CN108629121A - Based on the virtual reality crowd emulation mode and system for avoiding terrified paddy effect - Google Patents
Based on the virtual reality crowd emulation mode and system for avoiding terrified paddy effect Download PDFInfo
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- 230000000694 effects Effects 0.000 title claims abstract description 51
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- 239000002245 particle Substances 0.000 claims description 21
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Abstract
The invention discloses a kind of based on avoiding the virtual reality crowd emulation mode and system of terrified paddy effect, including avoids " terrified paddy " effect of visual aspects and " terrified paddy " effect in terms of tactile.In terms of avoiding vision " terrified paddy ", virtual portrait library module is added, in terms of avoiding tactile " terrified paddy ", personage's sound and ambient sound acquisition library module and collision dimness of vision module is added, effectively reduce and avoid the loss of discomfort and feeling of immersion that vision and tactile " terrified paddy " are brought to people, therefore the natural performance for making crowd simulation more someone, more can allow people on the spot in person, there is higher authenticity.
Description
Technical field
The present invention relates to a kind of based on the virtual reality crowd emulation mode and system that avoid terrified paddy effect.
Background technology
With the progress of the development and the mankind of society, the quantity of population also constantly increases, and people go on a journey major public
The probability in place is also higher and higher, and it is also recurrent thing to meet with congestion, and the place more than people is easy for various problems occur.
Demand of the present society to crowd simulation increasingly increases, especially to high emulation, high crowd's diversity, high fidelity, height interaction
Property, the crowd simulation demand of Computationally efficient gradually increases, has compared now the emulation of crowd true considerable.
Virtual reality technology is a kind of emerging digital human machine interface, and virtual reality technology is by the virtual reality first year
Outburst, constantly there is the appearance of new technology and equipment, quickly shortens virtual reality at a distance from our masses.Virtual reality skill
Art constantly penetrates into every field, similarly the fields such as video display, game, education, medical treatment bring experience true to nature and
Efficient study and work efficiency.
With the raising of level of hardware, everybody is to high emulation, high fidelity, the need of the crowd simulation of highly diverse
Ask also higher and higher.Although crowd simulation has had many systems and model, crowd simulation to still have more problem,
The analogue system for such as lacking high emulation high fidelity and highly diverse, if authenticity is not high, lack crowd's diversity the problems such as.
Still cannot meet the needs of people are to high emulation system at present.How to establish one have higher validity and naturally
The analogue system of crowd is still a big problem.
" The uncanny valley " i.e. " terrified paddy " effect, i.e., when artificial class personage reaches with the similarity of true man
When to a certain degree, the mankind reduce the likability of class personage with the increase of similarity instead, or even generate and detest sense, enable
People strikes fear into, as shown in Figure 3.The research announced recently shows to equally exist tactile " terrified paddy " in terms of tactile
Effect, as shown in Figure 4.
Classical " terrified paddy " effect can be equally encountered in order to increase the high validity of crowd simulation in terms of crowd simulation,
Equally the crowd simulation system based on virtual reality can also encounter tactile " terrified paddy " effect, how to avoid or alleviate " probably
Fear paddy " effect is still a big problem to the discomfort that people brings.
Invention content
The present invention is to solve the above-mentioned problems, it is proposed that a kind of based on avoiding the virtual reality crowd of terrified paddy effect from emulating
Method and system, the present invention are effectively reduced and are avoided by avoiding " terrified paddy " effect jointly in terms of visual aspects and tactile
The loss for the discomfort and feeling of immersion that terrified paddy effect is brought to people has better authenticity and telepresenc.
To achieve the goals above, the present invention adopts the following technical scheme that：
The first object of the present invention is to provide a kind of based on the virtual reality crowd's emulation mode for avoiding terrified paddy effect, packet
Include following steps：
Building and barrier model library are established to preserve building and barrier model library；
The sound for the personage and environment that storage acquisition comes, including personage's walking, run and each scene of speaking under generate
Ambient sound under scene residing for sound and personage；
Figure, figure and features, gender, age, physical condition and physical efficiency every terms of information to being collected people count, and
Corresponding person model is set up, and the various information of acquisition is added in person model, generates real person role；
Collect personage possessed by attribute, including the movement speed of people, recover one's legs to restore normal walking most in short-term
Between various true man attribute；
High emulation character is generated, or calls the character in real person's data bank；
For vision terror paddy effect, storage is to the high emulation character virtual portrait that carries out that treated, to true man
Virtual image in virtual reality retains other features in addition to countenance, using overcover to the face of visual human into
Row blocks；
The collision that virtual portrait occurs is detected, when detecting personage's collision, to carrying out the dimness of vision at collision
Processing；
Building and barrier model and high emulation character are combined, to set up comprising including personage
Virtual reality scene, tested using virtual unit, carry out statistics and the detection of indices, and real time data is carried out
Record preserves.
Further, virtual world is entered by virtual reality device, by prior plan such as test to certain building or
Crowd evacuation, the mulitpath in place compare and path planning, public place crowd flowing control virtual portrait are tested.
Further, the optimization in a variety of paths is optimized using dimension particle swarm optimization algorithm is become.
Further, the detailed process in a variety of paths of change dimension particle group optimizing includes：
Population is initialized so that position of each particle of initial time in superspace is random；
Its performance is evaluated by the current location of each particle；
Compare the top performance that the current performance of each individual had so far with it, has so far if current performance is less than it
The top performance crossed, then be assigned a value of current performance by the top performance having so far, and corresponding position is replaced；
The performance of each particle is compared with the performance of global best thunder, if current performance is less than the overall situation most preferably
The performance of global best thunder is then assigned a value of current performance by the performance of Lei Zi, and corresponding position is replaced；
The velocity vector for changing particle, moves to each particle new position, constantly repeats above-mentioned optimization process, and repetition is passed
Return until convergence.
Further, the consistency respective path interstitial content of dimensionality of particle is identical, particle generate solution by starting point to
The path node of terminal indicates, environmental map is divided into grid, and path node is generated or merged according to grid range
Optimal solution is changed, keeps it consistent with particle last moment position dimension.
The second object of the present invention is to provide a kind of based on the virtual reality crowd's analogue system for avoiding terrified paddy effect, packet
It includes：
Building model library module is configured as being stored with all kinds of building models and barrier model；
Person model library module with body difference is configured as storing the person model of various body differences；
Character attribute library module is configured as being stored with comprising attribute possessed by personage, including the movement speed of people, is fallen
It climbs the various true man's attributes for playing the shortest time for restoring normal walking and motion capture and expression capture is carried out to true man
Action and expression data；
Personage's sound and ambient sound acquire library module, are configured as the sound of personage and environment that storage acquisition comes；
Virtual reality scene setup module is configured as choosing building and barrier model in building model library,
Character is selected, it includes building, barrier and the complete scene of people to construct required；
Dimness of vision module is collided, is configured as being detected the collision that virtual portrait occurs, when detecting that personage touches
To carrying out dimness of vision processing at collision when hitting；
Virtual reality device module and system evaluation detection module are configured as building and barrier model and height
Fidelity character combines, and is tested using virtual unit, carries out statistics and the detection of indices, and to real-time
Data carry out record preservation.
Further, the sound for the personage and environment that personage's sound and ambient sound acquisition library module storage acquisition come
Sound, including personage's walking, run and each scene of speaking under ambient sound under scene residing for the sound that generates and personage, packet
The ambient sound that the rustle of leaves in the wind is included, tactile terror paddy effect is alleviated by pinpoint sound.
Further, the collision dimness of vision module collision that virtual portrait occurs is detected, when detecting people
Object collide when, including human body collide other people, collide building or collide barrier all collision, at collision into
The processing of the row dimness of vision.
Further, the character attribute library module, including with high emulation character library module, wanted according to system
It asks using the high emulation character inside real person's data bank, or passes through person model with body difference and personage
Attribute is combined, and reaches the construction to high artificial figure role.
Further, the system evaluation detection module, to crowd's track route, collision time in crowd simulation whole process
Number, number of falls, injures and deaths number, crowd evacuation time, building barrier carry out evaluation and test detection by collision position and number,
And it is showed in a manner of intuitively showing for reference.
The operation principle of the present invention is that：In terms of vision terror paddy, due to present technical deficiency, can not really by
Moulding for virtual portrait is just the same with true man, therefore the present invention blocks the face of visual human with overcover, in this way
It cannot see the facial expression of virtual portrait, can also be reduced or avoided because visual human is like people but is not enough allowed as people
People detests.
Terrified paddy in terms of tactile, introduces and is blocked at sound module and collision, and it is because of virtual human hair to introduce sound
When raw collision, collision can be allowed with good grounds, know the collision of body somewhere generation by the sense of hearing by sound.To the screening at collision
Block material is that the home position to collide is known by vision, and the sense of hearing and vision are provided to the position for assisting determining that tactile occurs
Set, by both the sense of hearing and vision with tactile cooperation i.e. can avoid allowing people when perceiving touching because do not have according to due to it is alarmed and
It is at a loss.
Compared with prior art, beneficial effects of the present invention are：
The present invention can effectively reduce and avoid vision and tactile " terrified paddy " effect.It, will using virtual reality technology
True man bring into the system, and effectively reduce and avoid discomfort and feeling of immersion that vision and tactile " terrified paddy " are brought to people
Loss, therefore make the natural performance of crowd simulation more someone, more people can be allowed on the spot in person, there is higher authenticity.
The present invention can effectively raise crowd's diversity of crowd simulation.Pass through the group of person model and character attribute
It closes, can combine and create a variety of different roles.Moreover, have real person's data bank that can directly be mapped using true man, it should
Mapping includes each attribute of true man.The system is controlled further through true man simultaneously, in terms of this respect, similarly increases crowd simulation
Crowd's diversity.
The present invention use virtual reality technology, make one on the spot in person, and can in the environment and environment of surrounding people and
Object is interacted and is interacted, therefore has higher interactivity.
Description of the drawings
The accompanying drawings which form a part of this application are used for providing further understanding of the present application, and the application's shows
Meaning property embodiment and its explanation do not constitute the improper restriction to the application for explaining the application.
Fig. 1 is schematic structural view of the invention；
Fig. 2 is the flow chart of the present invention；
Fig. 3 is vision terror paddy relational graph；
Fig. 4 is tactile terror paddy relational graph；
Fig. 5 blocks for colliding part；
Fig. 6 is that virtual portrait face blocks；
Specific implementation mode：
The invention will be further described with embodiment below in conjunction with the accompanying drawings.
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 implementation mode, 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 singulative
It is also 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 combination thereof.
In the present invention, term for example "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", " side ",
The orientation or positional relationship of the instructions such as "bottom" is to be based on the orientation or positional relationship shown in the drawings, only to facilitate describing this hair
Bright each component or component structure relationship and the relative of determination, not refer in particular to either component or element in the present invention, cannot understand
For limitation of the present invention.
In the present invention, term such as " affixed ", " connected ", " connection " shall be understood in a broad sense, and indicate may be a fixed connection,
Can also be to be integrally connected or be detachably connected；It can be directly connected, it can also be indirectly connected through an intermediary.For
The related scientific research of this field or technical staff can determine the concrete meaning of above-mentioned term in the present invention as the case may be,
It is not considered as limiting the invention.
Classical " terrified paddy " effect will necessarily be encountered in order to increase the high validity of crowd simulation in terms of crowd simulation,
Equally the crowd simulation system based on virtual reality can also encounter tactile " terrified paddy " effect, i.e., in the people based on virtual reality
In terms of group's analogue system, the validity in order to improve crowd simulation will encounter " terrified paddy " effect in vision and tactile, be
It avoids or alleviates to " the terrified paddy " brought in people's vision and tactile under the premise of increasing the validity of crowd simulation system
The discomfort of effect, the present invention propose a kind of based on the crowd simulation method and system for avoiding The uncanny valley effects.
The present invention provides a kind of based on the virtual reality crowd's emulation mode for avoiding The uncanny valley effects
And system, including avoid " terrified paddy " effect of visual aspects and " terrified paddy " effect in terms of tactile.
In terms of avoiding vision " terrified paddy ", virtual portrait library module is added, in terms of avoiding tactile " terrified paddy ", is added
Personage's sound and ambient sound acquisition library module and collision dimness of vision module.
The present invention proposes kind based on the virtual reality crowd emulation mode for avoiding The uncanny valley effects and is
System, which includes virtual reality profile module, building model library module, virtual portrait library module, personage's sound and environment
Sound collection library module, has high emulation character library module, real person's data bank mould at collision dimness of vision module
Block, the person model module with body difference, character attribute library module, tester's module, virtual reality device module with
And system evaluation detection module.
Building and barrier model library module：Including a large amount of building model and barrier model etc..
Personage's sound and ambient sound acquire library module：For storing the sound of personage and environment that acquisition comes.
Collide dimness of vision module：The collision that virtual portrait occurs is detected, and is crashed when detecting personage's collision
It hits place and carries out dimness of vision processing.
Real person's library module：Including in a large amount of real world real person data.
Person model library module with body difference：Include the person model of various body differences, including high, short, fat,
The features such as thin, gender.
Character attribute library module include personage possessed by attribute, including the movement speed of people, recover one's legs to restore just
Various true man's attributes such as the shortest time often walked and action and the expression number that true man are carried out with motion capture and expression capture
According to.
With high emulation character library module：Including construction complete is virtual and complete with high emulation
Role.
Virtual portrait library module：For vision " terrified paddy " effect, after storage handles high emulation character
Virtual portrait.
Virtual reality device module：Including a large amount of virtual reality devices, for example virtual reality head is aobvious, operation handle, virtual
Real mobile device etc..
Virtual reality profile module：The virtual scene for including construction complete, including building, personage etc..
Tester's module：Including the personnel tested.
System evaluation detection module：Include evaluation and test and the testing mechanism of the system.
Embodiment 1：
As shown in Figure 1, a kind of crowd simulation system based on virtual reality, the system include virtual reality profile module,
Building model library module, virtual portrait library module, personage's sound and ambient sound acquisition library module, collision dimness of vision mould
Block, with high emulation character library module, real person's library module, the person model module with body difference,
Character attribute library module, tester's module, virtual reality device module and system evaluation detection module.
Building and barrier model library module：Including a large amount of building model and barrier model etc..Building and
It further includes various facilities in building that building itself is not limited solely in barrier model library, which is a complete building,
Deng, mould building model in the block can by manually modeling, physical scan etc. carries out abundant addition, can be real world
In it is already existing can also be any building model for envisioning and, barrier model etc. passes through abundant building mould
Type library meets required various physical environments in crowd simulation.
Personage's sound and ambient sound acquire library module：For storing the sound of personage and environment that acquisition comes, including people
The ambient sound that object is walked, run, speaking etc. under scene residing for the sound generated under scenes and personage, including the rustle of leaves in the wind
Ambient sound.
Collide dimness of vision module：The collision that virtual portrait occurs is detected, when detecting personage's collision, such as
Human body such as collides other people, collides building, collides barrier at all collisions, to being carried out at the dimness of vision at collision
Reason, such as when the shoulder of personage collides barrier, when personage sees to the shoulder of oneself, it is found that the shoulder of oneself
On be covered with one layer of overcover, make the vision of oneself fog not seeing the shoulder of oneself, as shown in figure 5, but being not limited to
Shape is illustrated, shoulder is also not limited solely to.
Real person's library module：Including in a large amount of real world real person data.Real person's data bank
In data all from the true mankind, be the statistics to the various information of real human, including gender, the age, height,
Weight, physical condition etc. can carry out finer personal information receipts in the case where respecting collected wish in person and privacy
Collection.All acquisition information process carry out after all obtaining my collected agreement.The effect of the module is in order to obtain more
True crowd's information is constructed closest to true man with reaching the maximumlly mapping to real person in virtual environment
Virtual role, not only also have other careful personal information such as fitness including shape.
Person model library module with body difference：Include the person model of various body differences, including high, short, fat,
The features such as thin, gender.Person model in person model library with body difference can by manually modeling, the structures such as scanning device
The person model built is filled, which should include a large amount of manikin, and value volume and range of product is enough to reach abundant
The effect of crowd.
Character attribute library module：Including attribute possessed by personage, including the movement speed of people, recover one's legs to restoring just
The attribute of the various true man such as the shortest time often walked.
With high emulation character library module：Including construction complete is virtual and complete with high emulation
Role.The diversity of the system crowd simulation can be effectively improved with high emulation character library module, which can basis
System requirements can also pass through the personage with body difference using the high emulation character inside real person's data bank
Model library module and character attribute library module are combined, and personage's mould is selected in the person model library module with body difference
Type selects character attribute in character attribute library module, and person model and character attribute is reasonably combined, to reach
To the construction of high artificial figure role.The role that two module structures go out belongs to artificial combination, reaches the more of crowd by combining
Sample, and the role in real person's data bank is then the mapping to the people in real world.
Virtual portrait library module is to be directed to vision " terrified paddy " effect, after storage handles high emulation character
Virtual portrait high emulation character is gone at " terrified paddy " in order to avoid the appearance of vision " terrified paddy " effect
Reason, the i.e. virtual image to true man in virtual reality retain other features in addition to countenance, such as height is fat or thin, warp
The feature of the action after motion capture etc. true man is crossed, and the facial shelter of visual human is covered, such as Fig. 6 institutes
Show, but is not limited to diagram shape.Virtual portrait can be made to possess the true man such as the limbs of true man, action feature and to people in this way
Facial expression blocked, allow people visual human is not generated detest sense.Effectively avoid " terrified paddy " effect.
Virtual reality device module includes a large amount of wearable virtual reality devices, for example virtual reality head is aobvious, manipulator
Handle, virtual reality mobile device etc..
Virtual reality profile module：The virtual scene for including construction complete, including building, personage etc..Virtually
The effect of real profile module is to choose the models such as building and barrier in building and barrier model library, having
Have in high emulation character library and select character, construct the required scene of system, which is one complete
Scene, including building, barrier and people etc..
Tester's module：Including the personnel tested.Tester's module is exactly to be surveyed comprising the personnel tested
Examination personnel using the truthful data of itself can be mapped to real person's data bank thereby using the real information of oneself, or
Person uses the role that system is distributed.Tester is by virtual reality device, including virtual reality head is aobvious, both feet motion controller
Equal virtual reality devices connect the system, to allow tester to manipulate oneself role in virtual reality world,
It freely operates in the scene of virtual reality, and is interacted with all in the scene in virtual reality.Then tester can
To be tested according to testing scheme all set in advance.Tester can much can also be seldom, due to tested person people
The limitation of member's condition, tester can select the personnel only currently tested in entire scene, in not more survey
In the case of examination personnel, system can be selected to add intelligent dummy human, other visual humans in control scene are simulated by system, or
Person does not have tester to participate, and the visual human of system control is only included in virtual scene, if nobody participates in it certainly
In cannot play the maximum effect of the present invention.
System evaluation detection module：Include the evaluation and test testing mechanism of the system.System evaluation detection module is tester
After carrying out a series of crowd simulation operation, system on human group emulates crowd's track route, collision frequency, tumble in whole process
Number, injures and deaths number, crowd evacuation time, building barrier are examined by evaluation and test a series of problems, such as colliding position and number
It surveys, and shows for reference.
The system is based on computer system, can be developed by engines such as unt iy3d, is set by virtual reality head is aobvious
The equipment such as standby, double-legged motion controller are realized.
Fig. 2 is the flow chart of the present invention, is further described in conjunction with the flow chart.
Step 1：Initially set up a building and barrier model library, which is building and barrier model library,
Multi-modeling tool can be used, the present embodiment is using the modeling function of maya softwares to building by artificial modeling pattern
It is manually modeled, modeling personnel can be according to drawing or to modeling after on-the-spot investigation.Or it is swept using special mapping
It retouches modeling tool and generation model is scanned to building.Later by the model to complete by various modes save as obj,
The formats such as fbx are imported into building and barrier model library, to use after facilitating.
Step 2：It establishes personage's sound and ambient sound acquisition library is used for storing the sound of personage and environment that acquisition comes, packet
Include the ambient sound that personage is walked, run, speaking etc. under scene residing for the sound generated under scenes and personage, including wind grass
It is dynamic to wait ambient sounds.
Step 3：Establish real person's data bank, the module need carry out questionnaire survey work, the range of investigation it is more wide more
Good, the higher the better for crowd's diversity of investigation.After the agreement for obtaining collected people, to being collected figure, figure and features, the property of people
Not, the every terms of information such as age, physical condition, physical efficiency are counted, and set up corresponding person model, and by acquisition
Various information is added in person model, generates real person role, with use after facilitating.
Step 4：The person model library with body difference is established, the identical mode of step 1 can be used and modeled, equally
Personage is modeled using the modeling function of maya softwares, or generation mould is scanned to true man using scanning modeling tool
Type.The model to complete by various modes the formats such as obj, fbx are saved as later to imported into real person's data bank,
The person model of various body differences, including the features such as high, short, fat, thin, gender are collected, to use after facilitating.
Step 5：Establish character attribute library, collect attribute possessed by personage, including the movement speed of people, recover one's legs to
Restore the attribute of the various true man such as the shortest time of normal walking, and each attribute is arranged and is preserved.
Step 6：Establishing has high emulation character library, which is used for composite person's attribute library module and has shape
The person model library module of body difference to generate high emulation character, or directly invokes real person's data bank mould
Block calls the character in real person's data bank, with use after facilitating.
Step 7：It establishes virtual portrait library and is directed to vision " terrified paddy " effect, store to high emulation character
Virtual portrait after reason removes high emulation character " terrified in order to avoid the appearance of vision " terrified paddy " effect
Paddy " is handled, i.e., the virtual image to true man in virtual reality retains other features in addition to countenance, such as high short and stout
The feature of action thin, after motion capture etc. true man, and the facial sunbonnet of visual human is covered.
Step 8：It establishes the collision that virtual portrait occurs of collision dimness of vision module to be detected, when detecting that personage touches
When hitting, such as human body such as collides other people, collides building, collides barrier at all collisions, to being regarded at collision
Fuzzy Processing is felt, such as when the shoulder of personage collides barrier, when personage sees to the shoulder of oneself, it is found that from
It is covered with one layer of fog on oneself shoulder, is that the vision of oneself fogs not seeing the shoulder of oneself
Step 9：Virtual reality scene is established, building and barrier model library module are called and there is high emulation personage
Role's library module combines building and barrier model and high emulation character, includes personage to set up
Virtual reality scene inside.
Step 10：Tester's module is established, which need to only organize the personnel tested, and is ready to for them
The equipment such as virtual reality device, including aobvious, the double-legged motion controller of virtual reality head, are tested with facilitating.
Step 11：System evaluation detection module is established, which is used for running whole system the system for carrying out indices
Meter and detection, and carry out record preservation to real time data, with use after facilitating.
Operation is followed the steps below based on the system and method：
Tester selects the scene needed, and is oneself selection virtual role, can use the mapping of itself, can also
The role built using system.
Tester selects visual human's quantity present in artificial scene, and the virtual of only tester's control may be selected
People, or according to the visual human for requiring to add enough system control, it can be only comprising tester's control in the system
Visual human can also include in the visual human of tester's control and the visual human of system control or artificial scene simultaneously
Only include the visual human of system control.
Tester enters virtual world by virtual reality device, by prior plan such as test to certain building or field
Crowd evacuation, mulitpath compares and path planning, public place crowd flowing etc. control virtual portrait test, wrap
Include the test of path planning etc..
System statistics simultaneously store the data generated during entire crowd simulation, and knot is showed in a manner of intuitively showing
Fruit is for reference.
For in terms of path optimization, a variety of method for optimizing route can be used, change dimension particle swarm optimization algorithm can be used.
The rendering effect carried in unity3d can be used for the system in terms of rendering, other renderings can also be used
Algorithm such as drift net lattice model real-time rendering algorithms are realized.
Embodiment 2：
The present invention also provides a kind of crowd simulation databases.After the system is operated, the building of the system and
Barrier model library, personage's sound and ambient sound acquisition library, real person's data bank, the person model with body difference
Library, there are the modules such as high emulation character library, virtual reality scene, system evaluation can all collect largely at character attribute library
The data and information about crowd simulation, and with the growth of system operation time, the database of the system can become non-
It is often abundant and powerful, to provide abundant database for later crowd simulation.
The foregoing is merely the preferred embodiments of the application, are not intended to limit this application, for the skill of this field
For art personnel, the application can have various modifications and variations.Within the spirit and principles of this application, any made by repair
Change, equivalent replacement, improvement etc., should be included within the protection domain of the application.
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. it is a kind of based on the virtual reality crowd's emulation mode for avoiding terrified paddy effect, it is characterized in that：Include the following steps：
Building and barrier model library are established to preserve building and barrier model library；
The sound for the personage and environment that storage acquisition comes, including personage's walking, run and each scene of speaking under the sound that generates,
And the ambient sound under scene residing for personage；
Figure, figure and features, gender, age, physical condition and physical efficiency every terms of information to being collected people count, and establish
Corresponding person model is played, and the various information of acquisition is added in person model, generates real person role；
Collect personage possessed by attribute, including the movement speed of people, recover one's legs to restore normal walking shortest time it is each
The attribute of kind true man；
High emulation character is generated, or calls the character in real person's data bank；
For vision terror paddy effect, storage is to the high emulation character virtual portrait that carries out that treated, to true man in void
Virtual image in quasi- reality retains other features in addition to countenance, is hidden to the face of visual human using overcover
Gear；
The collision that virtual portrait occurs is detected, when detecting personage's collision, to carrying out dimness of vision processing at collision；
Building and barrier model and high emulation character are combined, to set up comprising the void including personage
Quasi- reality scene, is tested using virtual unit, carries out statistics and the detection of indices, and record to real time data
It preserves.
2. it is as described in claim 1 a kind of based on the virtual reality crowd's emulation mode for avoiding terrified paddy effect, it is characterized in that：
Enter virtual world by virtual reality device, by prior plan such as test to the crowd evacuation of certain building or place, more
Paths compare and path planning, public place crowd flowing control virtual portrait are tested.
3. it is as described in claim 1 a kind of based on the virtual reality crowd's emulation mode for avoiding terrified paddy effect, it is characterized in that：
The optimization in a variety of paths is optimized using dimension particle swarm optimization algorithm is become.
4. it is as claimed in claim 3 a kind of based on the virtual reality crowd's emulation mode for avoiding terrified paddy effect, it is characterized in that：
The detailed process for becoming dimension particle group optimizing a variety of paths includes：
Population is initialized so that position of each particle of initial time in superspace is random；
Its performance is evaluated by the current location of each particle；
Compare the top performance that the current performance of each individual had so far with it, if current performance is less than what it had so far
Top performance, then be assigned a value of current performance by the top performance having so far, and corresponding position is replaced；
The performance of each particle is compared with the performance of global best thunder, if current performance is less than global best thunder
Performance, then the performance of global best thunder is assigned a value of current performance, corresponding position is replaced；
The velocity vector for changing particle, moves to each particle new position, constantly repeats above-mentioned optimization process, and it is straight to repeat recurrence
To convergence.
5. it is as described in claim 1 a kind of based on the virtual reality crowd's emulation mode for avoiding terrified paddy effect, it is characterized in that：
The consistency respective path interstitial content of dimensionality of particle it is identical, particle generate solution by origin-to-destination path node indicate
It forms, environmental map is divided into grid, generated according to grid range or merge path node to change optimal solution, keep it same
Particle last moment position dimension is consistent.
6. it is a kind of based on the virtual reality crowd's analogue system for avoiding terrified paddy effect, it is characterized in that：Including：
Building model library module is configured as being stored with all kinds of building models and barrier model；
Person model library module with body difference is configured as storing the person model of various body differences；
Character attribute library module is configured as being stored with and be climbed comprising attribute possessed by personage, including the movement speed of people, tumble
It plays the various true man's attributes for the shortest time for restoring normal walking and true man's progress motion capture and expression capture is moved
Work and expression data；
Personage's sound and ambient sound acquire library module, are configured as the sound of personage and environment that storage acquisition comes；
Virtual reality scene setup module is configured as choosing building and barrier model in building model library, selection
Character, it includes building, barrier and the complete scene of people to construct required；
Dimness of vision module is collided, is configured as being detected the collision that virtual portrait occurs, when detecting personage's collision
To carrying out dimness of vision processing at collision；
Virtual reality device module and system evaluation detection module are configured as building and barrier model and high emulation
Degree character combines, and is tested using virtual unit, carries out statistics and the detection of indices, and to real time data
Carry out record preservation.
7. it is as claimed in claim 6 a kind of based on the virtual reality crowd's analogue system for avoiding terrified paddy effect, it is characterized in that：
The sound for the personage and environment that personage's sound and ambient sound acquisition library module storage acquisition come, including personage walk, run
The ambient sound for walking and speaking under scene residing for the sound generated under each scene and personage, including the ambient sound that the rustle of leaves in the wind,
Alleviate tactile terror paddy effect by pinpoint sound.
8. it is as claimed in claim 6 a kind of based on the virtual reality crowd's analogue system for avoiding terrified paddy effect, it is characterized in that：
The collision that virtual portrait occurs for the collision dimness of vision module is detected, when detecting personage's collision, including human body
Other people are collided, building is collided or collides all collisions of barrier, to carrying out dimness of vision processing at collision.
9. it is as claimed in claim 6 a kind of based on the virtual reality crowd's analogue system for avoiding terrified paddy effect, it is characterized in that：
The character attribute library module, including with high emulation character library module, provided using real person according to system requirements
Expect the high emulation character inside library, or be combined by person model with body difference and character attribute, is reached
To the construction to high artificial figure role.
10. as claimed in claim 6 a kind of based on the virtual reality crowd's analogue system for avoiding terrified paddy effect, feature
It is：The system evaluation detection module, to crowd's track route, collision frequency, number of falls, wound in crowd simulation whole process
Die number, crowd evacuation time, building barrier carry out evaluation and test detection by position and number is collided, and intuitively to show
Mode shows for reference.
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