CN108510308A - A kind of movie theatre screening system and method based on EEG signals feature - Google Patents
A kind of movie theatre screening system and method based on EEG signals feature Download PDFInfo
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Abstract
The present invention relates to a kind of movie theatre screening system and method based on EEG signals feature.The present invention includes audience feedback module, the holonomic system of questionnaire survey module, database module, integrated information processing module, result display module composition, its flow includes mainly the acquisition module of EEG signals, four part of the preprocessing module of brain electric information, data scrubbing module and data analysis module in audience feedback module, and includes mainly two parts of film pricing information acquisition module and movie contents information acquisition module in questionnaire survey module.The data that audience feedback module and questionnaire survey module obtain then are put into database module to compare and analyze, show that analysis result is shown in equipment by establishing movie theatre screening comprehensive evaluation index by integrated information processing module, to reasonable arrangement movie theatre screening.The present invention has movie theatre screening statistics at low cost, and gathered data is more complete, the accurate feature of the data counted.
Description
Technical field
The present invention relates to a kind of movie theatre screening system and method, especially a kind of movie show based on EEG signals feature
Preceding movie theatre screening system and method.
Background technology
The screening system of movie theatre is mostly to use more traditional artificial collection analysis at present, and there is cost of labor mistakes
Height acquires excessively sparse sufficiently complete, the factors such as data deficiency accuracy, can not establish effectively perfect data branch
Support, easily leads to the film that do not show and occurs very chaotic and unreasonable situation in movie theatre screening, can be produced to the movie theatre investor
Raw larger investment risk.
Corresponding economic effect, psychological effects and society's effect can be generated by carrying out reasonable analysis to the screening system of movie theatre
Fruit.Specifically, huge social effectiveness can be generated by the one hand referring to a successful film, to which indirect gain removes film
More economic benefits other than box office, on the other hand, film can also influence the psychology of society, emotion cognition etc., be come with this
Cause support of more people to film, the excitation investor invests shooting New cinema.Traditional movie theatre screening method objectivity, section
The property learned and reliability are constantly subjected to query.
With the development of psychological field and neurology field, eye movement, skin electrical effect start to be applied to every field, can
Tentatively to obtain corresponding effect by the method directly tested so that final acquired results are more directly and objective.However, this
Kind method fails accurately to analyze experimental subjects brain, and carries out analyzing to be only directly acquiring to the information acquired in brain
The unique channel of the true idea of experimental subjects.Huge progress is achieved in terms of in the 21st century, brain science, starts to be used extensively
In fields such as medical treatment, economy and military affairs, and brain imaging technique also begins to come into the sight of marketing domain, initially as research brain
The important means of cognition, emotion processing.
Invention content
It is an object of the invention to overcome the deficiencies of existing technologies, movie theatre before existing movie show can be solved by providing one kind
Cost of labor present in screening is excessively high, acquires excessively sparse sufficiently complete, the movie theatre screening side of data deficiency accuracy problem
Method, the object of the invention also reside in offer system for carrying out the process, reduce the risk of the movie theatre investor to the greatest extent.
Technical scheme is as follows：
A kind of movie theatre screening system based on EEG signals feature, including audience feedback module, questionnaire survey module, database mould
The signal output end of block, integrated information processing module, result display module, the audience feedback module and questionnaire survey module point
It is not connect with the signal input part of database module, signal output end and the integrated information processing module of carried database module
Signal input part connects, and the output end of the integrated information processing module and the signal input part of result display module connect；
The audience feedback module is used to acquire and analyze the brain electric information that spectators watch movie trailer；
The impression that the questionnaire survey module is used to count spectators for the opinion and movie trailer content of film price；
The database module is for storing data information collected by audience feedback module and questionnaire survey module；
The integrated information processing module is for carrying out data information collected by audience feedback module and questionnaire survey module
Analysis；
The result display module includes computer, mobile phone and display screen.
The audience feedback module includes that video playback apparatus, experimental subjects, electroencephalogramsignal signal collection equipment, experimental paradigm are set
Meter, brain electric information preprocessing module, data scrubbing module and data analysis module；
The questionnaire survey module includes film pricing information acquisition module and movie contents information acquisition module.
Audience feedback module and questionnaire survey module collection information are simultaneously sent to database module, and database module is again by institute
There is information to be sent to integrated information processing module, the comprehensive evaluation index of movie theatre screening established in integrated information processing module,
Then data and conclusion that the processing of integrated information processing module obtains are sent to result display module and shown.
The comprehensive evaluation index includes three parts：（1）Audience feedback module section is by data-analyzing machine module from time domain
The brain electric information obtained with two aspect of frequency domain, the energy indexes that extraction calculates the two frequency range refer to as the impression of film scene
Mark；（2）Questionnaire survey mould film pricing information acquisition module in the block tests about the film ticket that will be shown experimental subjects
Valence view and the related statistical analysis for proposing information；（3）Questionnaire survey mould movie contents information acquisition module in the block is to difference
Experimental subjects recall the related film scene recorded obtained by scene with deep impression should be counted.
In order to optimize the design system, the design completion of experimental paradigm described in the design is divided into two steps, i.e. experiment material is accurate
Standby, experimental data acquisition.
IMEMD methods obtained from the brain electric information preprocessing module is combined as ICA methods and MEMD methods are by EEG
Signal carries out blind source separating, then identifies noise therein with fractal dimension, finally uses recursive least square（RLS）To its carry out
Adaptive-filtering.
The design is added to data scrubbing module, and the equipment can use adaptive-filtering and weighted average in experimentation
Denoising is carried out to collected data.
The design also added data analysis module, it can carry out the information obtained in terms of time domain and frequency domain two
Comprehensive analysis.
Beneficial effects of the present invention：The present invention can carry out reasonable distribution before movie show to movie theatre screening；It can also
For analyzing the quality that will show film；The present invention can obtain human body EEG signals and questionnaire survey by way of into
Row comprehensive analysis is obtained a result, and the interference of subjective factor is avoided.
Description of the drawings
Fig. 1 is movie theatre screening system general diagram.
Fig. 2 is EEG signal wireless collection equipment.
10-20 modular system of the worlds Tu3Shi.
Fig. 4 is the main electrodes label used in experiment.
Specific implementation mode
The present invention is further described in the following with reference to the drawings and specific embodiments.
Embodiment 1：As shown in Figs 1-4, a kind of movie theatre screening system based on EEG signals feature, including audience feedback mould
Block, questionnaire survey module, database module, integrated information processing module, result display module, the audience feedback module and are asked
The signal output end of volume inquiry module is connect with the signal input part of database module respectively, and the signal of carried database module is defeated
Outlet is connect with the signal input part of integrated information processing module, and output end and the result of the integrated information processing module are shown
The signal input part of module connects.
Wherein audience feedback module includes video playback apparatus module, experimental subjects（Man and female）, eeg signal acquisition sets
Standby module, experimental paradigm design, brain electric information preprocessing module, data scrubbing module and data analysis module.Its midbrain telecommunications
Number collecting device module uses 32 channel crosslinking electrode caps, signal acquisition amplifier and the connector of rich farsighted Kanggong department, depending on
Frequency playback equipment module, brain electric information preprocessing module, data scrubbing module and data analysis module are all made of common computer,
Button is operated as required by participant, and correspondence markings can be left in collected EEG signals by lower button.Specific implementation
Process is as follows：
Step 1：The Preparatory work of experiment stage
Video content of the trailer for the film that this experiment will be shown firstly the need of preparation as required broadcasting, trailer time
It is unsuitable too short or long, it is maintained at as possible within ten minutes, and the larger content of controversial should not occur, avoids experimental subjects feelings
Thread generates larger fluctuation, and should ensure that experimental subjects from not in contact with the movie trailer related content excessively.Meanwhile it being broadcast in trailer
Before putting, it is desirable that experimental subjects keeps relaxation state of sitting quietly, and the time was best with three minutes, so that experimental subjects can keep best shape
State enters experiment as early as possible, while can be conveniently operated personal observations' experimental subjects EEG signals state, it is ensured that brain wave is stablized.When
After experimental subjects is ready, while operating personnel also confirm that brain wave is normal, opens trailer video and starts countdown 10s,
And brain wave acquisition EM equipment module is opened, it starts to work.
Step 2：Original eeg signal acquisition
The men and women in 50 all ages and classes stages without any nervous system medical history of this experimental selection as experimental subjects, including
Each 25 of men and women, and it is divided into 5 different age levels, each 5 of respectively 10 ~ 20 years old men and women, each 5 of 20 ~ 30 years old men and women, 30
~ 40 years old each 5 of men and women, each 5 of 40 ~ 50 years old men and women, each 5 of 50 ~ 60 years old men and women amount to experimental subjects 50, participate in batches
Experiment.In experimentation, different men and women's experimental subjects in age-grade stage are sitting on the chair of relative comfort, are concentrated on
The movie trailer content that video playback apparatus module plays is watched, and requires experimental subjects from not in contact with the advance notice for crossing broadcasting
Piece related content avoids repetitive memory from generating subjective impact.Electroencephalogramsignal signal collection equipment mould brain wave acquisition equipment in the block is obtaining
During taking experimental subjects brain electric information, sample rate should be maintained at 256, bandpass filtering should be maintained at 0.5 ~ 50It
Between, meanwhile, electrode impedance should be less than 5。
Step 3：EEG signals pre-process
1）Using the wireless brain wave acquisition equipment in 32 channels of rich farsighted Kanggong department as portable brain electric installation.The equipment includes lead
Electrode cap, signal acquisition amplifier and connector.Wherein, connector is for connection to electrode cap and signal acquisition amplifier.
2）Subject's scalp EEG signals are recorded by EEG, the allocation method of electrode refers to 10-20 standards, specific side
Formula is as shown in Figure 3, wherein for the interference for reducing between electrode and scalp, resistance should be less than 5k Ω in experimentation.
3）The average value of N number of electrode signal is recorded by CAR filters to evaluate the electricity of each electrode of each moment again
Position.Its normal form is as follows.
4）During removing eye artefact, IMEMD methods are divided into two steps, first, are pre-processed to mixed signal to optimize
Algorithm is extracted eye electricity artefact, and member-retaining portion brain electric information from EEG signals by MEMD, then passed through again completely
ICA isolates eye electricity artefact from EEG signals, calculates the fourth order cumulant of isolated component, and removal eye electricity extracts isolated component.
Step 4：Data scrubbing module
Adaptive-filtering is carried out to collected data using the equipment during the experiment and weighted average carrys out denoising.
Step 5：Data analysis module
Comprehensive analysis is carried out to the brain electric information obtained in terms of time domain and frequency domain two using data-analyzing machine module in experiment.
Step 6：Film scene impression Index Establishment
By understanding the characteristic of the physiological mechanism of EEG, especially human brain EEG during handling Memory Process and attention,
It handling in Memory Process, there is synchronia in theta frequency ranges, and in processing attention process, alpha frequency ranges, which will appear, to desynchronize
Phenomenon.Therefore, it is based on principles above, the energy indexes that the present invention is extracted both calculating frequency range refer to as the impression of film scene
Mark.
Wherein questionnaire survey module includes film pricing information acquisition module, movie contents information acquisition module.It is specific real
It is as follows to apply process：
Step 1：Film pricing information acquires
After completing movie trailer and playing, the different sexes and the experimental subjects in all ages and classes stage of participating in experiment remove electrode
After cap, operating personnel carry out questionnaire survey acquisition different experiments object for the film fare that will show to experimental subjects immediately
View and related proposal information, and recorded.
Step 2：Movie contents information collection
After the broadcasting for completing movie trailer, the different sexes and the experimental subjects in all ages and classes stage of participating in experiment remove electricity
After polar cap, operating personnel carry out questionnaire survey to experimental subjects immediately, during questionnaire, allow different experimental subjects by its institute
Associated scenario is described in the movie trailer remembered, suitably puts question to experimental subjects, to understand more details, to it
Described film scene carries out more accurate positioning, and different experiments object is recalled to the related film scene gone out and is remembered
Record, is labeled as scene with deep impression, which will bring into subsequent data library module and by audience feedback module
The conclusion that middle brain electricity analytical obtains compares and analyzes.
Operating personnel are by collected film pricing information and movie contents information imports or typing questionnaire survey module, ask
Volume inquiry module transmits these information to database module, while the information of audience feedback module has been also sent to database mould
All information are sent to integrated information processing module by block, database module, and movie theatre row is established in integrated information processing module
Piece comprehensive evaluation index：First, audience feedback module section is obtained by data-analyzing machine module in terms of time domain and frequency domain two
Brain electric information, i.e., in handle Memory Process, theta frequency ranges synchronia and handling attention process, alpha frequency ranges
Synchronia carries out statistics comparison, and extraction calculates impression index of the energy indexes of the two frequency range as film scene, works as theta
When the frequency range frequency of occurrences is higher and the alpha frequency range frequencies of occurrences are less, show memory and attention of the substance film to spectators at this time
Power has a humidification, and side reflects that played substance film extremely attracts spectators, and should give priority in arranging for screening, and should ensure that compared with
High screening rate, vice versa.Secondly, electricity is completed to questionnaire survey mould film pricing information acquisition module experimental subjects in the block
After the viewing of shadow trailer, different experiments object carries out statistical for the film fare view that will be shown and related proposal information
Analysis, when spectators suggest that a certain admission fee section occupies 50% or more of all suggestion admission fee sections, you can appraise and decide ticket to the film
Valence meets customer expected price of the spectators for film admission fee with this, preferably controls the fund input of movie theatre.Finally, to questionnaire tune
Look into mould movie contents information acquisition module different experiments object in the block recall the related film scene recorded obtained by print
It, can be generally through impression when the deep scene of viewer impression occupies movie trailer content 50% as deep scene should be counted
Deep scene delineations go out trailer main contents, that is, reflect that played substance film extremely attracts spectators, should the row of giving priority in arranging for
Piece, and should ensure that higher screening rate.Data and conclusion that the processing of integrated information processing module obtains are sent to result and shown
Module is shown.The result display module includes computer, mobile phone and display screen.Last movie theatre screening module, refer to by
Audience feedback module is matched with the information that questionnaire survey module obtains, and is obtained by integrated information processing module analyzing processing
The conclusion shown allows movie theatre reasonable distribution to carry out screening with this.
The above is only a preferred embodiment of the present invention, and not limitation of the present invention.Those skilled in the art
Member is when understanding, to various combinations, modification or equivalent replacement that technical scheme of the present invention carries out, without departure from the technology of the present invention side
The spirit and scope of case should all cover in scope of the presently claimed invention.
Claims (4)
1. a kind of movie theatre screening system based on EEG signals feature, it is characterised in that：Including audience feedback module, questionnaire survey
Module, database module, integrated information processing module, result display module, the audience feedback module and questionnaire survey module
Signal output end connect respectively with the signal input part of database module, the signal output end and synthesis of carried database module
The signal input part of message processing module connects, the signal of the output end and result display module of the integrated information processing module
Input terminal connects；
The audience feedback module is used to acquire and analyze the brain electric information that spectators watch movie trailer；
The impression that the questionnaire survey module is used to count spectators for the opinion and movie trailer content of film price；
The database module is for storing data information collected by audience feedback module and questionnaire survey module；
The integrated information processing module is for carrying out data information collected by audience feedback module and questionnaire survey module
Analysis.
2. the movie theatre screening system according to claim 1 based on EEG signals feature, it is characterised in that：The spectators are anti-
Feedback module includes video playback apparatus, experimental subjects, electroencephalogramsignal signal collection equipment, experimental paradigm design, brain electric information pretreatment
Module, data scrubbing module and data analysis module；
The questionnaire survey module includes film pricing information acquisition module and movie contents information acquisition module.
3. a kind of movie theatre screening method based on EEG signals feature, it is characterised in that：Audience feedback module and questionnaire survey mould
Block collects information and is sent to database module, and all information are sent to integrated information processing module by database module again,
The comprehensive evaluation index of movie theatre screening is established in integrated information processing module, then obtains the processing of integrated information processing module
Data and conclusion are sent to result display module and show.
4. the movie theatre screening method according to claim 3 based on EEG signals feature, it is characterised in that：The synthesis is commented
Valence index includes three parts：（1）Audience feedback module section is obtained by data-analyzing machine module in terms of time domain and frequency domain two
Brain electric information, extraction both calculates impression index of the energy indexes as film scene of frequency range；（2）In questionnaire survey module
Film pricing information acquisition module experimental subjects is tested about the film fare view that will show and related proposes information
Statistical analysis；（3）Questionnaire survey mould movie contents information acquisition module in the block recalls the correlation to different experiments object
Film scene recorded obtained by scene with deep impression should be counted.
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