CN106530400A - Interactive virtual campus roaming system based on intelligent wearing device - Google Patents

Interactive virtual campus roaming system based on intelligent wearing device Download PDF

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Publication number
CN106530400A
CN106530400A CN201610919851.5A CN201610919851A CN106530400A CN 106530400 A CN106530400 A CN 106530400A CN 201610919851 A CN201610919851 A CN 201610919851A CN 106530400 A CN106530400 A CN 106530400A
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window
model
campus
module
modeling
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朱惠娟
丛玉华
张皓名
宁泽西
张庆
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Nanjing University of Information Science and Technology
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Nanjing University of Information Science and Technology
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    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T19/00Manipulating 3D models or images for computer graphics
    • G06T19/006Mixed reality

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  • General Engineering & Computer Science (AREA)
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Abstract

The invention discloses an interactive virtual campus roaming system based on an intelligent wearing device. The system comprises a data acquisition module, a three-dimensional modeling module, a model implantation and interaction module and a wearing device connection module. The data acquisition module draws the integrated campus framework according to a construction CAD. The material of the physical appearance is acquired through photographing, and can be used for mapping. The three-dimensional modeling module completes modeling, mapping and rendering through modeling software. The model implantation and interaction module leads all built models into a three-bit video system. The wearing device connection module completes connection of a helmet display device interface, so as to realize the interaction of a helmet and a handle. According to the invention, the integrated campus framework is drawn according to the construction CAD; the building appearance of each entity is photographed by a camera to acquire the material of the physical appearance; on the premise of small model value, the model accuracy and the model visual effect are ensured; and the immersion of a user is improved.

Description

A kind of interactive virtual Campus Navigation System based on Intelligent worn device
Technical field
The invention belongs to the field operation to threedimensional model or image for computer graphics, and in particular to using man-machine mutual Dynamic technology realizes a kind of interactive virtual Campus Navigation System based on Intelligent worn device.
Background technology
Virtual reality is a kind of computer simulation system that can be created with the experiencing virtual world, and it is generated using computer A kind of simulated environment, is interactively Three-Dimensional Dynamic what comes into a driver's and the system emulation of entity behavior of a kind of Multi-source Information Fusion, makes User is immersed in the environment.Virtual reality technology is emulation technology and computer graphics, human-machine interface technology, multimedia skill The set of the multiple technologies such as art, sensing technology, network technology, is a challenging interleaving techniques front subject and research Field.2014, Facebook purchased virtual reality device manufacturer Oculus VR with 2,000,000,000 dollars, and having caused includes paddy Song and Microsoft furnish a huge amount of money for invest the upsurge of virtual reality industry in interior scientific and technological giant.Up to now, domestic and international many IT Relevant enterprise is actively put in the research and development of virtual reality device and application, is invested with 5,200,000,000 yuans including Alibaba Venture company Magic Leap, Wanda's movie theatre announce that will release 100 VR in national movie theatre within following 2 to three years experiences areas;It is soft Silver is purchasing ARM with 32,000,000,000 U.S. dollars, and June discloses the brand-new framework for the VR market developments;Samsung furnishes a huge amount of money for get The exclusive broadcasting rights of VR of the Rio Olympic Games;Google has issued platform Daydream for VR equipment etc..Virtual reality technology Quickly grow in recent years, may apply to the fields such as national defence, education, video display, game, it is contemplated that the following need to virtual reality Asking can be more and more, or even can change the modes such as the life communication of the mankind.
In recent years, the research both at home and abroad to virtual reality is more and more, has based on hardware view, such as helmet equipment, with HTC VIVE, SONY VR, Oculus VR are led for three big industries, have in addition SumSang Gear VR, it is happy regarding etc. mobile phone box In the trend that the support of mobile terminal, VR hardware linearly rise.Meanwhile, VR is also subject to IT industries and wind in the research and development of content That what is thrown pays close attention to, and including including VR hardware vendors, many enterprises are one after another into the research and development field of VR contents, in a word, VR markets With huge potentiality.
Virtual reality has had many examples in the space representation projects such as real estate demonstration, virtual campus.It is existing many University of institute develops the Virtual Campus System of respective school, such as, Xi'an Communications University, Harbin Institute of Technology, Changzhou engineering Vocationl Technical College etc..Although the effect that the Virtual Campus System of these schools is realized is similar on the whole, in concrete selection Still have than larger difference in technology and development platform.Some employing panoramic techniques realize virtual campus, by shooting on the spot Obtain photo, using software split photo for panorama sketch mode, have by importing campus model in VR-Platform Mode builds.
Found by studying, virtual campus mainly have dividing for 2D and 3D display effects, 2D mainly makes real scape and shines separately Jia 360 The mode of panoramic demonstration;3D is mainly first modeled, then model is imported to do interaction in the middle of corresponding engine.In virtual campus Problem present in three-dimensional display mainly has at 2 points, and first is that campus model value typically can be very big, causes the operation of virtual campus Bag is very big, just has very high requirement to computer hardware during such system operation, easily causes than more serious Caton phenomenon, affects The experience of user;Second, requirement more and more higher of the user to experience, keyboard mutuality can not meet the needs of user how The feeling of immersion of virtual interaction system is improved, this is the problem that need to improve.
Head mount display device is applied in the display systems of campus, precedent is there is no, this is maximum innovative point of the invention, is led to The application of the helmet is crossed, the difficult point of virtual system feeling of immersion raising can be preferably solved.
The content of the invention
Present invention solves the technical problem that being that Consumer's Experience declines when model value is very big, and how to improve virtual interacting system The problem of the feeling of immersion of system.
For solving the above problems, the present invention proposes a kind of interactive virtual campus cruise system based on Intelligent worn device System, to improve the feeling of immersion of user, realizes that virtual campus are roamed.
Specific technical scheme is a kind of interactive virtual Campus Navigation System based on Intelligent worn device, including data Acquisition module, three-dimensional modeling module, model implantation and interactive module, wearable device link block, data acquisition module is according to applying Work CAD diagram draws out the general frame in campus, then by carrying out shooting acquisition entity to the entity building profile in campus The material of outward appearance, can carry out pinup picture as material and use;Three-dimensional modeling module completes modeling, pinup picture, wash with watercolours by modeling software Dye;Model is implanted into and is all imported to the above-mentioned model built up in three digital video systems with interactive module;Wearable device connection mode Block completes the connection of head mount display device interface, realizes interacting with the helmet and handle.
Further, above-mentioned modeling is comprised the steps of:
(1) rectangular walling is created based on base map, and the length geological information of body of wall must be gathered according to early stage Data, which is converted into editable polygon after establishment completes cuboid, connection behaviour in side is carried out according to each floor quantity first Make, the window of each layer is divided further according to actual conditions after floor has been divided, if each layer of window is mutually equal Away from decile is then carried out, Connecting quantity is otherwise adjusted, carry out side connection again, form the external contouring in building;
(2) face deletion action is carried out to polygon, if the position is door and window is deleted the face so as to by the door made Window addition is got on, and the position in each face can be adjusted using extrusion, insertion order, and the adjustment of parameters should be according to reality Situation is configured, for various body of wall additives also should add after being fabricated separately up;
(3) components such as window, door are made, plane is created according to the actual size of door and window, then plane is converted into and can be compiled Polygon is collected, and door and window is produced by using side connection, extrusion, deletion, mapping operations;
(4) door and window for completing is added to into relevant position, as most window is identical, is grasped using replicating Make to improve modeling efficiency.
Preferably, carry out overall pinup picture to each independent object during pinup picture as far as possible.
Further, by the way of can be to be launched using UVW during pinup picture, while normal map is made, to reduce the volume of model, The sense of reality of enhancing effect.
Beneficial effects of the present invention:
1, the present invention draws out the general frame in campus, then with camera to each first in modeling according to construction CAD diagram The building profile of individual entity is shot, and is obtained the material of solid appearance, is not very big premise so model value is guaranteed Under, the accuracy for not only having ensured model but also the visual effect for having taken into account model.
2, consider that the window of many buildings is same or like in the engineering of modeling, so in reality Each window should not individually being created in modeling process, and should carrying out duplication operation after a window is created, this method is quick Simply, the efficiency of modeling can be effectively improved.
Description of the drawings
Fig. 1 is the whole development schematic flow sheet of Virtual Campus Cruise System;
Fig. 2 is the module diagram of Virtual Campus Cruise System;
Fig. 3 is the committed step of Virtual Campus Cruise System exploitation;
Fig. 4 is the schematic flow sheet of basic data acquisition;
Fig. 5 is the idiographic flow schematic diagram based on True Data drawing three-dimensional virtual campus model;
Fig. 6 is the development process schematic diagram that virtual three-dimensional model is interacted in research/development platform;
Fig. 7 is the main operational steps that user uses software;
Fig. 8 is the actual Freehandhand-drawing schematic diagram that user operates software using the wearing helmet and handle.
Specific embodiment
In conjunction with accompanying drawing, specific embodiments of the present invention are further described in detail.
The module of roaming system of the present invention is constituted as shown in Fig. 2 including data acquisition module, three-dimensional modeling module, model Implantation and interactive module, wearable device link block.Data acquisition module is the overall frame for drawing out campus according to construction CAD diagram Frame, will pay special attention to the acquisition to detailed information here, because on CAD diagram be overall profile figure, therefore with tool ruler pair Detailed information is obtained, and such as doorframe etc. is measured, so as to more accurate in modeling, then with camera to each entity Building profile is shot, and is obtained the material of solid appearance, can be carried out pinup picture as material and use, must carry out here Repeatedly shoot, particularly at details, so pinup picture can be refined, effect is more life-like;Three-dimensional modeling module is soft in 3Dmax Model in part, pinup picture is rendered, and this step is mostly important, should be noted at 3 points:1. the face number for modeling will be simplified as far as possible, being not required to All delete in the face wanted;2. for some complicated models, can be to stick on figure using reduced model by the way of, i.e., first use multiaspect number Model carry out pinup picture, the design sketch after rendering is posted on the model after simplifying, such effect is identical with multiaspect exponential model, but It is to be simplified due to actual model face number, it is possible to reduce program bag, improves the speed of service;3., during pinup picture, camera be clapped The photo taken the photograph carries out appropriate process, improves reduction effect true to nature as far as possible;Model is implanted into and interactive module, is the mould that will be built up Type is all imported in Unity3D, realizes interaction using c# and js, the problem that pinup picture is lost occurs here, needs to enter again The appropriate stick picture disposing of row, simultaneously as in Unity3D, lighting rendering ability does not have strong in 3Dmax, so building in 3Dmax This point will be considered during mould, reduce the use to light, in order to avoid go wrong after importing.In Unity3D, specification of trying one's best generation Code, so that the later stage changes;Wearable device link block, plays the function of the interface of connection head mount display device, realizes and the helmet With the interaction of handle.
Fig. 1 show the whole development schematic flow sheet of Virtual Campus Cruise System, comprises the following steps that:
A1, gathers basic data information by campus CAD diagram.
The data message on basis is obtained by CAD diagram, including the total floor space in campus, green coverage, basketball court and motion Scene product, basic path area and area information.Area information includes the distance between each building, the mark in every building, The length and width height in every building etc..Some shortage of data, need the satellite map and the actual data for measuring with reference to Google.These are basic Data be after modeling prepare.
A2, by shooting the outward appearance finishing material of campus entity, obtains pinup picture material.
Taken pictures in campus many places with camera, the alien invasion of such as teaching building, the plastic cement race track ground of sports ground, road Concrete floor or tile floor on road etc., it is therefore an objective to the pinup picture material after being modeled.Need exist for entering captured photo The appropriate modification of row, such as brightness, saturation degree, it is therefore an objective under the conditions of reduction is real, reach more preferable visual effect as far as possible.
A3, by dimensional Modeling Technology, carries out three-dimensional modeling, obtains threedimensional model to campus.
According to the data that first stage is obtained, it is modeled, institute building is overall very regular, but each several part elevation is not One, therefore the modeling to institute building preferably adopts polygon modeling mode.Reduce the face number of model during modeling as far as possible, so as to reduce most The capacity of whole program.After the completion of model, the picture application obtained by second stage is pinup picture, and model is further modified.
Should be noted that in the engineering of modeling:As many windows of institute are same or like, so in reality Each window should not be individually created in modeling process, and should carry out duplication operation after a window is created.This method is quick Simply, the efficiency of modeling can be effectively improved.Specific process is as follows:
(1) create the geological informations such as rectangular walling, the length of body of wall based on base map to be adopted according to early stage The data of collection.Which is converted into editable polygon after establishment completes cuboid.Side connection is carried out according to each floor quantity first Operation, divides to the window of each layer further according to actual conditions after floor has been divided.If each layer of window is phase Just decile can be carried out with equidistant, Connecting quantity will be otherwise adjusted:Contraction, slide block.Just formed after carrying out side connection again Building external contouring.
(2) face deletion action is carried out to polygon:According to actual conditions if the position is door and window by the face delete so as to The door and window made is added up.The position in each face can be adjusted using extrusion, insertion order, the tune of parameters It is whole to be configured according to actual conditions.For various body of wall additives also should add after being fabricated separately up.
(3) components such as window, door are made.Plane is created according to the actual size of door and window, then plane is converted into and can be compiled Polygon is collected, by using side connection, extrusion, is deleted, door and window is produced in the operation such as pinup picture.
(4) door and window for completing is added to into relevant position.As most window is identical, should be using duplication Operate to improve modeling efficiency.
Meanwhile, many models being had in campus, overall pinup picture being carried out to each independent object as far as possible, such as per is taught Learning building or multiple teaching buildings carries out overall pinup picture, can be to be launched using UVW by the way of, it is while make normal map, such The purpose done is to reduce the volume of model, and makes effect truer.
A4, by development platform, is loaded into Three Dimensional Campus model, realizes the interactive function with computer by keyboard operation.
When in 3Dmax, by model pinup picture after the completion of, integrally import in Unity3D softwares, by c# and JS language, Interaction is realized, navigation feature can be set here, route is set, allow user to follow route roaming virtual system, it is also possible to will In campus, each point is set to a sight spot, and user can be freely walked up and down by corresponding button on keyboard.
At this point, it should be noted that due to Unity3D acquiescence be that one side is rendered, in 3Dmax model when it is noted that Adjustment, otherwise can be appreciated that transparent effect.In addition, in order to the helmet can be connected afterwards, it is necessary to using more than 5.0 unity versions, Otherwise do not support VR exploitations and debug.
A5, by wearing the interface of display device, realizes that aobvious by head and controller is to the virtual man-machine interaction work(for showing Energy.
This step, will realize the combination between Intelligent worn device and application program.Firstly the need of installing on computers The SDK of OculusVR, we select to use SDK0.6.0.1, and that computer system is selected is win7.Because current this SDK That what is run on win7 is relatively stable compared with for other operating systems.Remaining is that the helmet is configured, and different model has different chains The method of joint helmet screen.Then, open File->BuildSettings->Playsettings, platform to be developed The Virtual Reality Supported that lower section is found in Other Settings choose.Complete so far, just directly can make Debugged with the helmet, the picture of shown picture and game in the helmet.We have imported Oculus simultaneously in Unity3D here Developer's bag of SDK, preferably debugs the synchronism of video camera and the helmet.
It has to be noted here that win7sp1 systems need to install this system update text of Windows6.1-KB2670838-x64 Part.
The specific embodiment of the present invention builds threedimensional model using architectural drawing, with unity and coherence in writing material to model with reference to Fig. 3 Pinup picture is carried out, carrying out some simple modifications between model can be multiplexed, and the model of place built up is loaded into Unity3D In, use is interacted with programming language.By the SDK for installing OculusVR on computers, with virtual reality wearable device phase Even, export in the helmet picture worn to user.
The specific embodiment of gathered data module of the present invention is gathered by image data first, obtains pinup picture with reference to Fig. 4 Texture map used.Can be taken pictures in campus many places with camera, the alien invasion of such as teaching building, the plastic cement of sports ground run Concrete floor or tile floor on road ground, road etc., it is therefore an objective to the pinup picture material after being modeled.Need exist for combining Reference picture, carries out appropriate modification in PhotoShop to captured photo, such as brightness, saturation degree, so can be Under the conditions of reduction is real, more preferable visual effect is reached as far as possible.
On the other hand, need collection block mold and the data message of independent model to include the total floor space in campus, afforest Area, basketball court and sports ground area, basic path area and area information.Area information include between each building away from From, the mark in every building, the length and width height in every building etc..Some shortage of data, need satellite map and the actual survey with reference to Google The data of amount.These basic data can be prepared for modeling afterwards.These are needed by CAD diagram, and some also need to use Scale is especially measured.
In the present invention, the specific embodiment of three-dimensional modeling module is referred to Fig. 5, first, CAD diagram is imported 3Dmax soft In part, according to master data therein, it is modeled, although institute building is overall very regular, but each several part elevation differs, therefore Modeling to institute building preferably adopts polygon modeling mode.Reduce the face number of model during modeling as far as possible, so as to reduce final program Capacity.After the completion of model, the picture materials that data acquisition module is obtained create Materials Library, carry out pinup picture to model, finally Block mold is carried out rendering output.Should be noted that in the engineering of modeling:As many windows of institute are same or like , so should not individually create each window in actual modeling process, and duplication behaviour should be carried out after a window is created Make.This method is quick and easy, can effectively improve the efficiency of modeling.
In the present invention, specific embodiment reference Fig. 6 of interactive module and the module being connected with wearable device, by what is built up Model is integrally imported in Unity3D softwares, but due to Unity3D acquiescence be that one side is rendered, in 3Dmax model when will Note adjustment, otherwise can be appreciated that transparent effect.If the face of some models goes out active, in addition it is also necessary to be finely adjusted.Then, by c# With JS language, interaction is realized, including navigation feature is arranged, route is set, allow user to follow route roaming virtual system;By campus In each point be set to a sight spot, user can be freely walked up and down by corresponding button on keyboard.Finally by The SDK of OculusVR, realizes the connection with virtual reality wearable device.In order to the helmet can be connected afterwards, it is necessary to using 5.0 with On unity versions, otherwise do not support VR exploitation and debug.
In the present invention, the detailed process that typical user uses is as shown in fig. 7, user opens software, it is necessary first to register Log in, then the pattern to demonstrating is selected, if having wearable device, wearable device pattern can be entered, can so be worn The helmet, is independently roamed by handle in the environment, feeling of immersion is very strong.If no wearable device, it is also possible to select to enter common Roam mode, can carry out self-navigation according to given line under common roam mode, it is also possible to by the WASD keyboards of keyboard, Manual navigation is carried out, independently can selectively be put and be redirected.Self-navigation may be configured as 3 circuits, by user as needed Select.
In the present invention, user uses specific implementation during the system with reference to Fig. 8, and the helmet is connected with computer, user The helmet is had on, operation handle appreciates the virtual campus interactive system presented in the helmet, by the operation of handle, can be with the scene All around walk in scape, by the rotation of head with the movement of the helmet, cause the change at visual angle, can in the picture of the helmet To be reflected in real time.
The present invention is proposed and is used in Virtual Campus Cruise System the Intelligent worn device helmet with reference to handle, will be newest Technology practically with practice, not exclusively virtual campus show in other similar experiment and training systems, real estate System etc., can use for reference such way of thinking.The whole nation school, no matter be that primary school, middle school or university can adopt Such virtual campus pattern, then can facilitate the publicity of school, facilitates the home-confined just understanding campus of people in need.

Claims (4)

1. a kind of interactive virtual Campus Navigation System based on Intelligent worn device, it is characterised in that including data acquisition module Block, three-dimensional modeling module, model implantation and interactive module, wearable device link block, data acquisition module is according to construction CAD diagram The general frame in campus is drawn out, then by carrying out shooting the material for obtaining solid appearance to the entity building profile in campus Matter, can carry out pinup picture as material and use;Three-dimensional modeling module is completed modeling, pinup picture, is rendered by modeling software;Model is planted Enter and all import to the above-mentioned model built up in three digital video systems with interactive module;Wearable device link block completes the helmet The connection of display device interfaces, realizes interacting with the helmet and handle.
2. a kind of interactive virtual Campus Navigation System based on Intelligent worn device according to claim 1, its feature It is that the modeling is comprised the steps of:
(1) create rectangular walling based on base map, the number that the length geological information of body of wall must be gathered according to early stage According to, which is converted into editable polygon after establishment completes cuboid, side attended operation is carried out according to each floor quantity first, The window of each layer is divided further according to actual conditions after having divided floor, entered if each layer of window is identical equidistantly Row decile, otherwise adjusts Connecting quantity, carries out side connection again, forms the external contouring in building;
(2) face deletion action is carried out to polygon, if the position is door and window is deleted the face so that the door and window made is added Add up, the position in each face can be adjusted using extrusion, insertion order, and the adjustment of parameters should be according to actual conditions It is configured, for various body of wall additives also should add after being fabricated separately up;
(3) components such as window, door are made, plane is created according to the actual size of door and window, plane editable is converted into into then many Side shape, produces door and window by using side connection, extrusion, deletion, mapping operations;
(4) door and window for completing is added to into relevant position, as most window is identical, using replicate operation with Improve modeling efficiency.
3. a kind of interactive virtual Campus Navigation System based on Intelligent worn device according to claim 1, its feature Overall pinup picture is carried out to each independent object as far as possible when being pinup picture.
4. a kind of interactive virtual Campus Navigation System based on Intelligent worn device according to claim 3, its feature By the way of can be to be launched using UVW when being pinup picture, while making normal map, to reduce the volume of model, enhancing effect The sense of reality.
CN201610919851.5A 2016-10-21 2016-10-21 Interactive virtual campus roaming system based on intelligent wearing device Pending CN106530400A (en)

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CN107016723A (en) * 2017-04-12 2017-08-04 电子科技大学成都研究院 A kind of virtual 3D campuses scene walkthrough path generating method
CN107329984A (en) * 2017-06-01 2017-11-07 中国农业大学 Agricultural Cultural Heritage analogy method and system based on virtual reality technology
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