CN106199133A - Current sample processing platform - Google Patents
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- CN106199133A CN106199133A CN201610481277.XA CN201610481277A CN106199133A CN 106199133 A CN106199133 A CN 106199133A CN 201610481277 A CN201610481277 A CN 201610481277A CN 106199133 A CN106199133 A CN 106199133A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/0092—Arrangements for measuring currents or voltages or for indicating presence or sign thereof measuring current only
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T5/00—Image enhancement or restoration
- G06T5/70—Denoising; Smoothing
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V10/00—Arrangements for image or video recognition or understanding
- G06V10/40—Extraction of image or video features
- G06V10/50—Extraction of image or video features by performing operations within image blocks; by using histograms, e.g. histogram of oriented gradients [HoG]; by summing image-intensity values; Projection analysis
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V10/00—Arrangements for image or video recognition or understanding
- G06V10/40—Extraction of image or video features
- G06V10/56—Extraction of image or video features relating to colour
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/10—Image acquisition modality
- G06T2207/10024—Color image
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/20—Special algorithmic details
- G06T2207/20021—Dividing image into blocks, subimages or windows
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- G—PHYSICS
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- G06T2207/20—Special algorithmic details
- G06T2207/20024—Filtering details
- G06T2207/20032—Median filtering
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Abstract
The present invention relates to a kind of current sample processing platform, including current transformer and sample circuit, civil power access interface and current signal conditioning circuit, civil power access interface is connected with the line of projection room position, for receiving the Alternating Current Power Supply signal of line input, current transformer and sample circuit, with the A phase line in line, B phase line and C phase line connect, for to A phase line, current signal in B phase line and C phase line is sampled respectively, current signal conditioning circuit, it is connected with current transformer and sample circuit, for sampling current is carried out signal condition.By means of the invention it is possible to accurately perform sampling and the process of the mains current to projection room accesses.
Description
Technical field
The present invention relates to current sample field, particularly relate to a kind of current sample processing platform.
Background technology
Currently, the behavior of taking on the sly of the performance occasions such as cinema, theater, arenas, projection room or theatre is very serious, due to
The development of camera technique and the development of image processing techniques, the quality of image taken on the sly in scene is the highest, it is easy to be used for carrying out net
Network is sold or dish at quarter is sold, and so by the pressure of serious blow legal copy operator, brings certain negative effect to industry development.
Such as, according to the record of Motion Picture Association of America, movie piracy makes film industry lose up to 6,000,000,000 dollars every year.
Movie piracy has far-reaching influence to whole economic sectors, to such an extent as to he is identified a kind of in each country
Criminal behavior.And a kind of main source of pirated film images exactly and takes on the sly, or pass through in projection room to move the most at the cinema
Dynamic equipment carries out film and takes on the sly.Although BBC reports major part, movie piracy may be from industry internal staff and is supplied to shadow
Comment the film duplicates in advance of people, but shooting is taken on the sly and remained the online pirate important sources sold.In nearest decades,
The development of Internet bandwidth and point-to-point protocol all promotes the further circulation of pirated film.
In order to detect the digital multimedia video of uncommitted illegal propagation, digital watermark by universal research and should
With extensively.In Making Movies or film ejection stage, can take to implant in film to make human eye can't see " pattern " information
Method.If these films are taken on the sly record by video camera, this collection of illustrative plates embedded can be extracted and identify piracy
Source.
Some industry leaders are in order to identify and tracing pirate film, it is proposed that by the method for Coded Anti-Piracy (CAP),
I.e. in film, increase watermark.First Coded Anti-Piracy is designed by Kodak, Deluxe Laboratories pair subsequently
It improves.Philips it is also proposed a mark system being named as CineFence in 2006.But, digital watermark is only
Being a kind of passive measure, he can not eliminate and stop shooting to take on the sly.On the other hand, camera perturbation technique is intended to by serious broken
Bad film visual quality eliminates shooting and takes on the sly, to make these interference signals not interfere with the spectators of movie theatre simultaneously.
The most substantial amounts of camera interference method mainly make use of imaging sensor to respond ultrared principle.In order to disturb shifting
Moving video camera and generate light in the picture of shooting, infrared emitter is installed in cinema.Except those emitters
Etc. extra cost price and regular job expense, this scheme can be by enclosing suitable filter on camera lens.But it is this
Mode is easy to be avoided because of the selection of the person of taking on the sly.
Accordingly, it would be desirable to the anti-mechanism of taking on the sly in a kind of new performance place, it is possible to auditorium image is carried out electronic analysis, to existing
Field performance environment carries out electronic analysis, and carries out the person's of taking on the sly judgement based on two kinds of analysis results, it addition, be additionally based upon the position of the person of taking on the sly
The person of taking on the sly is reminded by confidence breath, thus realizes oriented detection and the orientation warning of the on-the-spot person of taking on the sly of performance.
Summary of the invention
In order to solve the problems referred to above, the invention provides a kind of current sample processing platform, auditorium figure is set at the scene
As collecting device completes the extraction to auditorium image, introduce various image processing equipment and image analysis equipment judges auditorium
Whether image exists the suspicious person of taking on the sly, in the case of there is the suspicious person of taking on the sly, extracts the suspicious person of taking on the sly place
The numbering at seat, detects ambient parameter or current performance content, to take on the sly according to suspicious the most at the scene in real time
Information and the Site Detection result of person determine the person that really do not takes on the sly, it is even more important that establish a set of can be according to the person of taking on the sly position
Put the mechanism being oriented prompting, thus completely automatically realize the detection of the electronic type to the person of taking on the sly and warning.
According to an aspect of the present invention, it is provided that a kind of current sample processing platform, described platform includes current transformer
And the line of sample circuit, civil power access interface and current signal conditioning circuit, civil power access interface and projection room position
Connect, for receiving the A in the Alternating Current Power Supply signal of line input, current transformer and sample circuit, with line
Phase line, B phase line and C phase line connect, for entering the current signal in A phase line, B phase line and C phase line respectively
Row sampling, current signal conditioning circuit, it is connected with current transformer and sample circuit, for sampling current is carried out signal tune
Reason.
More specifically, in described current sample processing platform, including: projection room content acquisition equipment, it is arranged on projection
Curtain opposite, room, the scene image on Real-time Collection projection room curtain is to export as real-time scene image；Content analysis
Equipment, the Background control being arranged on projection room is indoor, is connected with sub-screen analytical equipment and projection room content acquisition equipment respectively,
For receiving real-time scene image, it is additionally operable to receive the seat numbering of each screen subimage and its correspondence, by each screen
Curtain subimage and real-time scene image carry out content matching to determine content matching percentage ratio, when content matching percentage ratio is more than
When preset percentage threshold value, using seat numbering corresponding for screen subimage as targeted seat numbering output；Wherein, content is divided
Each screen subimage and real-time scene image are carried out content matching to determine that content matching percentage ratio specifically wraps by desorption device
Include: each pixel in real-time scene image is carried out pixel value with each pixel of each screen subimage and mates, pixel
The quantity of the value pixel that the match is successful is the most, and the content matching percentage ratio that screen subimage is corresponding is the highest；At Freescale IMX6
Reason equipment, the Background control being arranged on projection room is indoor, is connected with Content analysis apparatus, for sending based on targeted seat numbering
Drive control signal including targeted seat numbering；Orientation equipment, the Background control being arranged on projection room is indoor, with Freescale
IMX6 processing equipment connects, and for resolving to determine that targeted seat is numbered to drive control signal, compiles based on targeted seat
Number to alarm signal of taking pictures with targeted seat prompting mechanism corresponding to numbering and two-way speaker transmission；Prompting mechanism, each
Arranging one on individual spectators seat, position is in the rear of the spectators seat correspondence chair back, including spring, expansion controller and wooden
Protrusion member, wooden protrusion member is arranged on the front of spring, and expansion controller is connected with orientation equipment, for controlling spring
Stretch and shrink；Wherein, expansion controller stretches spring to realize wooden protrusion member pair when receiving and taking pictures alarm signal
Tapping of spectators' back；Two-way speaker, each spectators seat arranges one, and position is in spectators seat correspondence handrail
In, it is connected with orientation equipment, for playing the voice document corresponding with no photographing when receiving and taking pictures alarm signal；CMOS
Sensing equipment, is arranged on middle position, projection room roof, for based on the prefixed time interval spectators to projection room curtain opposite
Seat carries out sequential image acquisition with continuous print auditorium image on output time, wherein prefixed time interval selected from 0.5 second to 0.1
Between Miao；Pre-detection equipment, is connected with CMOS sensing equipment, is used for receiving current auditorium image and former frame auditorium figure
Picture, calculates the average brightness value of current auditorium image as the first brightness value, calculates the brightest of former frame auditorium image
Angle value, as the second brightness value, when the first brightness value and the second brightness value are both greater than equal to predetermined luminance threshold value, send and takes on the sly
Early warning signal, is sent to current auditorium image gray processing processing equipment, otherwise, sends and normally watch signal, and stopping ought
Front auditorium image is sent to gray processing processing equipment；Gray processing processing equipment, is connected with pre-detection equipment, including channel parameters
Extraction unit, weighted value memory element and gray value computing unit, channel parameters extraction unit is used for receiving current auditorium figure
Picture, extracts the R passage pixel value of each pixel in the image of current auditorium, G passage pixel value and channel B pixel value,
Weighted value memory element is used for having prestored R channel weighting value, G channel weighting value and channel B weighted value, and gray value calculates single
Unit is connected with channel parameters extraction unit and weighted value memory element respectively, for each pixel in the image of current auditorium
Point, by R passage pixel value and the product of R channel weighting value, the product of G passage pixel value and G channel weighting value and channel B picture
Element value and the product addition of channel B weighted value with obtain for the gray value of pixel, and based in the image of current auditorium
The gray value of each pixel obtains the gray level image that current auditorium image is corresponding；Wherein, R channel weighting value value is
0.298839, G channel weighting value value is 0.586811, and channel B weighted value value is 0.114350；Histogram distribution detection sets
Standby, be connected with gray processing processing equipment, be used for receiving gray level image, and gray level image is carried out grey level histogram process with
Obtain corresponding histogram image, when histogram image presents bimodal distribution, send global threshold and select signal, otherwise, send out
Go out non-global threshold and select signal；Threshold value selects equipment, is connected with histogram distribution detection equipment, for receiving overall situation threshold
When value selects signal, global threshold 128 is exported as threshold data, when receiving non-global threshold and selecting signal, by phase
Adjacent pixel gray difference threshold 40 exports as threshold data；Binary conversion treatment equipment, selects equipment and Nogata with threshold value respectively
Figure distribution detection device connects, for when receiving global threshold and selecting signal, for each picture in gray level image
Vegetarian refreshments, when gray value more than or equal to threshold data time, by for pixel be set to white level pixel, when gray value is less than
During threshold data, by for pixel be set to black level pixel, and the binary image that output gray level image is corresponding；
Binary conversion treatment equipment is additionally operable to when receiving non-global threshold and selecting signal, for each pixel in gray level image
Point, calculate vertical direction upwards apart from the gray value of pixel of its 3 pixels as upper grey scale pixel value, calculate Vertical Square
To downwards apart from the gray value of pixel of its 3 pixels as lower grey scale pixel value, calculated level direction to the left apart from its 3
The gray value of the pixel of individual pixel is as left grey scale pixel value, and calculated level direction is to the right apart from the picture of its 3 pixels
The gray value of vegetarian refreshments is as right grey scale pixel value, when the absolute value of upper grey scale pixel value and the difference of lower grey scale pixel value is less than or equal to
The absolute value of the difference of threshold data and left grey scale pixel value and right grey scale pixel value less than or equal to threshold data time, by for picture
Vegetarian refreshments is set to white level pixel, when the absolute value of upper grey scale pixel value and the difference of lower grey scale pixel value more than threshold data or
The absolute value of the difference of left grey scale pixel value and right grey scale pixel value more than threshold data time, by for pixel be set to black appliances
Flat pixel, and the binary image that output gray level image is corresponding；Picture smooth treatment equipment, with binary conversion treatment equipment even
Connect, be used for receiving binary image, for each pixel in binary image, when adjacent all pixels exist
During more than half trip point, then by for the gray value of pixel retain, otherwise, by for the gray value of pixel set
It is set to white level pixel, and exports the smoothed image that binary image is corresponding；Medium filtering equipment, processes with image balance and sets
Standby connection, is used for receiving smoothed image, is analyzed determining that each noise divides to the gray value of the pixel of smoothed image
The distribution radius in cloth region, the maximum in distribution radius based on each noise profile region determines the filter carrying out medium filtering
Ripple block of pixels size, uses the filtered pixel block size determined that smoothed image carries out medium filtering and processes to obtain filtering figure
Picture；Sub-screen analytical equipment, is connected to obtain filtering image with medium filtering equipment, and filtering image is various with prestore
The screen pattern of mobile terminal carries out mating each screen subimage to detect and be partitioned in filtering image, for each
Screen subimage, for its position in filtering image determine for screen subimage corresponding seat numbering；Wherein, pin
To seat corresponding to screen subimage numbered hold for the spectators place of mobile terminal corresponding to screen subimage
Projection room seat is numbered；Civil power access interface, is connected with the line of projection room position, for receiving line input
Alternating Current Power Supply signal；Current transformer and sample circuit, be connected with the A phase line in line, B phase line and C phase line,
For the current signal in A phase line, B phase line and C phase line is sampled respectively；Voltage sample circuit, with city's electric wire
A phase line, B phase line and C phase line in road connect, for the voltage signal in A phase line, B phase line and C phase line
It is sampled respectively；Current signal conditioning circuit, is connected with current transformer and sample circuit, for sampling current is carried out letter
Number conditioning；Voltage signal conditioning circuit, is connected with voltage sample circuit, for sampling voltage is carried out signal condition；AD73360
Chip, is connected with current signal conditioning circuit and voltage signal conditioning circuit respectively, after the sampling current after conditioning and conditioning
Sampling voltage perform 16 A/D conversion respectively, it is thus achieved that digital current signal and digital voltage signal, be additionally based upon digital current letter
Number and digital voltage signal determine the virtual value of digital current signal and the virtual value of digital voltage signal；Alternating Current Power Supply conversion sets
Standby, it is connected with the A phase line in line, B phase line and C phase line, is used for performing alternating current to galvanic conversion, for
Each electrical equipment provides supply of electric power；Wherein, Freescale IMX6 processing equipment is also connected with AD73360 chip, for base
Realize electrical management control in the virtual value of digital current signal and the virtual value of digital voltage signal, wherein, work as digital current
When the product of the virtual value of signal and the virtual value of digital voltage signal is less than predetermined power threshold value, enters energy-saving mode, work as number
When the product of the virtual value of word current signal and the virtual value of digital voltage signal is more than or equal to predetermined power threshold value, exit economize on electricity
Pattern；Wherein, the quantity of the pixel value pixel that the match is successful and the relation of content matching percentage ratio are non-linear dependence.
More specifically, in described current sample processing platform, also include: Alternating Current Power Supply conversion equipment is arranged on projection room
Background control indoor.
More specifically, in described current sample processing platform, also include: current signal conditioning circuit is arranged on projection room
Background control indoor.
More specifically, in described current sample processing platform, also include: voltage signal conditioning circuit is arranged on projection room
Background control indoor.
More specifically, in described current sample processing platform, also include: current transformer and sample circuit are arranged on to be put
The Background control reflecting room is indoor.
More specifically, in described current sample processing platform, also include: gray processing processing equipment, medium filtering equipment,
Sub-screen analytical equipment and picture smooth treatment integration of equipments are on one piece of surface-mounted integrated circuit.
Accompanying drawing explanation
Below with reference to accompanying drawing, embodiment of the present invention are described, wherein:
Fig. 1 is the block diagram according to the current sample processing platform shown in embodiment of the present invention.
Reference: 1 current transformer and sample circuit；2 civil power access interfaces；3 current signal conditioning circuits
Detailed description of the invention
Below with reference to accompanying drawings the embodiment of the current sample processing platform of the present invention is described in detail.
Due to the development of camcorder technology, the microcam that high-resolution, volume are little is more and more universal, and spectators only need
Carry the various mobile terminal with photographic head and can complete high-resolution image recording or image taking, so, carry out
Piracy is taken on the sly very easy, causes tremendous economic to lose to relevant industry.
Piracy is taken on the sly and is typically occurred in cinema, theater, arenas, projection room or theatre, and operator is in order to avoid stealing
Bat behavior prevailing, it will usually arrange special staff to be arranged in around auditorium, arranges one every fixed interval,
With the manner behavior of spectators near naked-eye observation, once it is found to have spectators' hand-held mobile terminal and carries out the recording of image or photo
Shooting, goes forward immediately stop or use hand-held infrared emission pen to alert, thus interrupts the behavior of taking on the sly of spectators.
But, there is the drawback of inherence in this artificial anti-mode taken on the sly: first, if auditorium area is relatively big, then needs
A lot of staff is arranged to carry out field monitor, it means that to need substantial amounts of cost of labor；Secondly, staff's naked eyes are swept
The mode inefficiency retouched, and the mode of direct surveillance is susceptible to let slip taking on the sly of some corner location because of asthenia
Person；Finally, the mode arranging staff near spectators brings discomfort to the spectators of normal viewing performance, have impact on them glad
The mood of reward performance.
As can be seen here, the artificial anti-mode taken on the sly has inborn deficiency, in order to overcome above-mentioned drawback, reduces anti-taking on the sly
Operation cost, improves the anti-work efficiency taken on the sly, and operator always searches for the mode that electronics prevents taking on the sly and carries out on-site supervision, electricity
The anti-two kinds of developing direction of having taken on the sly of son, a kind of is to make an issue of on the mobile terminal that spectators are hand-held, when mobile terminal shoots certainly
Dynamic detection is taken on the sly behavior, but this mode is probably due to the selection of mobile terminal is avoided by the person of taking on the sly, another kind be
The scene of taking on the sly disposes electronic jamming device, and this mode can avoid evading of the person of taking on the sly.
The existing anti-electronic jamming device taken on the sly is that a kind of infrared facility is placed in the back side of curtain or stage,
Infrared facility sends the sightless infrared ray of human eye, if the person of taking on the sly is moving terminal or video camera shooting, the most infrared
Line by the video camera imaging of the interference person of taking on the sly, causes image or lower picture quality that the person of taking on the sly obtains, it is impossible to commercially sell
Sell and propagate on network, thus effectively safeguarding copyright interest.
But, this mode needs to launch infrared ray always, and ultrared transmitting is large-scale, needs from each
Infrared ray, relatively costly and poor feasibility are all launched in position.Therefore on-the-spot electronics prevents that the equipment of taking on the sly also needs to find other
Break through direction.
In order to overcome above-mentioned deficiency, the present invention has built a kind of current sample processing platform, it is possible to by audience
The behavioral value of spectators and taking on the sly by determining whether to exist in audience seat to the parameter extraction of site environment in seat
Person, and can in time the position at the person of taking on the sly place be positioned, in order to taking to orient warning measure accordingly, prompting is taken on the sly
Person abandons the behavior of taking on the sly.
Fig. 1 is the block diagram according to the current sample processing platform shown in embodiment of the present invention, described platform bag
Include current transformer and sample circuit, civil power access interface and current signal conditioning circuit, civil power access interface and projection room position
The line put connects, and for receiving the Alternating Current Power Supply signal of line input, current transformer and sample circuit, with city
A phase line, B phase line and C phase line in electric line connect, for the electric current in A phase line, B phase line and C phase line
Signal is sampled respectively, current signal conditioning circuit, is connected with current transformer and sample circuit, for entering sampling current
Row signal condition.
Then, continue the concrete structure of the current sample processing platform of the present invention is further detailed.
Described platform includes: projection room content acquisition equipment, is arranged on projection room curtain opposite, shows for Real-time Collection
Scene image on the curtain of room is to export as real-time scene image.
Described platform includes: Content analysis apparatus, and the Background control being arranged on projection room is indoor, respectively with sub-screen analysis
Equipment and projection room content acquisition equipment connect, and are used for receiving real-time scene image, are additionally operable to receive each screen subimage
Number with the seat of its correspondence, each screen subimage and real-time scene image are carried out content matching to determine content matching
Percentage ratio, when content matching percentage ratio is more than or equal to preset percentage threshold value, makees seat numbering corresponding for screen subimage
For targeted seat numbering output；Wherein, each screen subimage and real-time scene image are carried out content by Content analysis apparatus
Coupling is to determine that content matching percentage ratio specifically includes: by each pixel in real-time scene image and each screen subimage
Each pixel carry out pixel value coupling, the quantity of the pixel value pixel that the match is successful is the most, the content that screen subimage is corresponding
Match-percentage is the highest.
Described platform includes: Freescale IMX6 processing equipment, and the Background control being arranged on projection room is indoor, divides with content
Desorption device connects, for sending, based on targeted seat numbering, the drive control signal including that targeted seat is numbered.
Described platform includes: orientation equipment, and the Background control being arranged on projection room is indoor, sets with Freescale IMX6 process
Standby connect, for resolving to determine that targeted seat number to drive control signal, based on targeted seat number to target
Prompting mechanism and two-way speaker that seat numbering is corresponding send alarm signal of taking pictures.
Described platform includes: prompting mechanism, and each spectators seat arranges one, and position is in spectators seat correspondence chair
The rear of the back of the body, including spring, expansion controller and wooden protrusion member, wooden protrusion member is arranged on the front of spring, flexible
Controller is connected with orientation equipment, for controlling stretching, extension and the contraction of spring；Wherein, expansion controller is receiving warning of taking pictures
Stretch spring during signal to realize wooden protrusion member, spectators' back to be tapped.
Described platform includes: two-way speaker, and each spectators seat arranges one, and position is in spectators seat pair
In answering handrail, it is connected with orientation equipment, for playing the voice literary composition corresponding with no photographing when receiving and taking pictures alarm signal
Part.
Described platform includes: CMOS sensing equipment, is arranged on middle position, projection room roof, between based on Preset Time
Every the auditorium on projection room curtain opposite being carried out sequential image acquisition with continuous print auditorium image on output time, the most in advance
If time interval is between 0.5 second to 0.1 second.
Described platform includes: pre-detection equipment, is connected with CMOS sensing equipment, is used for receiving current auditorium image and front
One frame auditorium image, calculates the average brightness value of current auditorium image as the first brightness value, calculating former frame auditorium
The average brightness value of image is as the second brightness value, when the first brightness value and the second brightness value are both greater than equal to predetermined luminance threshold value
Time, send early warning signal of taking on the sly, current auditorium image is sent to gray processing processing equipment, otherwise, sends and normally watch letter
Number, stop current auditorium image is sent to gray processing processing equipment.
Described platform includes: gray processing processing equipment, is connected with pre-detection equipment, including channel parameters extraction unit, adds
Weight storage unit and gray value computing unit, channel parameters extraction unit is used for receiving current auditorium image, extracts and works as
The R passage pixel value of each pixel, G passage pixel value and channel B pixel value in the image of front auditorium, weighted value storage is single
Unit is used for having prestored R channel weighting value, G channel weighting value and channel B weighted value, gray value computing unit respectively with passage
Parameter extraction unit and weighted value memory element connect, for each pixel in the image of current auditorium, by R passage pixel
Value adds with channel B with product and the channel B pixel value of G channel weighting value with product, the G passage pixel value of R channel weighting value
The product addition of weights with obtain for the gray value of pixel, and based on the ash of each pixel in the image of current auditorium
Angle value obtains the gray level image that current auditorium image is corresponding；Wherein, R channel weighting value value is 0.298839, and G passage adds
Weights value is 0.586811, and channel B weighted value value is 0.114350.
Described platform includes: histogram distribution detection equipment, is connected with gray processing processing equipment, is used for receiving gray processing figure
Picture, and gray level image is carried out the grey level histogram process histogram image with acquisition correspondence, present double at histogram image
During peak distribution, send global threshold and select signal, otherwise, send non-global threshold and select signal.
Described platform includes: threshold value selects equipment, is connected with histogram distribution detection equipment, for receiving overall situation threshold
When value selects signal, global threshold 128 is exported as threshold data, when receiving non-global threshold and selecting signal, by phase
Adjacent pixel gray difference threshold 40 exports as threshold data.
Described platform includes: binary conversion treatment equipment, selects equipment and histogram distribution detection equipment respectively with threshold value even
Connect, for when receiving global threshold and selecting signal, for each pixel in gray level image, when gray value is more than
During equal to threshold data, by for pixel be set to white level pixel, when gray value is less than threshold data, will be for
Pixel be set to black level pixel, and the binary image that output gray level image is corresponding；Binary conversion treatment equipment is also
For when receiving non-global threshold and selecting signal, for each pixel in gray level image, calculate vertical direction
Upwards apart from the gray value of pixel of its 3 pixels as upper grey scale pixel value, calculate vertical direction downwards apart from its 3
The gray value of the pixel of pixel is as lower grey scale pixel value, and calculated level direction is to the left apart from the pixel of its 3 pixels
The gray value of point is as left grey scale pixel value, and calculated level direction is made apart from the gray value of the pixel of its 3 pixels to the right
For right grey scale pixel value, when the absolute value of upper grey scale pixel value and the difference of lower grey scale pixel value is less than or equal to threshold data and left picture
Element gray value and right grey scale pixel value difference absolute value less than or equal to threshold data time, by for pixel be set to white appliances
Flat pixel, when the absolute value of upper grey scale pixel value and the difference of lower grey scale pixel value more than threshold data or left grey scale pixel value and
When the absolute value of the difference of right grey scale pixel value is more than threshold data, by for pixel be set to black level pixel, and defeated
Go out the binary image that gray level image is corresponding.
Described platform includes: picture smooth treatment equipment, is connected with binary conversion treatment equipment, is used for receiving binary picture
Picture, for each pixel in binary image, when adjacent all pixels exist the trip point of more than half,
Then by for the gray value of pixel retain, otherwise, by for the gray value of pixel be set to white level pixel, and
The smoothed image that output binary image is corresponding.
Described platform includes: medium filtering equipment, is connected with image balance processing equipment, is used for receiving smoothed image, right
The gray value of the pixel of smoothed image is analyzed determining the distribution radius in each noise profile region, makes an uproar based on each
Maximum in the distribution radius of sound distributed areas determines the filtered pixel block size carrying out medium filtering, uses the filtering determined
Block of pixels size carries out medium filtering and processes to obtain filtering image smoothed image.
Described platform includes: sub-screen analytical equipment, is connected to obtain filtering image with medium filtering equipment, filtering is schemed
As carrying out mating each screen to detect and be partitioned in filtering image with the screen pattern of the various mobile terminals prestored
Curtain subimage, for each screen subimage, for its position in filtering image determine for screen subimage pair
The seat numbering answered；Wherein, for seat corresponding to screen subimage numbered hold for screen subimage corresponding
The projection room seat numbering at the spectators place of mobile terminal.
Described platform includes: civil power access interface, is connected with the line of projection room position, is used for receiving line
The Alternating Current Power Supply signal of input；A phase line, B phase line and C phase line in current transformer and sample circuit, with line
Road connects, for being sampled the current signal in A phase line, B phase line and C phase line respectively；Voltage sample circuit, with
A phase line, B phase line and C phase line in line connect, for the electricity in A phase line, B phase line and C phase line
Pressure signal is sampled respectively；Current signal conditioning circuit, is connected with current transformer and sample circuit, for sampling current
Carry out signal condition；Voltage signal conditioning circuit, is connected with voltage sample circuit, for sampling voltage is carried out signal condition.
Described platform includes: AD73360 chip, connects with current signal conditioning circuit and voltage signal conditioning circuit respectively
Connect, the sampling voltage after the sampling current after conditioning and conditioning performed 16 A/D conversion respectively, it is thus achieved that digital current signal and
Digital voltage signal, is additionally based upon digital current signal and digital voltage signal determines that the virtual value of digital current signal and numeral are electric
The virtual value of pressure signal.
Described platform includes: Alternating Current Power Supply conversion equipment, with the A phase line in line, B phase line and C phase line
Connect, be used for performing alternating current to galvanic conversion, for the offer supply of electric power of each electrical equipment.
Wherein, Freescale IMX6 processing equipment is also connected with AD73360 chip, has for based on digital current signal
The virtual value of valid value and digital voltage signal realizes electrical management control, wherein, when virtual value and the numeral of digital current signal
When the product of the virtual value of voltage signal is less than predetermined power threshold value, enter energy-saving mode, when the virtual value of digital current signal
When being more than or equal to predetermined power threshold value with the product of the virtual value of digital voltage signal, exit energy-saving mode.
Wherein, the quantity of the pixel value pixel that the match is successful and the relation of content matching percentage ratio are non-linear dependence.
Alternatively, in described platform: the Background control that Alternating Current Power Supply conversion equipment is arranged on projection room is indoor；Electric current is believed
The Background control that number modulate circuit is arranged on projection room is indoor；Voltage signal conditioning circuit is arranged on the Background control room of projection room
In；The Background control that current transformer and sample circuit are arranged on projection room is indoor；Gray processing processing equipment, medium filtering set
Standby, sub-screen analytical equipment and picture smooth treatment integration of equipments are on one piece of surface-mounted integrated circuit.
It addition, CMOS (Complementary Metal-Oxide-Semiconductor), Chinese formal name used at school is complementary metal
Oxide semiconductor, he is originally a kind of important chip in computer system, saves the data that System guides is most basic.CMOS
Manufacturing technology and general computer chip do not have difference, partly led mainly by what silicon and germanium both elements made
Body so that it is co-exist band N (band-electricity) and the quasiconductor of P (band+electricity) level on CMOS, electricity produced by the two complementary effect
Stream can be processed chip record and be interpreted to image.Found that CMOS can also be as the figure in digital photography through processing later
As sensor.
For independent of the portable use of electrical network, the CMOS technology famous with low power consumption characteristic have one bright
Aobvious advantage: cmos image sensor designs for 5V and 3.3V supply voltage.CCD chip then needs about 12V
Supply voltage, therefore have to use an electric pressure converter, thus cause power consumption to increase.In terms of total power consumption, controlling
Be integrated in cmos sensor with systemic-function and will bring another benefit: he eliminate with other semiconductor elements all outside
Portion's connecting line.The driver of its high power consumption is abandoned the most, this is because communicate consumed energy at chip internal
More much lower than by the outside implementation of PCB or substrate.
Use the current sample processing platform of the present invention, cannot be for the effective electricity of offer of taking on the sly of performance for prior art
The technical problem of son detection, by using targetedly, high-precision a series of images processing equipment and image analysis equipment
The audience status of auditorium is analyzed, is analyzed also by the environment on-the-spot to performance, on the basis of above-mentioned analysis,
The behavior of pirates shoot person in auditorium is accurately detected and location recognition, finally takes aposematic mechanism that the person of taking on the sly is carried out electronics
Remind, thus while avoiding interference other spectators viewing, effectively reduce the generation of behavior of taking on the sly.
Although it is understood that the present invention discloses as above with preferred embodiment, but above-described embodiment being not used to
Limit the present invention.For any those of ordinary skill in the art, without departing under technical solution of the present invention ambit,
Technical solution of the present invention is made many possible variations and modification by the technology contents that all may utilize the disclosure above, or is revised as
Equivalent embodiments with change.Therefore, every content without departing from technical solution of the present invention, according to the technical spirit pair of the present invention
Any simple modification made for any of the above embodiments, equivalent variations and modification, all still fall within the scope of technical solution of the present invention protection
In.
Claims (7)
1. a current sample processing platform, described platform includes current transformer and sample circuit, civil power access interface and electricity
Stream signal conditioning circuit, civil power access interface is connected with the line of projection room position, for receiving line input
Alternating Current Power Supply signal, current transformer and sample circuit, be connected with the A phase line in line, B phase line and C phase line,
For being sampled the current signal in A phase line, B phase line and C phase line respectively, current signal conditioning circuit, with electricity
Current transformer and sample circuit connect, for sampling current is carried out signal condition.
2. current sample processing platform as claimed in claim 1, it is characterised in that described platform includes:
Projection room content acquisition equipment, is arranged on projection room curtain opposite, the scene graph on Real-time Collection projection room curtain
As to export as real-time scene image；
Content analysis apparatus, the Background control being arranged on projection room is indoor, respectively with sub-screen analytical equipment and projection room content
Collecting device connects, and is used for receiving real-time scene image, and the seat being additionally operable to receive each screen subimage and its correspondence is compiled
Number, each screen subimage and real-time scene image are carried out content matching to determine content matching percentage ratio, when content
When component percentage is more than or equal to preset percentage threshold value, seat numbering corresponding for screen subimage is defeated as targeted seat numbering
Go out；Wherein, each screen subimage and real-time scene image are carried out content matching to determine content by Content analysis apparatus
Component percentage specifically includes: each pixel of each pixel in real-time scene image Yu each screen subimage is carried out picture
Element value coupling, the quantity of the pixel value pixel that the match is successful is the most, and the content matching percentage ratio that screen subimage is corresponding is the highest；
Freescale IMX6 processing equipment, the Background control being arranged on projection room is indoor, is connected with Content analysis apparatus, for base
The drive control signal including that targeted seat is numbered is sent in targeted seat numbering；
Orientation equipment, the Background control being arranged on projection room is indoor, is connected with Freescale IMX6 processing equipment, for driving
Control signal carries out resolving to determine that targeted seat is numbered, based on targeted seat numbering to the prompting corresponding with targeted seat numbering
Agency channel loudspeaker sends alarm signal of taking pictures；
Prompting mechanism, each spectators seat arranges one, and position is in the rear of the spectators seat correspondence chair back, including bullet
Spring, expansion controller and wooden protrusion member, wooden protrusion member is arranged on the front of spring, expansion controller and orientation equipment
Connect, for controlling stretching, extension and the contraction of spring；Wherein, expansion controller receive take pictures alarm signal time stretch spring with
Realize wooden protrusion member spectators' back is tapped；
Two-way speaker, each spectators seat arranges one, and position is in spectators seat correspondence handrail, sets with orientation
Standby connection, for playing the voice document corresponding with no photographing when receiving and taking pictures alarm signal；
CMOS sensing equipment, is arranged on middle position, projection room roof, is used for based on prefixed time interval projection room curtain pair
The auditorium in face carries out sequential image acquisition with continuous print auditorium image on output time, and wherein prefixed time interval is selected from
Between 0.5 second to 0.1 second；
Pre-detection equipment, is connected with CMOS sensing equipment, is used for receiving current auditorium image and former frame auditorium image, meter
The average brightness value calculating current auditorium image is made as the first brightness value, the average brightness value calculating former frame auditorium image
It is the second brightness value, when the first brightness value and the second brightness value are both greater than equal to predetermined luminance threshold value, sends early warning letter of taking on the sly
Number, current auditorium image is sent to gray processing processing equipment, otherwise, sends and normally watch signal, stop current spectators
Seat image is sent to gray processing processing equipment；
Gray processing processing equipment, is connected with pre-detection equipment, including channel parameters extraction unit, weighted value memory element and gray scale
Value computing unit, channel parameters extraction unit is used for receiving current auditorium image, extracts in the image of current auditorium each
The R passage pixel value of individual pixel, G passage pixel value and channel B pixel value, weighted value memory element is used for having prestored R
Channel weighting value, G channel weighting value and channel B weighted value, gray value computing unit respectively with channel parameters extraction unit and adding
Weight storage unit connects, for each pixel in the image of current auditorium, by R passage pixel value and R channel weighting value
Product, the product of G passage pixel value and G channel weighting value and channel B pixel value and channel B weighted value product addition with
Obtain for the gray value of pixel, and obtain current spectators based on the gray value of each pixel in the image of current auditorium
The gray level image that seat image is corresponding；Wherein, R channel weighting value value is 0.298839, and G channel weighting value value is
0.586811, channel B weighted value value is 0.114350；
Histogram distribution detection equipment, is connected with gray processing processing equipment, is used for receiving gray level image, and to gray level image
Carry out grey level histogram to process to obtain corresponding histogram image, when histogram image presents bimodal distribution, send the overall situation
Threshold value selects signal, otherwise, sends non-global threshold and selects signal；
Threshold value selects equipment, is connected with histogram distribution detection equipment, for when receiving global threshold and selecting signal, by complete
Office's threshold value 128 exports as threshold data, when receiving non-global threshold and selecting signal, by neighbor pixel gray difference threshold
40 export as threshold data；
Binary conversion treatment equipment, selects equipment and histogram distribution detection equipment to be connected, for receiving entirely respectively with threshold value
When office's threshold value selects signal, for each pixel in gray level image, when gray value is more than or equal to threshold data, will
For pixel be set to white level pixel, when gray value less than threshold data time, by for pixel be set to black
Level pixel point, and the binary image that output gray level image is corresponding；Binary conversion treatment equipment be additionally operable to receive non-entirely
When office's threshold value selects signal, for each pixel in gray level image, calculate vertical direction upwards apart from its 3 pixels
The gray value of the pixel of point as upper grey scale pixel value, calculates vertical direction downwards apart from the pixel of its 3 pixels
Gray value as lower grey scale pixel value, calculated level direction to the left apart from the gray value of pixel of its 3 pixels as a left side
Grey scale pixel value, calculated level direction to the right apart from the gray value of pixel of its 3 pixels as right grey scale pixel value, when
The absolute value of the difference of upper grey scale pixel value and lower grey scale pixel value is less than or equal to threshold data and left grey scale pixel value and right pixel
The absolute value of the difference of gray value less than or equal to threshold data time, by for pixel be set to white level pixel, when upper picture
The absolute value of the difference of element gray value and lower grey scale pixel value more than threshold data or left grey scale pixel value and right grey scale pixel value it
Difference absolute value more than threshold data time, by for pixel be set to black level pixel, and output gray level image pair
The binary image answered；
Picture smooth treatment equipment, is connected with binary conversion treatment equipment, is used for receiving binary image, in binary image
Each pixel, when adjacent all pixels exist the trip point of more than half, then by for pixel
Gray value retains, otherwise, by for the gray value of pixel be set to white level pixel, and it is corresponding to export binary image
Smoothed image；
Medium filtering equipment, is connected with image balance processing equipment, is used for receiving smoothed image, to the pixel of smoothed image
Gray value is analyzed determining the distribution radius in each noise profile region, distribution based on each noise profile region half
Maximum in footpath determines the filtered pixel block size carrying out medium filtering, uses the filtered pixel block size determined to smooth figure
Process as carrying out medium filtering to obtain filtering image；
Sub-screen analytical equipment, is connected to obtain filtering image with medium filtering equipment, and filtering image is each with prestore
The screen pattern planting mobile terminal carries out mating each screen subimage to detect and be partitioned in filtering image, for each
Individual screen subimage, for its position in filtering image determine for screen subimage corresponding seat numbering；Wherein,
For seat corresponding to screen subimage numbered hold for the spectators place of mobile terminal corresponding to screen subimage
Projection room seat numbering；
Civil power access interface, is connected with the line of projection room position, for receiving the Alternating Current Power Supply letter of line input
Number；
Current transformer and sample circuit, be connected with the A phase line in line, B phase line and C phase line, for A phase
Current signal in circuit, B phase line and C phase line is sampled respectively；
Voltage sample circuit, is connected with the A phase line in line, B phase line and C phase line, for A phase line, B phase
Voltage signal in circuit and C phase line is sampled respectively；
Current signal conditioning circuit, is connected with current transformer and sample circuit, for sampling current is carried out signal condition；
Voltage signal conditioning circuit, is connected with voltage sample circuit, for sampling voltage is carried out signal condition；
AD73360 chip, is connected with current signal conditioning circuit and voltage signal conditioning circuit respectively, to the sampling electricity after conditioning
Sampling voltage after stream and conditioning performs 16 A/D conversions respectively, it is thus achieved that digital current signal and digital voltage signal, is additionally based upon
Digital current signal and digital voltage signal determine the virtual value of digital current signal and the virtual value of digital voltage signal；
Alternating Current Power Supply conversion equipment, is connected with the A phase line in line, B phase line and C phase line, is used for performing exchange
Electricity, to galvanic conversion, provides supply of electric power for each electrical equipment；
Wherein, Freescale IMX6 processing equipment is also connected with AD73360 chip, for virtual value based on digital current signal
Electrical management control is realized, wherein, when virtual value and the digital voltage of digital current signal with the virtual value of digital voltage signal
When the product of the virtual value of signal is less than predetermined power threshold value, enter energy-saving mode, when the virtual value sum of digital current signal
When the product of the virtual value of word voltage signal is more than or equal to predetermined power threshold value, exit energy-saving mode；
Wherein, the quantity of the pixel value pixel that the match is successful and the relation of content matching percentage ratio are non-linear dependence.
3. current sample processing platform as claimed in claim 2, it is characterised in that:
The Background control that Alternating Current Power Supply conversion equipment is arranged on projection room is indoor.
4. current sample processing platform as claimed in claim 2, it is characterised in that:
The Background control that current signal conditioning circuit is arranged on projection room is indoor.
5. current sample processing platform as claimed in claim 2, it is characterised in that:
The Background control that voltage signal conditioning circuit is arranged on projection room is indoor.
6. current sample processing platform as claimed in claim 2, it is characterised in that:
The Background control that current transformer and sample circuit are arranged on projection room is indoor.
7. current sample processing platform as claimed in claim 2, it is characterised in that:
Gray processing processing equipment, medium filtering equipment, sub-screen analytical equipment and picture smooth treatment integration of equipments are at one piece of collection
Become on circuit board.
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| CN201610481277.XA CN106199133A (en) | 2016-06-27 | 2016-06-27 | Current sample processing platform |
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| CN201610481277.XA CN106199133A (en) | 2016-06-27 | 2016-06-27 | Current sample processing platform |
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Application publication date: 20161207 |