CN108983966A - Reformation of convicts assessment system and method based on virtual reality and eye movement technique - Google Patents
Reformation of convicts assessment system and method based on virtual reality and eye movement technique Download PDFInfo
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- 210000005252 bulbus oculi Anatomy 0.000 description 3
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Abstract
The reformation of convicts system and method based on virtual reality and eye movement technique that the invention discloses a kind of, the described method includes: receiving interactive information of the criminal of virtual reality interactive device acquisition in virtual reality scenario in interactive process, the interaction is carried out according to the interaction link of setting；Reformation of convicts assessment is carried out using the decision tree prediction model pre-established.The present invention effectively makes assessment to reformation of convicts situation by various actions in record criminal's interactive process and characteristic information, avoid criminal in transformation process wheel and deal and the case where cheat prison police, really reflect reformation of convicts.
Description
Technical field
The present invention relates to prison convicts, and evaluation areas, more particularly to the reformation of convicts based on VR interaction and eye movement technique is transformed
Assessment.
Background technique
Currently, the reformatory education of criminal is core and the main task of China prison constitution, pass through the education in prison
Modernization system enables criminal to be transformed into the good citizen for abiding by the law, supporting oneself.The reformatory education of criminal is
The system engineering of one very complicated and arduousness, the assessment simultaneously for reformation of convicts situation are also an arduousness and have continuity
Work, to promoted reformatory education criminal mass play a crucial role.Traditional reformation of convicts assessment mainly has: one
Be by the transformation performance of observation criminal and collected relevant information by prison police and carry out comprehensive assessment, second is that by pair
Criminal carries out psychological test and obtains psychological test data and assess.However, having quite a few in reformatory education of convicts
Criminal administration of not pleading guilty and is felt at ease transformation but wheel and deal and reaches commutation by every means, paroles due to transformation consciousness desalination
Purpose.Traditional reformation of convicts appraisal procedure is difficult to make correct and effectively assess in response to this.
With the rapid development of science and technology, VR recent years (virtual reality) technology is very mature, and corresponding product is in people
It is also more more and more universal in daily life.VR Related product mainly utilizes computer to generate a kind of simulated environment, is multi-source letter
The system emulation of breath fusion, interactive Three-Dimensional Dynamic what comes into a driver's and entity behavior, can simulate the several scenes mould in reality
Formula.During the continuous development of computer vision technique, eye movement technique also obtains in-depth study.Also have currently on the market
The product that eye movement technique and VR are combined can capture the various information datas of limbs and head and expression in the eyes etc. of user.The heart
In Neo-Confucianism, the various information datas such as the limbs of people and head and expression in the eyes and people's thought have in certain environment scene
Certain connection.
How reformation of convicts assessment is more objectively and accurately carried out, is that the technology that those skilled in the art urgently solve at present is asked
Topic.
Summary of the invention
To overcome above-mentioned the deficiencies in the prior art, the present invention provides a kind of criminal based on virtual reality and eye movement technique
Assessment system and method is transformed, by a variety of daily life scenes of VR technical modelling, criminal can in the VR scene of simulation into
Row interaction.Various actions and characteristic information in criminal's interactive process are recorded using VR technology combination eye movement technique, for acquisition
Information kept away to effectively make assessment to reformation of convicts situation using the further modeling analysis of data mining and prediction
The criminal of exempting from punishment in transformation process wheel and deal and the case where cheat prison police, really reflect reformation of convicts.
To achieve the above object, the present invention adopts the following technical scheme:
A kind of reformation of convicts assessment system based on virtual reality and eye movement technique, comprising: virtual reality interactive device and
Background server, wherein
Interactive information of the virtual reality interactive device acquisition criminal in virtual reality scenario in interactive process, and pass
Transport to the background server；The interaction is carried out according to the interaction task of setting；
The background server receives the interactive information, carries out criminal using the decision tree prediction model pre-established and changes
Make assessment.
Further, the interactive information includes the number interacted in interactive process for each interaction task, frequency, holds
Continuous time, total duration percentage and action message, mood and eye movement information shared in entire interaction time.
Further, the action message includes movement posture.
Further, the eye movement information includes attention rate of the criminal to region each in simulated scenario.
It further, include criminal's information database in the background server, for storing the essential information of each criminal
And test data.
Further, the establishment process of the decision tree are as follows:
Outstanding, good, qualified, the underproof four groups of criminals of the transformation of the known transformation situation of same number are selected respectively,
Using the interactive information of virtual reality interactive device acquisition criminal as training set；
The interactive information is quantified and is converted into characteristic vector data；
Pass through decision Tree algorithms training prediction model.
Second purpose according to the present invention, the present invention also provides a kind of criminals based on virtual reality and eye movement technique to change
Make method, comprising the following steps:
Receive interactive information of the criminal of virtual reality interactive device acquisition in virtual reality scenario in interactive process, institute
Interaction is stated to carry out according to the interaction link of setting；
Reformation of convicts assessment is carried out using the decision tree prediction model pre-established.
Further, the establishment process of the decision tree are as follows:
Outstanding, good, qualified, the underproof four groups of criminals of the transformation of the known transformation situation of same number are selected respectively,
Using the interactive information of virtual reality interactive device acquisition criminal as training set；
The interactive information is quantified and is converted into characteristic vector data；
Pass through decision Tree algorithms training prediction model.
Third purpose according to the present invention, the present invention also provides a kind of criminals based on virtual reality and eye movement technique to change
Assessment device is made, including memory, processor and stores the computer program that can be run on a memory and on a processor, institute
It states when processor executes described program and realizes the method.
4th purpose according to the present invention, the present invention also provides a kind of computer readable storage mediums, are stored thereon with
Computer program, execution is described when which is executed by processor is assessed based on the reformation of convicts of virtual reality and eye movement technique
Method.
Beneficial effects of the present invention
1, the present invention can reflect crime from multiple angles by virtual reality device acquisition movement, mood and eye movement information
The psychological condition of criminal, therefore assessment result of the invention is compared to traditional directly observation or psychological test, better authenticity.
2, the present invention acquires criminal's interactive information data, and applied forecasting mould by virtual reality device combination eye movement technique
Type carries out analysis forecast assessment to interactive information data and goes out the transformation situation of criminal, to be effectively prevented from criminal since transformation is anticipated
Know desalination, administration of not pleading guilty and feel at ease to be transformed, but wheel and deal and goes to deal with the reformatory education in prison by every means and reach
The purpose reduce a penalty, paroled, the case where really reflecting reformation of convicts, to solve the deficiency of existing reformation of convicts appraisal procedure
Place.
Detailed description of the invention
The accompanying drawings constituting a part of this application is used to provide further understanding of the present application, and the application's shows
Meaning property embodiment and its explanation are not constituted an undue limitation on the present application for explaining the application.
Fig. 1 is the overall structure figure assessed based on the reformation of convicts of virtual reality and eye movement technique.
Specific embodiment
It is noted that following detailed description is all illustrative, it is intended to provide further instruction to the application.Unless another
It indicates, all technical and scientific terms used herein has usual with the application person of an ordinary skill in the technical field
The identical meanings of understanding.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singular
Also it is intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, operation, device, component and/or their combination.
In the absence of conflict, the features in the embodiments and the embodiments of the present application can be combined with each other.
Due to the closed environment in prison, criminal is difficult the environment that touches society during serving a sentence, so many criminals are to increasingly
The social environment of change is very strange.The present invention is using the daily life several scenes in VR technical modelling society, including traffic field
Scape (aircraft station, railway station, bus station, subway station, bus station etc.), shopping scene (megastore, electric business simulated scenario etc.), society
The scene for handing over modern societies' characteristics such as scene (wechat, QQ etc.) to represent, is arranged corresponding simulation as desired in every kind of scene
Real-life interactive session allows criminal to carry out interaction in simulated scenario and realizes intelligent interaction.
The present invention utilizes the various real life scenarios of VR technical modelling, criminal can be allowed in simulation yard by front end VR equipment
Intelligent interaction is carried out in scape, and acquires the expression in the eyes signal of criminal's interactive process, to the attention rate in region each in simulated scenario, dynamic
Work, movement posture, mood, the number of various interactions, frequency, duration, total duration institute in entire interaction time
The data informations such as the percentage accounted for carry out the modeling analysis of prediction model using decision Tree algorithms, to adopting to given data information
Criminal's interactive information data application prediction model of collection is predicted, so that the transformation situation to criminal is assessed.
Embodiment one
The reformation of convicts assessment system based on virtual reality and eye movement technique that present embodiment discloses a kind of, including wear-type
Virtual reality interactive device and background server.
Wear-type virtual reality interactive device, comprising:
Scene display device, for display virtual real interaction scenarios and interaction task；Criminal according to setting interaction
Task is interacted with the scene.
Behavior acquisition device for acquiring motion images of the criminal in virtual reality scenario in interactive process, and transmits
To data processing equipment；
Facial acquisition device for acquiring face-image of the criminal in virtual reality scenario in interactive process, and transmits
To data processing equipment；
Eye-tracking device for acquiring eyeball image of the criminal in virtual reality scenario in interactive process, and transmits
To data processing equipment；
Data processing equipment shows dress for receiving to be directed to the selection of virtual reality interaction scenarios and export to the scene
It sets；
Criminal's motion images of the behavior acquisition device transmission are received, and based on described in the signature analysis such as head and limbs
The action message and operational order of criminal；
According to the operational order and interaction task, analyze interactive process in for each interaction task interaction number,
Frequency, duration, total duration percentage shared in entire interaction time；Specifically, entire interaction time is
Total duration that criminal interacts every time, interaction number indicate the interaction number that task is individually interacted in entire interaction time,
Duration indicates the single interaction time of individually interaction task, and total single interaction task of duration expression interacts multiple
Total time.
Criminal's face image data of the behavior acquisition device transmission is received, and is analyzed based on the face image data
The mood of the criminal；
Criminal's eyeball image data of the behavior acquisition device transmission is received, and based on image processing techniques come the crime of extracting
The feature of the eyeball pupil of criminal calculates criminal to the attention rate in region each in simulated scenario by these features in real time；
Background server, comprising:
Data acquisition device acquires the information data of front end VR interactive device record by wireless network in real time, and to adopting
The information data of collection carries out pretreatment and removes noise and certain incoherent or redundancy information, the Information Number that will have been pre-processed
According to deposit criminal's information database；Criminal's information database establishes different numbers according to the different attribute of criminal's information data
According to gauge outfit, including criminal's name, criminal's testing time, the attention rate to each region of scene of expression in the eyes signal, criminal of criminal, criminal
Movement, the movement posture of criminal, the mood of criminal and the number of various interactions, frequency, duration, total duration
Shared percentage, criminal's information database can not only provide in entire interaction time for subsequent data analysis and modeling
Data can also facilitate prison police to carry out real-time query.
Reformation of convicts assesses device, interactive data of the criminal to serve a sentence in VR scene is acquired, using established prediction
Model predicts the data of acquisition, to evaluate the transformation situation of criminal and provide assessment result (outstanding, good, conjunction
It is lattice, unqualified).
The training process of the prediction model is as follows: preparatory according to known criminal's interactive information data using decision Tree algorithms
Establish a prediction model.
Determine training set: according to selected respectively the case where known reformation of convicts the transformation of same number it is outstanding, it is good, close
Lattice, underproof criminal allow them to combine the reformation of convicts assessment system of eye movement technique to establish based on VR interaction of the invention
Simulated scenario in interacted, to acquire the interactive information data of criminal as training set；The interactive information data packet
Include: recording the various information such as movement, movement posture, mood of criminal, and count the numbers of various interactions, frequency, the duration,
The concern of percentage shared in entire interaction time of total duration etc. and criminal to region each in simulated scenario
Degree；
Data conversion: acquiring criminal in simulated scenario interaction and pretreated information data, due to its data
The data for belonging to different dimensions need to carry out data conversion.The present invention standardizes (zero-mean using z-score
Normalization) algorithm to acquire and pretreated information data carry out data normalization processing, to solve data target
Between comparativity, after data normalization is handled, each data target is in the same order of magnitude, is finally quantized into feature vector
Data；
Prediction model training: model is made to have preferable robustness by decision Tree algorithms training prediction model.
The present invention forms front end VR interactive device, front end VR interaction using the VR helmet and combination eye movement technique of current mainstream
Equipment can be by wireless network to backstage real-time transmission data.Front end VR interactive device of the invention can allow criminal built
It is interacted in vertical simulated scenario according to the interaction link of setting, for example, criminal can be handed over by VR in scene at the train station
Mutual equipment simulate in the scene buy train ticket and get tickets, safety check is entered the station, get on the bus according to ticket information, get off it is outbound etc..Criminal
In simulated scenario carry out intelligent interaction during, VR interactive device of the invention not only can recorde record criminal movement,
The various information such as movement posture, mood, and the numbers of various interactions, frequency, duration, total duration are counted entire
Shared percentage etc. in interaction time, and the present invention is also believed using the eye movement technique expression in the eyes in interactive process that apprehends a criminal
Number, and real-time statistics go out criminal to the attention rate in region each in simulated scenario.
Embodiment two
Present embodiments provide a kind of reformation of convicts appraisal procedure based on virtual reality and eye movement technique, including following step
It is rapid:
Receive interactive information of the criminal of virtual reality interactive device acquisition in virtual reality scenario in interactive process, institute
Interaction is stated to carry out according to the interaction link of setting；
Reformation of convicts assessment is carried out using the decision tree prediction model pre-established.
The establishment process of the decision tree are as follows:
Outstanding, good, qualified, the underproof four groups of criminals of the transformation of the known transformation situation of same number are selected respectively,
Using the interactive information of virtual reality interactive device acquisition criminal as training set；
The interactive information is quantified and is converted into characteristic vector data；
Pass through decision Tree algorithms training prediction model.
Embodiment three
The purpose of the present embodiment is to provide a kind of computing device.
It is a kind of that device, including memory, processor and storage are assessed based on the reformation of convicts of virtual reality and eye movement technique
On a memory and the computer program that can run on a processor, the processor realize following step when executing described program
Suddenly, comprising:
Receive interactive information of the criminal of virtual reality interactive device acquisition in virtual reality scenario in interactive process, institute
Interaction is stated to carry out according to the interaction link of setting；
Reformation of convicts assessment is carried out using the decision tree prediction model pre-established.
The establishment process of the decision tree are as follows:
Outstanding, good, qualified, the underproof four groups of criminals of the transformation of the known transformation situation of same number are selected respectively,
Using the interactive information of virtual reality interactive device acquisition criminal as training set；
The interactive information is quantified and is converted into characteristic vector data；
Pass through decision Tree algorithms training prediction model.
Example IV
The purpose of the present embodiment is to provide a kind of computer readable storage medium.
A kind of computer readable storage medium, is stored thereon with computer program, execution when which is executed by processor
Following steps:
Receive interactive information of the criminal of virtual reality interactive device acquisition in virtual reality scenario in interactive process, institute
Interaction is stated to carry out according to the interaction link of setting；
Reformation of convicts assessment is carried out using the decision tree prediction model pre-established.
The establishment process of the decision tree are as follows:
Outstanding, good, qualified, the underproof four groups of criminals of the transformation of the known transformation situation of same number are selected respectively,
Using the interactive information of virtual reality interactive device acquisition criminal as training set；
The interactive information is quantified and is converted into characteristic vector data；
Pass through decision Tree algorithms training prediction model.
Each step that above embodiments two, three and four are related to is corresponding with embodiment one, and specific embodiment can be found in reality
Apply the related description part of example one.Term " computer readable storage medium " is construed as including one or more instruction set
Single medium or multiple media；It should also be understood as including any medium, any medium can be stored, encodes or be carried
Instruction set for being executed by processor simultaneously makes processor either execute in the present invention method.
The present invention provides a kind of combines the reformation of convicts assessment system of eye movement technique and method to set by VR based on VR interaction
It is standby that eye movement technique is combined to acquire criminal's interactive information data, and applied forecasting model carries out interactive information data to analyze pre- assessment
Estimate the transformation situation of criminal out, thus be effectively prevented from criminal due to the desalination of transformation consciousness, administration of not pleading guilty and feel at ease to be transformed, and
It is wheel and deal and goes to deal with the reformatory education in prison by every means and achieve the purpose that commutation, parole, really reflects crime
The case where violating transformation, to solve the shortcoming of existing reformation of convicts appraisal procedure.
It will be understood by those skilled in the art that each module or each step of aforementioned present invention can be filled with general computer
It sets to realize, optionally, they can be realized with the program code that computing device can perform, it is thus possible to which they are stored
Be performed by computing device in the storage device, perhaps they are fabricated to each integrated circuit modules or by they
In multiple modules or step be fabricated to single integrated circuit module to realize.The present invention is not limited to any specific hardware and
The combination of software.
Above-mentioned, although the foregoing specific embodiments of the present invention is described with reference to the accompanying drawings, not protects model to the present invention
The limitation enclosed, those skilled in the art should understand that, based on the technical solutions of the present invention, those skilled in the art are not
Need to make the creative labor the various modifications or changes that can be made still within protection scope of the present invention.
Claims (10)
1. a kind of reformation of convicts assessment system based on virtual reality and eye movement technique, comprising: virtual reality interactive device is with after
Platform server, wherein
Interactive information of the virtual reality interactive device acquisition criminal in virtual reality scenario in interactive process, and be transmitted to
The background server；The interaction is carried out according to the interaction task of setting；
The background server receives the interactive information, carries out reformation of convicts using the decision tree prediction model pre-established and comments
Estimate.
2. the reformation of convicts assessment system based on virtual reality and eye movement technique as described in claim 1, which is characterized in that institute
Stating interactive information includes the number interacted in interactive process for each interaction task, frequency, duration, total duration
Shared percentage and action message, mood and eye movement information in entire interaction time.
3. the reformation of convicts assessment system based on virtual reality and eye movement technique as described in claim 1, which is characterized in that institute
Stating action message includes movement posture.
4. the reformation of convicts assessment system based on virtual reality and eye movement technique as described in claim 1, which is characterized in that institute
Stating eye movement information includes attention rate of the criminal to region each in simulated scenario.
5. the reformation of convicts assessment system based on virtual reality and eye movement technique as described in claim 1, which is characterized in that institute
It states comprising criminal's information database in background server, for storing the essential information and test data of each criminal.
6. the reformation of convicts assessment system based on virtual reality and eye movement technique as described in claim 1, which is characterized in that institute
State the establishment process of decision tree are as follows:
Outstanding, good, qualified, the underproof four groups of criminals of the transformation of the known transformation situation of same number are selected respectively, are used
The interactive information of the virtual reality interactive device acquisition criminal is as training set；
The interactive information is quantified and is converted into characteristic vector data；
Pass through decision Tree algorithms training prediction model.
7. a kind of reformation of convicts method based on virtual reality and eye movement technique, which comprises the following steps:
Receive interactive information of the criminal of virtual reality interactive device acquisition in virtual reality scenario in interactive process, the friendship
Mutually carried out according to the interaction link of setting；
Reformation of convicts assessment is carried out using the decision tree prediction model pre-established.
8. the reformation of convicts appraisal procedure based on virtual reality and eye movement technique as described in claim 1, which is characterized in that institute
State the establishment process of decision tree are as follows:
Outstanding, good, qualified, the underproof four groups of criminals of the transformation of the known transformation situation of same number are selected respectively, are used
The interactive information of the virtual reality interactive device acquisition criminal is as training set；
The interactive information is quantified and is converted into characteristic vector data；
Pass through decision Tree algorithms training prediction model.
9. a kind of assess device based on the reformation of convicts of virtual reality and eye movement technique, including memory, processor and is stored in
On memory and the computer program that can run on a processor, which is characterized in that the processor executes real when described program
Now such as the described in any item methods of claim 7-8.
10. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the program is by processor
Such as claim 7-8 described in any item reformation of convicts appraisal procedures based on virtual reality and eye movement technique are executed when execution.
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