set child mode
Include mobile terminal and television set, wherein
The mobile terminal, for obtaining face characteristic image and estimating the corresponding age value of the face characteristic image, and
If within the scope of the child age, the instruction or age information for opening child mode are sent to television set for the age value;
The television set, for playing the youngster when receiving the instruction for the unlatching child mode that the mobile terminal is sent
The corresponding audio, video data of virgin the range of age;Alternatively, the television set is in the age value received in the child age range
When interior, the corresponding audio, video data of the child age range is played.
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CN201810528706.3A CN108881974A (en) | 2018-05-29 | 2018-05-29 | Open the method and system of television set child mode |
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