CN101938672A - Audience rating statistical system and statistical method thereof - Google Patents
Audience rating statistical system and statistical method thereof Download PDFInfo
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Abstract
The invention discloses an audience rating statistical system and a statistical method thereof. The system comprises a video output terminal and a process server connected with the video output terminal through a network, wherein, the video output terminal comprises a microprocessor, a television signal processing module, an image signal output module, an acoustical signal output module, a clock module and a data transmitting and receiving module, wherein, the television signal processing module, the image signal output module, the acoustical signal output module, the clock module and the data transmitting and receiving module are respectively connected with the microprocessor; the data transmitting and receiving module is connected with the process server through a network interface; the television signal processing module is internally provided with a data acquisition module; and the microprocessor is internally provided with a program changing judging module, a graph block acquisition control module and a timing module. The invention can accurately acquire the program changing information of users and calculate the audience rating, simultaneously can lower the operation cost, not only can be used in the condition that a set top box exists, but also can be used in the condition that the set top box does not exist, and has strong practicality and wide application range.
Description
Technical field
The present invention relates to a kind of audience rating statistical system and statistical method thereof, especially relate to a kind of by judgement that television channel is switched and the audience rating statistical system and the statistical method thereof of carrying out audience rating statistical in conjunction with the station symbol identification mode.
Background technology
The traditional TV station and the audience rating statistical of TV programme adopt diary method and personnel's measuring instrument method usually.Diary method is meant by filling in the method that the diary card is collected audience information by all 4 years old and above kinsfolk in the sample family.Each kinsfolk has diary card separately in the sample family, requires them situation about televiewing every day, comprises that the channel watched and time period etc. are recorded on the diary card of oneself at any time.The listed time interval is 15 minutes on the diary card.Each Zhang Riji card can write down the viewership in a week.Because the error of user memory cause the error of statistics, can not in real time carry out easily by the calculating of statistics simultaneously for the method.
Personnel's measuring instrument method is meant that utilization " personnel's measuring instrument " collects the method for television program receiving information, is audience investigation means commonly used in the world at present.Each member of sample households has the button of oneself on hand controller, but also leaves guest's button.When the member of family begins to see TV, must click the button of representative oneself on the hand controller earlier, when not seeing TV, click this button again, measuring instrument can be all information that teleview the time period to store with the per minute, is sent to the central computer of general headquarters then by telephone wire.In this scheme, data can be by Network Transmission to data center, and audience ratings is calculated comparatively rapid, but personnel's measuring instrument cost is higher.
At present, a kind of new product form, internet television have appearred in television set.This kind television set has increased mixed-media network modules mixed-media in television set inside on the basis of general television set function, make that TV can be by the broadband access the Internet, thereby realizes watching and use on the television set content and service from the Internet.Because this type of television set has the internet information return path, therefore, have an opportunity to watch the viewing-data of TV to collect automatically the user, and automatic returned data center, the automatic statistics of realization audience ratings.
As application number is that 200810305143.8 application for a patent for invention discloses a kind of television audience rating data collection method, this method is: in the time of start or replacing channel, the television set microprocessor obtains the frequency of current in progress television channel from its internal storage, the frequency and the current time of television channel are sent to the audience rating data receiving system as audience rating data, and the audience rating data receiving system reports to audience rating data processing center by network with audience rating data.There is following defective in this scheme:
1) when set-top box during as the preposition equipment of television set, TV signal through ovennodulation is no longer directly imported television set, but at first import set-top box into, after carrying out demodulation, descrambling, decoding and conversion of signals by set-top box, with AV (the compound port of Voice ﹠ Video, be the abbreviation of Audio and Video), S terminal or HDMI(HDMI (High Definition Multimedia Interface), High Definition Multimedia Interface) English: the signal input television set of form such as.After using set-top box, user's switching channels is by the remote controller of set-top box but not TV remote controller, the video of television for play transmits from set-top box by interfaces such as AV, HDMI, microprocessor on the television set can't come the platform that changes on the machines top box to operate according to the variation of set-top box tuned frequency, television set tuned frequency and the TV programme of this moment do not have corresponding relation simultaneously, therefore, be difficult to add up audience ratings.
2), under different radio and TV operator's networks, be different to the employed modulating frequency of the channel of same TV station in different areas; And, areal, under the network of same operator, regular meeting changes during the employed frequency of same television station channel.From the angle that reality is used, be difficult in time collect and follow the tracks of the nationwide, several thousand big and small radio and TV operators, up to ten thousand frequency point information and the variations that channel is provided with.Therefore, by frequency and the time point of collecting, will be difficult to be converted into the viewership information that channel and time point are formed.
Summary of the invention
Purpose of the present invention overcomes deficiency of the prior art exactly, and a kind of accuracy rate height is provided, the audience rating statistical system and the statistical method thereof of practical, applied range.
For solving the problems of the prior art, audience rating statistical of the present invention system has adopted following scheme: comprise video output terminal, the processing server that is connected by network with described video output terminal, described video output terminal comprises microprocessor at least, the TV signal processing module that is connected with described microprocessor respectively, the picture signal output module, the voice signal output module, clock module and data transmit-receive module, described data transmit-receive module is connected with described processing server by network interface, wherein, be provided with the data acquisition module of gathering its output signal in the described TV signal processing module, be provided with in the described microprocessor according to the data of described data collecting module collected judge whether television channel switch change the platform judging module and under described triggering of changing the platform judging module, carry out the collection of video segment the segment acquisition control module reach the time block that timing acquisition time is provided for described data acquisition module.
Further, described data acquisition module is for gathering the audio collection module of voice data.
Further, described data acquisition module is for gathering the video acquisition module of vedio data.
Further, described processing server comprises the database module that is used for store digital information, be used to receive image data information that described video output terminal uploads and Data Receiving and the feedback module that the processing result information of described processing server is fed back to described video output terminal, data retrieval that the image data information that described Data Receiving and feedback module are received is searched for and inquired about in described database module and enquiry module and the counting statistics module of audience ratings being added up and being calculated according to the retrieval and the Query Result of described data retrieval and enquiry module.
Further, described database module comprise storage bed mark on a map the case data message the station symbol database, store the playbill data storehouse of program schedule information and the ratings database that stores the audience rating statistical object information.
The statistical method of a kind of audience rating statistical system comprises the steps:
1) station symbol pattern data information and the television program schedule information with TV station is stored in the database module of processing server in advance, and the time block of video output terminal is provided with the data acquisition time of data acquisition module in advance;
2) when video output terminal when playing TV programme, data acquisition module is gathered television output signal according to the data acquisition time in the step 1) and the data that collect is sent to and changes the platform judging module;
3) change the platform judging module according to step 2) in the data of gathering the switching of television channel is judged, judging television channel switches, then trigger the segment acquisition control module and carry out step 4), step 5) and step 6) in proper order, judge television channel and do not switch, then repeating step 2) and 3);
4) the segment acquisition control module is carried out the tile data collection to the picture signal of picture signal output module output, and gathers the time point data of clock module simultaneously;
5) data transmit-receive module of video output terminal is sent to processing server with the tile data and the time point data of gathering in the step 4) by network interface;
6) Data Receiving of processing server and feedback module receiving step 5) in tile data and time point data, search in data retrieval and enquiry module store the tile data of being gathered in the step 4) in step 1) in the database module the station symbol pattern data information, in tile data, search out TV station's station symbol pattern, the television station channel of then determining the user and being watched;
7) data retrieval of processing server and enquiry module be according to determined television station channel in the step 6), binding time point data query steps 1) in the television program schedule information of database, determine the content of TV program that the user watches;
8) the counting statistics module counts the audience ratings of TV station and TV programme thereof according to determined content of TV program in determined television station channel and the step 7) in the step 6).
In the said method, change the platform judging module described in the step 3) according to step 2) in the data of gathering the switching of television channel is judged, comprise step by step following:
3)-a. changes the platform judging module and receives the voice data of audio collection module collection and choose audio frequency comparison sampled point;
3)-b. changes the platform judging module and calculates step by step 3)-volume of selected audio frequency comparison sampled point among a, obtain the volume range value of each sampled point;
3)-c. step by step 3)-the volume range value that obtains among the b makes the judgement of audio mute less than the audio frequency thresholding;
3)-d. changes the platform judging module and makes quiet judgement continuously, judges that then the television channel handover event takes place.
In the said method, change the platform judging module described in the step 3) according to step 2) in the data of gathering the switching of television channel is judged, comprise step by step following:
3)-A. changes the vedio data of platform judging module receiver, video acquisition module collection and chooses image comparison pixels point;
3)-B. changes the platform judging module and calculates step by step 3)-pixel value of selected pixel among the A;
3)-C. step by step 3)-pixel value that obtains among the B is lower than video threshold, makes the judgement that video image is a blank screen, and carry out step by step 3)-E, pixel value is not less than video threshold, order carries out step by step 3)-D and step by step 3)-E;
3)-D. change the platform judging module with the pixel value of pixel selected in this image respectively with the last sub-picture of video acquisition module collection on the pixel value of each pixel of same position subtract each other and obtain pixel value difference, pixel value difference changes the judgement that the platform judging module is made image freeze less than the video thresholding;
3)-E. changes the judgement that the platform judging module is made blank screen or image freeze continuously, judges that then the television channel handover event takes place.
In the said method, described in the step 1) station symbol pattern data information of TV station is stored in advance the station symbol database of database module, television program schedule information is stored in advance the playbill data storehouse of database module.
In the said method, data retrieval described in the step 6) and enquiry module are searched for the station symbol pattern data information that the tile data of being gathered in the step 4) stores in the database module in step 1), if search failure, the object information that Data Receiving and feedback module will be searched for failure feeds back to video output terminal, the segment acquisition control module of video output terminal is adjusted the segment acquisition scheme, and continues the picture signal of picture signal output module output is carried out the tile data collection.
The audience rating statistical system of the present invention and the statistical method thereof that possess said structure and step possess following advantage:
1) accuracy rate height, cost is low: data acquisition module is set and changes the platform judging module, can detect the incident that television channel switches quite accurately, no longer need to carry out at set intervals the tile data collection, but when detecting the channel handover event, carry out the tile data collection again, send to processing server then and carry out the station symbol search, determine TV station and TV programme thereof that the user watches, thereby both can obtain user's the station information that changes exactly, calculate audience ratings, can reduce the segment frequency acquisition significantly again, reduce transmitted data amount, significantly reduce the number of times that server end carries out the station symbol search, thereby significantly reduce needed number of servers, cut operating costs;
2) practical, applied range: change the platform judging module and make the judgement whether television channel switches by the vedio data of detection video acquisition module collection and/or the voice data of audio collection module collection, this detection method is not subjected to the influence in television signal source, no matter signal is from set-top box or from antenna, coaxial line, can detect the generation of channel handover event by same method, therefore not only can be used to have the situation of set-top box, also be applicable to the situation of some no set-top box, have higher practicality.
In sum, audience rating statistical system of the present invention and statistical method thereof at television set under the situation of set-top box incoming television signal, obtain the problem that the user changes platform incident and information difficulty on the television set, data acquisition module is set and changes platform judging module and segment acquisition control module, can obtain user's the station information that changes exactly, calculate audience ratings, can cut operating costs simultaneously, not only can be used to have the situation of set-top box, also be applicable to the situation of some no set-top box, practical, applied range.
Description of drawings
Fig. 1 is the structural representation block diagram of audience rating statistical of the present invention system.
Fig. 2 is the flow chart of the statistical method of audience rating statistical of the present invention system.
Fig. 3 is for changing the workflow diagram of platform judging module one embodiment among Fig. 1.
Fig. 4 is for changing the workflow diagram of another embodiment of platform judging module among Fig. 1.
Embodiment
The present invention is further detailed explanation below in conjunction with accompanying drawing.
As shown in Figure 1, audience rating statistical of the present invention system comprises video output terminal 1 and processing server 2, described video output terminal 1 comprises microprocessor 11, the TV signal processing module 12 that is connected respectively with microprocessor 11, picture signal output module 13, voice signal output module 14, clock module 15 and data transmit-receive module 16, data transmit-receive module 16 is connected with processing server 2 by network interface 17, wherein, be provided with data acquisition module 121 in the TV signal processing module 12, be provided with in the microprocessor 11 and change platform judging module 111, segment acquisition control module 112 and time block 113, picture signal output module 13 externally connected with display screen 3, voice signal output module 14 external loudspeakers 4.
Described data acquisition module 121 can be video acquisition module of gathering vedio data and/or the audio collection module of gathering voice data.
In the present embodiment, the described platform judging module 111 of changing is to judge according to the data that data acquisition module 121 is gathered whether television channel switches, and specifically is to make the judgement whether television channel switches according to the vedio data of the video acquisition module collection of data acquisition module 121 and/or the voice data of audio collection module collection.
In the present embodiment, described segment acquisition control module 112 is under the triggering of changing platform judging module 111, picture signal to 13 outputs of picture signal output module is carried out the tile data collection, and the time point data of gathering clock module 15 simultaneously, and the data of above-mentioned collection are uploaded to processing server 2 by data transmit-receive module 16 and network interface 17.When segment acquisition control module 112 is carried out the tile data collection, appear at the highest upper left side of video screen upper frequency and the characteristics in top-right zone according to station symbol, at first gather the upper left side and the top-right tile data of video image, after if Data Receiving and feedback module 22 feed back to the information of station symbol search failure, 112 pairs of acquisition scheme of segment acquisition control module are adjusted, proceed the tile data collection according to adjusted scheme, the adjustment of acquisition scheme mainly is to adjust position, the shape and size of segment in the view picture video image that will gather.
In the present embodiment, described time block 113 is to provide timing acquisition time for data acquisition module 121.
In the present embodiment, described database module 21 comprise storage bed mark on a map the case data message station symbol database 211, store the playbill data storehouse 212 of program schedule information and store the ratings database 213 of audience rating statistical object information, described in the present embodiment station symbol pattern data information comprises shape information, colouring information, the dimension information of station symbol pattern and the pattern characteristics dot information that extracts through image processing techniques.
In the present embodiment, described Data Receiving and feedback module 22 are used for collection tile data and the time point data that receiver, video outlet terminal 1 is uploaded, and give video output terminal 1 with the feedback information of data retrieval in the processing result information of processing server 2 and enquiry module 23 search failures.
In the present embodiment, described data retrieval and enquiry module 23 comprise station symbol search module 231 and program inquiry module 232, described station symbol search module 231 is to search in the station symbol pattern data information that is used for the tile data that segment acquisition control module 111 is gathered is stored in station symbol database 211, search out the TV station's station symbol pattern in the tile data, thereby determine the television station channel that the user is watched; Described program inquiry module 232 is to be used for inquiring about in playbill data storehouse 212 according to station symbol search module 231 determined television station channel binding time point data, determines the content of TV program that the user watches.
In the present embodiment, described counting statistics module 24 is to be used for carrying out according to station symbol search module 231 determined television station channels and program inquiry module 232 determined content of TV program and binding time point data the audience rating statistical of TV station and TV programme, and statistics is stored in the ratings database 213, in order to inquiry.
Statistical method below in conjunction with 2 pairs in accompanying drawing audience rating statistical of the present invention system is described in detail, and specifically may further comprise the steps:
1) before carrying out statistical work, the shape information that earlier the station symbol pattern data information of TV station is comprised the station symbol pattern, colouring information, dimension information and the station symbol database 211 that is stored in database module 21 through the pattern characteristics dot information that image processing techniques extracts, television program schedule information is stored in the playbill data storehouse 212 of database module 21, the time block 113 of video output terminal 1 is provided with the data acquisition time of data acquisition module 121 in advance simultaneously, when data acquisition module 121 is video acquisition module, the acquisition rate that time block 113 is set video acquisition module is identical with video frame rate, promptly every two field picture is all gathered; When data acquisition module 121 was the audio collection module, the acquisition rate of time block 113 setting audio acquisition modules was identical with audio frequency acquired original rate, promptly each audio frequency original sample point is gathered;
2) when video output terminal 1 when playing TV programme, data acquisition module 121 is gathered television output signal according to the data acquisition time in the step 1) and the data that collect is sent to and changes platform judging module 111;
3) change platform judging module 111 according to step 2) in the data of gathering the switching of television channel is judged, switch if judge television channel, then trigger segment acquisition control module 112 orders and carry out step 4), step 5) and step 6), do not switch if judge television channel, then repeating step 2) and 3);
4) picture signal of 112 pairs of picture signal output modules of segment acquisition control module, 13 outputs is carried out the tile data collection, segment acquisition control module 112 appears at the highest upper left side of video screen upper frequency and the characteristics in top-right zone according to station symbol, at first gather the upper left side and the top-right tile data of video image, and the time point data of gathering clock module 15 simultaneously;
5) data transmit-receive module 16 of video output terminal 1 is sent to processing server 2 with the tile data and the time point data of gathering in the step 4) by network interface 17;
6) Data Receiving of processing server 2 and feedback module 22 receiving steps 5) in tile data and time point data, station symbol search module 231 will be searched in the station symbol pattern data information that store in the station symbol database 211 of tile data in step 1) of being gathered in the step 4), if in tile data, successfully search out TV station's station symbol pattern, the television station channel of then determining the user and being watched; If search failure, the object information that Data Receiving and feedback module 22 will be searched for failure feeds back to video output terminal 1, the segment acquisition control module 112 of video output terminal 1 is adjusted the segment acquisition scheme, for example adjust patterns locations and increase segment size that segment is gathered, continue the picture signal of picture signal output module 13 outputs is carried out the tile data collection;
7) the program inquiry module 232 of processing server 2 is according to determined television station channel in the step 6), binding time point data query steps 1) in the television program schedule information in playbill data storehouse 212, determine the content of TV program that the user watches;
8) counting statistics module 24 counts the audience ratings of TV station and TV programme thereof according to determined content of TV program in determined television station channel and the step 7) in the step 6), and audience ratings is stored in the ratings database 213, in order to inquiry.
As shown in Figure 3, when data acquisition module 121 when gathering the audio collection module of voice data, change platform judging module 111 described in the step 3) according to step 2) in the data of gathering specifically comprise step by step following to the method that the switching of television channel judges:
3)-a. changes platform judging module 111 and receives the voice data of audio collection module collections and choose audio frequency comparison sampled point;
3)-b. changes platform judging module 111 and calculates step by step 3)-volume of selected audio frequency comparison sampled point among a, obtain the volume range value of each sampled point;
3)-if c. is step by step 3)-the volume range value that obtains among the b makes the judgement of audio mute less than the audio frequency thresholding;
3)-d. changes platform judging module 111 and makes quiet judgement m time continuously, the value of m can be elected the crude sampling of 1 second audio frequency as and count, and is 22000 as the m value, if 22000 quiet judgements appear in expression continuously, the quiet of 1 second of duration promptly occur, judge that then the television channel handover event takes place.
As shown in Figure 4, when data acquisition module 121 when gathering the video acquisition module of vedio data, above-mentioned steps 3) described in change platform judging module 111 according to step 2) in the data of gathering specifically comprise step by step following to the method that the switching of television channel judges:
3)-A. changes the vedio data of platform judging module 111 receiver, video acquisition module collections and chooses image comparison pixels point;
3)-B. changes platform judging module 111 and calculates step by step 3)-pixel value of selected pixel among the A;
3)-if C. is step by step 3)-pixel value that obtains among the B is lower than video threshold, makes the judgement that video image is a blank screen;
3)-D. if pixel value be not less than video threshold, change platform judging module 111 with the pixel value of pixel selected in this image respectively with the last sub-picture of video acquisition module collection on the pixel value of each pixel of same position subtract each other and obtain pixel value difference, if pixel value difference less than the video thresholding, changes the judgement that platform judging module 111 is made image freeze;
3)-E. changes platform judging module 111 and makes the judgement of blank screen or image freeze n time continuously, the value of n can be elected the frame number of 1 second video as, is 30 as the n value, if expression occurs 30 times continuously, promptly the blank screen in 1 second or image freeze judge that then the television channel handover event takes place.
Step by step 3)-and change platform judging module 111 described in the A to choose image comparison pixels point, can distinguish 5 image comparison pixels points in upper left, upper right, lower-left, bottom right and the centre position of selecting video image.
In a word, what embodiments of the invention were announced is its preferred implementation, but is not limited to this.Those of ordinary skill in the art understands spirit of the present invention very easily according to the foregoing description, and makes different amplifications and variation, but only otherwise break away from spirit of the present invention, all within protection scope of the present invention.
Claims (10)
1. audience rating statistical system, comprise video output terminal, the processing server that is connected by network with described video output terminal, described video output terminal comprises microprocessor at least, the TV signal processing module that is connected with described microprocessor respectively, the picture signal output module, the voice signal output module, clock module and data transmit-receive module, described data transmit-receive module is connected with described processing server by network interface, it is characterized in that: be provided with the data acquisition module of gathering its output signal in the described TV signal processing module, be provided with in the described microprocessor according to the data of described data collecting module collected judge whether television channel switch change the platform judging module and under described triggering of changing the platform judging module, carry out the collection of video segment the segment acquisition control module reach the time block that timing acquisition time is provided for described data acquisition module.
2. audience rating statistical according to claim 1 system is characterized in that: described data acquisition module is for gathering the audio collection module of voice data.
3. audience rating statistical according to claim 1 and 2 system is characterized in that: described data acquisition module is for gathering the video acquisition module of vedio data.
4. audience rating statistical according to claim 1 system, it is characterized in that: described processing server comprises the database module that is used for store digital information, be used to receive image data information that described video output terminal uploads and Data Receiving and the feedback module that the processing result information of described processing server is fed back to described video output terminal, data retrieval that the image data information that described Data Receiving and feedback module are received is searched for and inquired about in described database module and enquiry module and the counting statistics module of audience ratings being added up and being calculated according to the retrieval and the Query Result of described data retrieval and enquiry module.
5. audience rating statistical according to claim 4 system is characterized in that: described database module comprise storage bed mark on a map the case data message the station symbol database, store the playbill data storehouse of program schedule information and the ratings database that stores the audience rating statistical object information.
6. the statistical method of an audience rating statistical as claimed in claim 1 system is characterized in that, may further comprise the steps:
1) station symbol pattern data information and the television program schedule information with TV station is stored in the database module of processing server in advance, and the time block of video output terminal is provided with the data acquisition time of data acquisition module in advance;
2) when video output terminal when playing TV programme, data acquisition module is gathered television output signal according to the data acquisition time in the step 1) and the data that collect is sent to and changes the platform judging module;
3) change the platform judging module according to step 2) in the data of gathering the switching of television channel is judged, judging television channel switches, then trigger the segment acquisition control module and carry out step 4), step 5) and step 6) in proper order, judge television channel and do not switch, then repeating step 2) and 3);
4) the segment acquisition control module is carried out the tile data collection to the picture signal of picture signal output module output, and gathers the time point data of clock module simultaneously;
5) data transmit-receive module of video output terminal is sent to processing server with the tile data and the time point data of gathering in the step 4) by network interface;
6) Data Receiving of processing server and feedback module receiving step 5) in tile data and time point data, search in data retrieval and enquiry module store the tile data of being gathered in the step 4) in step 1) in the database module the station symbol pattern data information, in tile data, search out TV station's station symbol pattern, the television station channel of then determining the user and being watched;
7) data retrieval of processing server and enquiry module be according to determined television station channel in the step 6), binding time point data query steps 1) in the television program schedule information of database, determine the content of TV program that the user watches;
8) the counting statistics module counts the audience ratings of TV station and TV programme thereof according to determined content of TV program in determined television station channel and the step 7) in the step 6).
7. the statistical method of audience rating statistical according to claim 6 system is characterized in that: change the platform judging module described in the step 3) according to step 2) in the data of gathering the switching of television channel is judged, comprise step by step following:
3)-a. changes the platform judging module and receives the voice data of audio collection module collection and choose audio frequency comparison sampled point;
3)-b. changes the platform judging module and calculates step by step 3)-volume of selected audio frequency comparison sampled point among a, obtain the volume range value of each sampled point;
3)-c. step by step 3)-the volume range value that obtains among the b makes the judgement of audio mute less than the audio frequency thresholding;
3)-d. changes the platform judging module and makes quiet judgement continuously, judges that then the television channel handover event takes place.
8. according to the statistical method of claim 6 or 7 described audience rating statistical systems, it is characterized in that: change the platform judging module described in the step 3) according to step 2) in the data of gathering the switching of television channel is judged, comprise step by step following:
3)-A. changes the vedio data of platform judging module receiver, video acquisition module collection and chooses image comparison pixels point;
3)-B. changes the platform judging module and calculates step by step 3)-pixel value of selected pixel among the A;
3)-C. step by step 3)-pixel value that obtains among the B is lower than video threshold, makes the judgement that video image is a blank screen, and carry out step by step 3)-E, pixel value is not less than video threshold, order carries out step by step 3)-D and step by step 3)-E;
3)-D. change the platform judging module with the pixel value of pixel selected in this image respectively with the last sub-picture of video acquisition module collection on the pixel value of each pixel of same position subtract each other and obtain pixel value difference, pixel value difference changes the judgement that the platform judging module is made image freeze less than the video thresholding;
3)-E. changes the judgement that the platform judging module is made blank screen or image freeze continuously, judges that then the television channel handover event takes place.
9. the statistical method of audience rating statistical according to claim 6 system, it is characterized in that: described in the step 1) station symbol pattern data information of TV station is stored in advance the station symbol database of database module, television program schedule information is stored in advance the playbill data storehouse of database module.
10. the statistical method of audience rating statistical according to claim 6 system, it is characterized in that: data retrieval described in the step 6) and enquiry module are searched for the station symbol pattern data information that the tile data of being gathered in the step 4) stores in the database module in step 1), if search failure, the object information that Data Receiving and feedback module will be searched for failure feeds back to video output terminal, the segment acquisition control module of video output terminal is adjusted the segment acquisition scheme, and continues the picture signal of picture signal output module output is carried out the tile data collection.
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| CN108235137A (en) * | 2018-03-22 | 2018-06-29 | 青岛海信电器股份有限公司 | It is a kind of that method, apparatus and the television set that platform acts are cut by sound waveform judgement |
| CN108235137B (en) * | 2018-03-22 | 2021-03-02 | 海信视像科技股份有限公司 | Method and device for judging channel switching action through sound waveform and television |
| CN111401165A (en) * | 2020-03-06 | 2020-07-10 | Tcl华星光电技术有限公司 | Station caption extraction method, display device and computer-readable storage medium |
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