CN107231580A - Barrage display control unit and method - Google Patents
Barrage display control unit and method Download PDFInfo
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- CN107231580A CN107231580A CN201610779320.0A CN201610779320A CN107231580A CN 107231580 A CN107231580 A CN 107231580A CN 201610779320 A CN201610779320 A CN 201610779320A CN 107231580 A CN107231580 A CN 107231580A
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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
- H04N21/47—End-user applications
- H04N21/475—End-user interface for inputting end-user data, e.g. personal identification number [PIN], preference data
- H04N21/4756—End-user interface for inputting end-user data, e.g. personal identification number [PIN], preference data for rating content, e.g. scoring a recommended movie
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T5/00—Image enhancement or restoration
-
- 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
- H04N21/431—Generation of visual interfaces for content selection or interaction; Content or additional data rendering
- H04N21/4312—Generation of visual interfaces for content selection or interaction; Content or additional data rendering involving specific graphical features, e.g. screen layout, special fonts or colors, blinking icons, highlights or animations
-
- 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
Abstract
The present invention relates to a kind of barrage display control unit, including barrage display device, spectators' authentication device, high-definition camera and face image extraction equipment, face image extraction equipment is connected with high-definition camera, for extracting high definition face image from the high-definition image that high-definition camera is exported, spectators' authentication device is connected with face image extraction equipment and barrage display device respectively, and the control strategy to barrage display device is determined for the output based on face image extraction equipment.The present invention relates to a kind of barrage display control method.By means of the invention it is possible to improve the security of barrage display device.
Description
Technical field
The present invention relates to barrage control field, more particularly to a kind of barrage display control unit and method.
Background technology
For the user of barrage speech is delivered using video playback apparatus, vulgar speech influences whether other users
Experience.For the object that " barrage " is pointed to, it may invade to rights and interests such as their human dignity or reputation right.
Barrage speech there is likely to be another harm, and vulgar " barrage " speech can influence minor to grow up healthy and sound.Bullet
Curtain needs certain licensing scheme, is on the one hand in order at the consideration purified Internet environment；On the other hand, for minor,
See that these vulgar comments are inappropriate.In the prior art and in the absence of such licensing scheme.
For this reason, it may be necessary to which a kind of barrage display control scheme, introduces licensing scheme, only in existing barrage display device
Authorized user by approval can open barrage display device, and be rejected without the unauthorized user of approval and use barrage
Display device, so as to improve the degree of purification of network environment.
The content of the invention
In order to solve the above problems, the invention provides a kind of barrage display control unit and method, prior art is transformed
In barrage display control unit and method, by the network communications technology for introducing high-precision face recognition technology and high bandwidth
The authentication mechanism of a set of barrage display device is built, so as to avoid unauthorized user from being grasped using barrage display device into barrage
Make, this ensure that the speech in public space can abide by the law and public order and good custom.
According to an aspect of the present invention there is provided a kind of barrage display control unit, described device shows including barrage and set
Standby, spectators' authentication device, high-definition camera and face image extraction equipment, face image extraction equipment connect with high-definition camera
Connect, for extracting high definition face image from the high-definition image that high-definition camera is exported, spectators' authentication device respectively with face
Image zooming-out equipment and the connection of barrage display device, show to barrage for the output determination based on face image extraction equipment and set
Standby control strategy.
More specifically, in the barrage display control unit, including：Barrage display device, for providing bullet for spectators
Curtain display service；Spectators' authentication device, is connected with the more sub- equipment of characteristic vector, for receiving recognition of face pass signal
When, automatic start barrage display device is additionally operable to when receiving recognition of face failure signal, and automatic closing barrage, which is shown, to be set
It is standby；High-definition camera, is arranged on the front of set top box main body, is adopted for carrying out high-definition image to the spectators in front of set top box main body
Collection；Face image extraction equipment, is connected with high-definition camera, for extracting high definition face image from high-definition image；Contrast
Degree enhancing equipment, is connected with face image extraction equipment, for receiving high definition face image, and to the progress pair of high definition face image
Strengthen processing to obtain enhancing face image than degree；Gray processing processing equipment, is connected with contrast enhancing equipment, increases for receiving
Strong face image, and enhancing face image is carried out gray processing processing to obtain gray level image；Light adjusting device, with gray scale
Change processing equipment connection, for receiving gray level image, the gray value based on each pixel in gray level image determines gray processing
The mean flow rate of image, and the mean flow rate of gray level image and predetermined luminance are compared, when being averaged for gray level image
Brightness is more than or equal to predetermined luminance, and luminance-reduction adjustment is carried out to gray level image to obtain light adjustment image, works as gray processing
The mean flow rate of image is less than predetermined luminance, and luminance raising adjustment is carried out to gray level image to obtain light adjustment image；From
Recursive filtering processing equipment is adapted to, is connected with light adjusting device, for receiving light adjustment image, and image is adjusted to light
Adaptive recursive filtering processing is performed to obtain filtering image；Feature extracting device, sets with the processing of adaptive recursive filtering respectively
Standby and IP unpacks equipment connection, and the filtering image received is handled；Feature extracting device includes fluctuation threshold and selects son
The sub- equipment of equipment, processes pixel, the sub- equipment of matrix-split, the decimal system change sub- equipment, characteristic vector and obtain sub- equipment and feature
The more sub- equipment of vector；Fluctuation threshold selects sub- equipment to be connected with adaptive recursive filtering processing equipment, for calculating filtering figure
The complexity of picture, the complexity selection fluctuation threshold size based on filtering image, the complexity of filtering image is higher, the ripple of selection
Dynamic threshold value is bigger, and fluctuation threshold is positive number；The sub- equipment of processes pixel selects sub- equipment and adaptive recurrence with fluctuation threshold respectively
Filter processing apparatus is connected, for the image that accepts filter, for filtering image each pixel as object pixel perform with
Lower processing：The pixel centered on object pixel, obtains the object pixel matrix of 3 × 3 sizes, by object pixel in filtering image
Each pixel in matrix in addition to object pixel is compared as reference pixel with object pixel, to obtain binaryzation
Matrix, binaryzation matrix is 3 × 3 sizes, and binaryzation matrix is made up of 8 binaryzation pixels, and reference pixel is more than or equal to object
Pixel and fluctuation threshold sum, then the pixel value of the corresponding binaryzation pixel of reference pixel is 1, and reference pixel is less than object pixel
The difference after fluctuation threshold is subtracted, then the pixel value of the corresponding binaryzation pixel of reference pixel is ﹣ 1, the reference image of other values
The pixel value of the corresponding binaryzation pixel of element is 0；The sub- equipment of matrix-split is connected with the sub- equipment of processes pixel, for by each
The corresponding binaryzation matrix conversion of object pixel is into a positive binaryzation matrix and a negative binaryzation matrix, positive binaryzation matrix
Be made up of 8 binaryzation pixel values, negative binaryzation matrix is also made up of 8 binaryzation pixel values, positive binaryzation matrix it is each
The binaryzation pixel value that individual binaryzation pixel value subtracts negative binaryzation matrix relevant position can obtain correspondence binaryzation matrix phase
Answer the pixel value of the binaryzation pixel of position；The decimal system is changed sub- equipment and is connected with the sub- equipment of matrix-split, for by each
All binaryzation pixel values of the corresponding positive binaryzation matrix of object pixel are by its position in positive binaryzation matrix with a first left side
First up and then down order constitutes a binary number as the positive binary number of target to rear right again, then the positive binary number of target is converted
Into decimal number as the positive decimal number of target, to be additionally operable to all of the corresponding negative binaryzation matrix of each object pixel
Binaryzation pixel value constitutes one two with first left and then right first up and then down order again by its position in negative binaryzation matrix and entered
Number processed changes into decimal number to bear decimal number as target as target negative binary number, then by target negative binary number；
Characteristic vector obtains sub- equipment and is connected respectively with adaptive recursive filtering processing equipment and the sub- equipment of decimal system conversion, for that will filter
The pixel value of each object pixel is substituted for the corresponding positive goal decimal number of the object pixel and according to object in ripple image
The corresponding positive goal decimal number of all object pixels is constituted positive one-dimensional characteristic vector by position of the pixel in filtering image, is made
Exported for positive goal characteristic vector, be additionally operable to the pixel value of the object pixel of each in filtering image being substituted for the object pixel
Corresponding negative target decimal number and according to position of the object pixel in filtering image by the corresponding negative mesh of all object pixels
Decimal number composition negative one dimensional feature vector is marked, is exported as negative target feature vector；The more sub- equipment of characteristic vector respectively with
Characteristic vector obtains sub- equipment and IP unpacks equipment connection, for by positive goal characteristic vector respectively with the positive feature of each benchmark to
Amount matched, by negative target feature vector respectively with each benchmark negative feature vector matched, the two all the match is successful and
The corresponding authorized user's title of the positive characteristic vector of benchmark matched is used with corresponding authorize of benchmark negative feature vector matched
When name in an account book claims identical, then recognition of face pass signal and authorized user corresponding with the positive characteristic vector of the benchmark matched are exported
Title, otherwise will export recognition of face failure signal；IP unpacks equipment, for being connected with long-range data server network, leads to
IP packet of the network reception at data server is crossed, and IP packets are unpacked to obtain 6LowPAN packets；Edge
Sensing equipment, unpacks equipment with IP and is connected, the 6LowPAN packets of equipment output are unpacked for receiving IP, acquisition is rendered as pressure
The head of the 6LowPAN packets of contracting data, is decompressed with the 6LowPAN numbers after being decompressed to the head of 6LowPAN packets
According to the head in bag；6LowPAN unpacks equipment, is connected with edge sensing equipment, for receiving 6LowPAN packets to obtain
Load in 6LowPAN packets, and based on the head in the 6LowPAN packets after decompression in 6LowPAN packets
Load is parsed, to obtain the positive characteristic vector of each benchmark and each benchmark negative feature vector；Wherein, IP packets are pair
6LowPAN packets beat the load in the packet obtained after IP bags, 6LowPAN packets including at data server
The positive characteristic vector of each benchmark and each benchmark negative feature vector, the head in 6LowPAN packets is compressed data, decompression
The head in 6LowPAN packets afterwards is used to parse the load in 6LowPAN packets；Wherein, each benchmark
Positive characteristic vector is to carry out the positive feature with feature extracting device same operation in advance to corresponding authorized user's benchmark face-image
The vector that vector is extracted and obtained, each benchmark negative feature vector is that corresponding authorized user's benchmark face-image is carried out in advance
The vector for extracting and obtaining with the negative feature vector of feature extracting device same operation.
More specifically, in the barrage display control unit：High-definition camera also includes photoflash controller and flash of light
Lamp.
More specifically, in the barrage display control unit：High-definition camera also includes luminance sensor, for detecting
Real time environment brightness.
More specifically, in the barrage display control unit：Photoflash controller is dodged based on real time environment brilliance control
The opening and closing of light lamp.
More specifically, in the barrage display control unit：Photoflash controller is dodged based on real time environment brilliance control
The opening and closing of light lamp includes：When real time environment brightness is more than predetermined luminance threshold value, flash lamp is closed.
More specifically, in the barrage display control unit：Photoflash controller is dodged based on real time environment brilliance control
The opening and closing of light lamp includes：When real time environment brightness is less than or equal to predetermined luminance threshold value, flash lamp is opened and according to real time environment
The flash luminance of brightness adjustment flash lamp, real time environment brightness is lower, and the flash luminance of flash lamp is higher.
According to another aspect of the present invention, a kind of barrage display control method is additionally provided, methods described includes being used to take
Build barrage display control unit.
Brief description of the drawings
Embodiment of the present invention is described below with reference to accompanying drawing, wherein：
Fig. 1 is the block diagram of the barrage display control unit according to embodiment of the present invention.
Reference：1 barrage display device；2 spectators' authentication devices；3 high-definition cameras；4 face image extraction equipments
Embodiment
The embodiment to the barrage display control unit of the present invention is described in detail below with reference to accompanying drawings.
Barrage (barrage), Chinese vogue word, original meaning refers to provides intensive bombardment with a large amount of or a small amount of cannon.It is a large amount of with
The comment that captions form is shown is while the phenomenon occurred is also referred to as barrage.
Barrage video system is derived from Japanese barrage video sharing website (niconico animations), and domestic introduce first is
AcFun (content masses are polynary) and later bilibili (newborn Quadratic Finite Element to barrage net).
It is a large amount of tell groove comment from screen sail when effect look like barrage in flight shooting game, so NICO nets
The people have the substantial amounts of effect told when groove comment occurs to do barrage by this.In China, original only a large amount of comments occur just simultaneously
Barrage can be, but as misuse wall scroll comment can also be barrage.
It is typically considered to be intended that gun intensive in military speak at home, it is excessively intensive so that pitching a tent as one
Cloth is the same.English claims " Bullet Hell " (bullet hell) or " Bullet Curtain " (barrage).Barrage is militarily in fact
Refer to tactics when artillery policy (barrage) rather than infantry tactics or air defense shooting.Then, spool shooting game and clear version
Game is referred to as barrage game or barrage game because all having this feature mostly.With the end of last century《East
Project》To represent, with being played this making type commonly using barrage in people's game, this be barrage this word most
The early source for entering ACGN circle.
At present, barrage has become a kind of characteristic of specific player, and barrage system is then the core of barrage player.
However, because if barrage is without correct guiding, its speech environment developed will bring certain social harm, because
This is, it is necessary to increase barrage display device authentication mechanism to ensure that only authorized user can use opening barrage display device to enter
Row barrage is operated.In the prior art and in the absence of such authentication scheme.
In order to overcome above-mentioned deficiency, the present invention has built a kind of barrage display control unit, around barrage display device
Increase image scene data acquisition equipment, live face characteristic matching unit and field network data communications equipment, so as to build
Personnel's authentication mechanism is controlled to the switch of barrage display device.
Fig. 1 is the block diagram of the barrage display control unit according to embodiment of the present invention, described device bag
Include barrage display device, spectators' authentication device, high-definition camera and face image extraction equipment, face image extraction equipment and height
Clear camera connection, for extracting high definition face image, spectators' authentication device from the high-definition image that high-definition camera is exported
It is connected respectively with face image extraction equipment and barrage display device, for the output determination pair based on face image extraction equipment
The control strategy of barrage display device.
Then, continue that the concrete structure of the barrage display control unit of the present invention is further detailed.
Described device includes：Barrage display device, for providing barrage display service for spectators；Spectators' authentication device, with
The more sub- equipment connection of characteristic vector, for when receiving recognition of face pass signal, automatic start barrage display device to be gone back
It is automatic to close barrage display device for when receiving recognition of face failure signal.
Described device includes：High-definition camera, is arranged on the front of set top box main body, in front of to set top box main body
Spectators carry out high-definition image collection；Face image extraction equipment, is connected with high-definition camera, for being extracted from high-definition image
High definition face image.
Described device includes：Contrast strengthens equipment, is connected with face image extraction equipment, for receiving high definition face figure
Picture, and high definition face image is carried out contrast enhancement processing to obtain enhancing face image；Gray processing processing equipment, with contrast
Degree enhancing equipment connection, carries out gray processing processing to obtain gray scale for receiving enhancing face image, and to enhancing face image
Change image.
Described device includes：Light adjusting device, is connected with gray processing processing equipment, for receiving gray level image, base
The gray value of each pixel determines the mean flow rate of gray level image in gray level image, and by the average bright of gray level image
Degree is compared with predetermined luminance, and when the mean flow rate of gray level image is more than or equal to predetermined luminance, gray level image is carried out
Luminance-reduction adjustment is to obtain light adjustment image, when the mean flow rate of gray level image is less than predetermined luminance, to gray processing figure
Adjusted as carrying out luminance raising to obtain light adjustment image.
Described device includes：Adaptive recursive filtering processing equipment, is connected with light adjusting device, is adjusted for receiving light
Whole image, and light adjustment image is performed adaptive recursive filtering processing to obtain filtering image.
Described device includes：Feature extracting device, unpacks equipment with adaptive recursive filtering processing equipment and IP respectively and connects
Connect, the filtering image received is handled；Feature extracting device includes fluctuation threshold and selects sub- equipment, processes pixel to set
The sub- equipment of standby, matrix-split, the decimal system change sub- equipment, characteristic vector and obtain sub- equipment and the more sub- equipment of characteristic vector；Ripple
Dynamic threshold value selects sub- equipment to be connected with adaptive recursive filtering processing equipment, the complexity for calculating filtering image, based on filter
The complexity selection fluctuation threshold size of ripple image, the complexity of filtering image is higher, and the fluctuation threshold of selection is bigger, fluctuates threshold
It is worth for positive number；The sub- equipment of processes pixel selects sub- equipment and adaptive recursive filtering processing equipment to be connected with fluctuation threshold respectively,
For the image that accepts filter, each pixel for filtering image is handled as object pixel execution is following：With object pixel
Centered on pixel, in filtering image obtain 3 × 3 sizes object pixel matrix, by object pixel matrix except subject image
Each pixel outside element is compared as reference pixel with object pixel, to obtain binaryzation matrix, binaryzation matrix
For 3 × 3 sizes, binaryzation matrix is made up of 8 binaryzation pixels, reference pixel be more than or equal to object pixel and fluctuation threshold it
With, then the pixel value of the corresponding binaryzation pixel of reference pixel be 1, reference pixel is subtracted after fluctuation threshold less than object pixel
Difference, then the pixel value of the corresponding binaryzation pixel of reference pixel is ﹣ 1, the corresponding binaryzation picture of reference pixel of other values
The pixel value of element is 0；The sub- equipment of matrix-split is connected with the sub- equipment of processes pixel, for by each object pixel corresponding two
Value matrix conversion is into a positive binaryzation matrix and a negative binaryzation matrix, and positive binaryzation matrix is by 8 binaryzation pixels
Value composition, negative binaryzation matrix is also made up of 8 binaryzation pixel values, and each binaryzation pixel value of positive binaryzation matrix subtracts
The binaryzation picture of correspondence binaryzation matrix relevant position can be obtained by removing the binaryzation pixel value of negative binaryzation matrix relevant position
The pixel value of element；The decimal system is changed sub- equipment and is connected with the sub- equipment of matrix-split, for each object pixel is corresponding just
All binaryzation pixel values of binaryzation matrix are by its position in positive binaryzation matrix with first left and then right first up and then down again
Order constitute a binary number as the positive binary number of target, then by the positive binary number of target change into decimal number using as
The positive decimal number of target, is additionally operable to all binaryzation pixel values by the corresponding negative binaryzation matrix of each object pixel by it
Position in negative binaryzation matrix constitutes a binary number using first left and then right first up and then down order again and is used as target minus two
System number, then target negative binary number is changed into decimal number to bear decimal number as target；Characteristic vector obtains son and set
Back-up is not changed sub- equipment with adaptive recursive filtering processing equipment and the decimal system and is connected, for each in filtering image is right
As the pixel value of pixel is substituted for the corresponding positive goal decimal number of the object pixel and according to object pixel in filtering image
Position the corresponding positive goal decimal number of all object pixels is constituted into positive one-dimensional characteristic vector, be used as positive goal characteristic vector
Output, is additionally operable to the pixel value of the object pixel of each in filtering image being substituted for the corresponding negative target ten of the object pixel and
The corresponding negative target decimal number of all object pixels is simultaneously constituted negative by number processed according to position of the object pixel in filtering image
One-dimensional characteristic vector, is exported as negative target feature vector；The more sub- equipment of characteristic vector obtains son with characteristic vector respectively and set
Standby and IP unpacks equipment connection, for positive goal characteristic vector to be matched with the positive characteristic vector of each benchmark respectively, will be negative
Target feature vector is matched with each benchmark negative feature vector respectively, and all the match is successful and the benchmark that matches is just special for the two
It is when to levy vectorial corresponding authorized user's title identical with the corresponding authorized user's title of benchmark negative feature vector matched, then defeated
Go out recognition of face pass signal and authorized user's title corresponding with the positive characteristic vector of the benchmark matched, otherwise will export people
Face recognition failures signal.
Described device includes：IP unpack equipment, for being connected with long-range data server network, by network reception come
Unpack to obtain 6LowPAN packets from the IP packets at data server, and to IP packets.
Described device includes：Edge sensing equipment, unpacks equipment with IP and is connected, and equipment output is unpacked for receiving IP
6LowPAN packets, obtain the head for the 6LowPAN packets for being rendered as compressed data, and the head of 6LowPAN packets is solved
Pressure is with the head in the 6LowPAN packets after being decompressed.
Described device includes：6LowPAN unpacks equipment, is connected with edge sensing equipment, for receiving 6LowPAN packets
To obtain the load in 6LowPAN packets, and based on the head in the 6LowPAN packets after decompression to 6LowPAN data
Load in bag is parsed, to obtain the positive characteristic vector of each benchmark and each benchmark negative feature vector.
Wherein, IP packets are that 6LowPAN packets are carried out to beat the packet obtained after IP bags, 6LowPAN data
Load in bag includes the positive characteristic vector of each benchmark and each benchmark negative feature vector at data server, 6LowPAN numbers
It is that head in the 6LowPAN packets after compressed data, decompression is used for negative in 6LowPAN packets according to the head in bag
It is loaded into capable parsing.
Wherein, the positive characteristic vector of each benchmark is that corresponding authorized user's benchmark face-image is carried out in advance to carry with feature
The positive characteristic vector pickup of taking equipment same operation and the vector obtained, each benchmark negative feature vector are that corresponding authorize is used
Family benchmark face-image carries out the vector for extracting and obtaining with the negative feature vector of feature extracting device same operation in advance.
Alternatively, in the control platform：High-definition camera also includes photoflash controller and flash lamp；High-definition camera
Head also includes luminance sensor, for detecting real time environment brightness；Photoflash controller is glistened based on real time environment brilliance control
The opening and closing of lamp；Opening and closing of the photoflash controller based on real time environment brilliance control flash lamp includes：When real time environment brightness is more than
During predetermined luminance threshold value, flash lamp is closed；Opening and closing of the photoflash controller based on real time environment brilliance control flash lamp includes：When
When real time environment brightness is less than or equal to predetermined luminance threshold value, flash lamp is opened and according to the sudden strain of a muscle of real time environment brightness adjustment flash lamp
Brightness, real time environment brightness is lower, and the flash luminance of flash lamp is higher.
In order to overcome above-mentioned deficiency, present invention also offers a kind of barrage display control method, methods described includes being used for
Build barrage display control unit.
In addition, wave filter, is the device filtered to ripple as its name suggests." ripple " is that a physics widely is general
Read, in electronic technology field, " ripple " is narrowly confined to refer in particular to the value for describing various physical quantitys with time fluctuations
Process.The process is converted into the function of time of voltage or electric current by the effect of various kinds of sensors, referred to as various physical quantitys
Time waveform, or referred to as signal.Because the independent variable time is continuous value, referred to as continuous time signal,
Habitually it is referred to as analog signal again.
With digital electronic computer technology generation and develop rapidly, for the ease of computer to signal at
Reason, generates the complete theory and method that continuous time signal is transformed into discrete-time signal under sampling theorem guidance.
That is, primary signal only can be expressed without losing with sample value of the original analog signal on series of discrete time coordinate point
Lose any information since the expression of ripple, waveform, signal these concepts be various physical quantitys in objective world change, naturally
It is the carrier for the various information that modern society depends on for existence.Information needs to propagate, and what is leaned on is exactly the transmission of waveform signal.Signal exists
Its generation, conversion, each link of transmission may be distorted due to the presence of environment and interference, even quite a lot of
In the case of, this distortion is also very serious, causes signal and its entrained information is embedded among noise dearly.In order to
These noises are filtered out, recover the signal of script, it is necessary to be filtered processing using various wave filters.
Using the barrage display control unit and method of the present invention, it can not automatically control barrage for prior art and show and set
The technical problem of standby switch, by introducing high-precision authorizing personnel's mechanism around video playback apparatus so that only authorize
User can open barrage display device and carry out barrage operation, so as to ensure to issue the quality of the user of barrage speech, purification is worked as
Preceding network environment.
Although it is understood that the present invention is disclosed as above with preferred embodiment, but above-described embodiment and being not used to
Limit the present invention.For any those skilled in the art, without departing from the scope of the technical proposal of the invention,
Many possible variations and modification are all made to technical solution of the present invention using the technology contents of the disclosure above, or are revised as
With the equivalent embodiment of change.Therefore, every content without departing from technical solution of the present invention, the technical spirit pair according to the present invention
Any simple modifications, equivalents, and modifications made for any of the above embodiments, still fall within the scope of technical solution of the present invention protection
It is interior.
Claims (8)
1. a kind of barrage display control unit, described device include barrage display device, spectators' authentication device, high-definition camera and
Face image extraction equipment, face image extraction equipment is connected with high-definition camera, for the high definition exported from high-definition camera
High definition face image is extracted in image, spectators' authentication device connects with face image extraction equipment and barrage display device respectively
Connect, the control strategy to barrage display device is determined for the output based on face image extraction equipment.
2. barrage display control unit as claimed in claim 1, it is characterised in that described device includes：
Barrage display device, for providing barrage display service for spectators；
Spectators' authentication device, is connected with the more sub- equipment of characteristic vector, for when receiving recognition of face pass signal, automatically
Start barrage display device, be additionally operable to when receiving recognition of face failure signal, it is automatic to close barrage display device；
High-definition camera, is arranged on the front of set top box main body, for carrying out high-definition image to the spectators in front of set top box main body
Collection；
Face image extraction equipment, is connected with high-definition camera, for extracting high definition face image from high-definition image；
Contrast strengthens equipment, is connected with face image extraction equipment, schemes for receiving high definition face image, and to high definition face
Picture carries out contrast enhancement processing to obtain enhancing face image；
Gray processing processing equipment, is connected with contrast enhancing equipment, for receiving enhancing face image, and to enhancing face image
Gray processing processing is carried out to obtain gray level image；
Light adjusting device, is connected with gray processing processing equipment, for receiving gray level image, based on each in gray level image
The gray value of pixel determines the mean flow rate of gray level image, and the mean flow rate of gray level image and predetermined luminance are compared
Compared with when the mean flow rate of gray level image is more than or equal to predetermined luminance, carrying out luminance-reduction to gray level image adjusts to obtain
Light adjusts image, and when the mean flow rate of gray level image is less than predetermined luminance, luminance raising adjustment is carried out to gray level image
To obtain light adjustment image；
Adaptive recursive filtering processing equipment, is connected with light adjusting device, for receiving light adjustment image, and light is adjusted
Whole image performs adaptive recursive filtering processing to obtain filtering image；
Feature extracting device, unpacks equipment with adaptive recursive filtering processing equipment and IP respectively and is connected, the filtering to receiving
Image is handled；Feature extracting device includes fluctuation threshold and selects sub- equipment, the sub- equipment of processes pixel, matrix-split to set
The standby, decimal system changes sub- equipment, characteristic vector and obtains sub- equipment and the more sub- equipment of characteristic vector；Fluctuation threshold selects sub- equipment
It is connected with adaptive recursive filtering processing equipment, the complexity for calculating filtering image, the complexity choosing based on filtering image
Fluctuation threshold size is selected, the complexity of filtering image is higher, and the fluctuation threshold of selection is bigger, and fluctuation threshold is positive number；At pixel
Manage sub- equipment selects sub- equipment and adaptive recursive filtering processing equipment to be connected with fluctuation threshold respectively, for the figure that accepts filter
Picture, each pixel for filtering image is handled as object pixel execution is following：The pixel centered on object pixel, in filter
The object pixel matrix of 3 × 3 sizes is obtained in ripple image, by each picture in object pixel matrix in addition to object pixel
Element is compared as reference pixel with object pixel, and to obtain binaryzation matrix, binaryzation matrix is 3 × 3 sizes, binaryzation
Matrix is made up of 8 binaryzation pixels, and reference pixel is more than or equal to object pixel and fluctuation threshold sum, then reference pixel correspondence
Binaryzation pixel pixel value be 1, reference pixel subtracts the difference after fluctuation threshold less than object pixel, then reference pixel pair
The pixel value for the binaryzation pixel answered is ﹣ 1, and the pixel value of the corresponding binaryzation pixel of reference pixel of other values is 0；Matrix
Molecular Devices are torn open to be connected with the sub- equipment of processes pixel, for by the corresponding binaryzation matrix conversion of each object pixel into one
Positive binaryzation matrix and a negative binaryzation matrix, positive binaryzation matrix are made up of 8 binaryzation pixel values, bear binaryzation matrix
Also it is made up of 8 binaryzation pixel values, it is corresponding that each binaryzation pixel value of positive binaryzation matrix subtracts negative binaryzation matrix
The binaryzation pixel value of position can obtain the pixel value of the binaryzation pixel of correspondence binaryzation matrix relevant position；The decimal system turns
Change sub- equipment to be connected with the sub- equipment of matrix-split, for by all two-values of the corresponding positive binaryzation matrix of each object pixel
Change pixel value and one binary number is constituted with first left and then right first up and then down order again by its position in positive binaryzation matrix
Decimal number is changed into as the positive decimal number of target, also to use as the positive binary number of target, then by the positive binary number of target
It is pressed in negative binaryzation matrix in all binaryzation pixel values of the corresponding negative binaryzation matrix by each object pixel
Position constitutes a binary number as target negative binary number using first left and then right first up and then down order again, then by target minus two
System number changes into decimal number to bear decimal number as target；Characteristic vector obtains sub- equipment and filtered respectively with adaptive recurrence
Ripple processing equipment and the decimal system change sub- equipment connection, for the pixel value of the object pixel of each in filtering image to be substituted for
The corresponding positive goal decimal number of the object pixel and according to position of the object pixel in filtering image by all object pixels
Corresponding positive goal decimal number constitutes positive one-dimensional characteristic vector, is exported as positive goal characteristic vector, is additionally operable to scheme filtering
The pixel value of each object pixel is substituted for the corresponding negative target decimal number of the object pixel and according to object pixel as in
The corresponding negative target decimal number of all object pixels is constituted negative one dimensional feature vector by the position in filtering image, as negative
Target feature vector is exported；The more sub- equipment of characteristic vector obtains sub- equipment with characteristic vector respectively and IP unpacks equipment and is connected,
For positive goal characteristic vector to be matched with the positive characteristic vector of each benchmark respectively, by negative target feature vector respectively with respectively
Individual benchmark negative feature vector is matched, and all the match is successful and the corresponding authorized user of the positive characteristic vector of benchmark that matches for the two
When title is identical with the corresponding authorized user's title of benchmark negative feature vector matched, then export recognition of face pass signal with
And authorized user's title corresponding with the positive characteristic vector of the benchmark matched, it otherwise will export recognition of face failure signal；
IP unpacks equipment, for being connected with long-range data server network, is received by network at data server
IP packets, and IP packets are unpacked to obtain 6LowPAN packets；
Edge sensing equipment, unpacks equipment with IP and is connected, the 6LowPAN packets of equipment output are unpacked for receiving IP, are obtained
The head of the 6LowPAN packets of compressed data is rendered as, after decompressing the heads of 6LowPAN packets to be decompressed
Head in 6LowPAN packets；
6LowPAN unpacks equipment, is connected with edge sensing equipment, for receiving 6LowPAN packets to obtain 6LowPAN data
Load in bag, and the load in 6LowPAN packets is solved based on the head in the 6LowPAN packets after decompression
Analysis, to obtain the positive characteristic vector of each benchmark and each benchmark negative feature vector；
Wherein, IP packets are that 6LowPAN packets are carried out to beat in the packet obtained after IP bags, 6LowPAN packets
Load include the positive characteristic vector of each benchmark at data server and each benchmark negative feature vector, 6LowPAN packets
In head be that head in the 6LowPAN packets after compressed data, decompression is used to enter the load in 6LowPAN packets
Row parsing；
Wherein, the positive characteristic vector of each benchmark is that corresponding authorized user's benchmark face-image is carried out in advance to set with feature extraction
The vector obtained for the positive characteristic vector pickup of same operation, each benchmark negative feature vector is to corresponding authorized user's base
Quasi- face-image carries out the vector for extracting and obtaining with the negative feature vector of feature extracting device same operation in advance.
3. barrage display control unit as claimed in claim 2, it is characterised in that：
High-definition camera also includes photoflash controller and flash lamp.
4. barrage display control unit as claimed in claim 3, it is characterised in that：
High-definition camera also includes luminance sensor, for detecting real time environment brightness.
5. barrage display control unit as claimed in claim 4, it is characterised in that：
Opening and closing of the photoflash controller based on real time environment brilliance control flash lamp.
6. barrage display control unit as claimed in claim 5, it is characterised in that：
Opening and closing of the photoflash controller based on real time environment brilliance control flash lamp includes：When real time environment brightness is bright more than default
When spending threshold value, flash lamp is closed.
7. barrage display control unit as claimed in claim 5, it is characterised in that：
Opening and closing of the photoflash controller based on real time environment brilliance control flash lamp includes：When real time environment brightness is less than or equal in advance
If during luminance threshold, opening flash lamp and according to the flash luminance of real time environment brightness adjustment flash lamp, real time environment brightness is got over
Low, the flash luminance of flash lamp is higher.
8. a kind of barrage display control method, for building the barrage display control unit as described in claim 1-5 is any.
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| CN111800664A (en) * | 2019-09-23 | 2020-10-20 | 赵家琦 | Content selection mechanism based on signal analysis |
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