CN101527050A - Method for optimizing virtual business scene based on model simplification and multiresolution representation - Google Patents
Method for optimizing virtual business scene based on model simplification and multiresolution representation Download PDFInfo
- Publication number
- CN101527050A CN101527050A CN200810034411A CN200810034411A CN101527050A CN 101527050 A CN101527050 A CN 101527050A CN 200810034411 A CN200810034411 A CN 200810034411A CN 200810034411 A CN200810034411 A CN 200810034411A CN 101527050 A CN101527050 A CN 101527050A
- Authority
- CN
- China
- Prior art keywords
- scene
- model
- user
- virtual
- model simplification
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
The invention relates to a method for optimizing a virtual business scene based on model simplification and multiresolution representation, wherein the model simplification and the multiresolution representation improve the drawing speed by reducing the complicity of the scene, namely reducing the number of polygons required to be processed by a graphic system. The method comprises the following steps: selection of multilayered details; partitioning of the scene, and visibility blanking; the method can provide a vivid, intelligent and distributed three-dimensional visible environment with interaction, can make use of a virtual product to replace a real product, understand customer requirements through an effective interacting means, improve the customer satisfaction, and create higher economic and social values for the society and manufacturers.
Description
Technical field
The present invention relates to method for optimizing virtual business scene, particularly based on the method for optimizing virtual business scene of model simplification and multi-resolution representation.
Background technology
Virtual reality technology is considered to a kind of technical progress the earliest, and it has dissolved in the various sensations of human body, as vision, the sense of hearing, sense of touch etc. by data input and data equipment.
Several years ago, virtual reality begins to apply to ecommerce.It is a kind of application that is based upon on the Japanese retail trade, is in order to satisfy that the consumer who has little room in Tokyo chooses kitchen and various furniture etc. and design.The user can be with them about the imagination substitution Matsushita shop to architectural style, and subsequently, the virtual kitchen tools of their family expenses then are rendered in the computer system.Mercedes-Benz had introduced the virtual car Counterfeit Item, had showed the very high model of technical merit on the IAA auto show of German flange gram in 1997.This Counterfeit Item allows user's hand-screen and freely selects the attributes such as color of object.This virtual display is by Fraunhofer IAO and the common foundation of the De Lucchi of Milanese architectural design regional planning agency, and its aim is the new method that a product introduction is provided for indoor furniture manufacturer.
Virtual Shopping Mall (VSM) as a kind of prototype system, can select to substitute the role of oneself from existing several visual humans when allowing the user to browse in the store.Has realized based on VRML and the shared virtual environment of Java in this virtual store.After the user is connected to server, just can chat with other user, in virtual store, roam.Another VR-Shop as the installation of the online virtual shopping environment of a kind of three-dimensional demonstration, is based on that Blaxxun VRML multi-user technology makes up, and it can provide senior visual interface.Virtual store can make company provide a complete service solution efficiently for their client, and the client can faster, better mode exchange and come into the market to carry out business transaction.Under the subsidy of ATLAS project, the CDSN development in laboratory of the Korea S's information and the university that communicates by letter has gone out a virtual store that three-dimensional is shared, and its fundamental purpose is to design and set up a large-scale network frame engineering for distributed virtual environment.
In addition, the virtual store of the three-dimensional meeting with interactivity is also being set up in more external other website, as the www.cybertown.com of Cyertown, and the www.eluxury.com of Eluxury, the www.fao.com game room of FAOSchwarz, the avatar that allows the user to observe product.
Domestic, existing several companies have been engaged in projects such as energy extraction, Industry Control, garden planning, city management, tourism development, but development is very uneven, particularly also have huge breach can't adapt to domestic demand for development in education, culture, commerce and trade field.
Summary of the invention
Purpose of the present invention is exactly the method for optimizing virtual business scene based on model simplification and multi-resolution representation that a kind of true to nature, intelligentized, distributed three-dimensional visible environment with interaction is provided in order to overcome the defective that above-mentioned prior art exists.
Purpose of the present invention can be achieved through the following technical solutions: based on the method for optimizing virtual business scene of model simplification and multi-resolution representation, it is characterized in that, described model simplification and multi-resolution representation are the complexity by the reduction scene, promptly reduce the polygon number that graphics system need handle and improve render speed, this method may further comprise the steps:
(1) multi-level details is selected
Described multi-level details is selected, and is each object and sets up a plurality of similar models, and different models are described different to the details of object, and accurate more to the description of object details, model is also complicated more; According to object factor such as shared area size and user's viewpoint on screen,, thereby reduce the polygon number that needs demonstration for each object is selected different detail model;
(2) world subdivision
The scene of a complexity can be divided into a plurality of scenes, and is visible between each scene, invisible or invisible fully, and system just can reduce the polygon number that need show at any one time effectively, thereby reduced scene complexity effectively;
(3) visible blanking
Described visible blanking and user's viewpoint is in close relations, system is the current scene that can " see " of explicit user only, when the user only can see the seldom part of scene,, thereby significantly reduced the polygon number that needs demonstration because system only shows corresponding scene.
Described multi-level details is selected not only to can be used for the enclosure space model, also can be used for the open space model.
Described world subdivision is only effective to enclosure space, and only relevant with user's scene location of living in.
Described step (1), step (2), step (3) order can be changed arbitrarily.
Compared with prior art, the distributed three-dimensional visible environment that the present invention can provide is true to nature, intelligentized, have interaction, can utilize virtual product to substitute actual products, understand customer demand by effective interactive means, improve customer satisfaction, for society, be higher economy and the social value of manufacturer's creation.
Embodiment
Virtual Reality Modeling Language (VRML) be describe scene in the virtual environment one in standard, utilize it can on Internet, set up the interactive three-dimensional multimedium virtual world.And BSContact (http://www.bitmanagement.com) is present most popular free VRML browser.Bitmanagement SDK provides powerful expanding node.Therefore this project adopts Bitmanagement SDK to make up the online platform of online real-time interactive, customizable, intelligent virtual business.The contents are as follows:
(1) expanding node that provides based on Bitmanagement SDK, structure carries out following research:
The real-time rendering algorithm of a, large-scale virtual exhibition scene (exhibition room, exhibition booth, showpiece);
The mass data real-time Transmission algorithm of b, large-scale virtual exhibition scene;
The collaborative design environment of c, interactive virtual product;
D, virtual product evaluating system;
The stereo display of e, hyperchannel large-scale virtual scene;
F, customizable from organizing museum.
(2) expanding node to Bitmanagement SDK carries out following expansion again:
A, based on the behavioral animation modeling of the intelligent virtual incarnation (virtual shopping guide, exhibitioner, client) of AIML;
B, show based on 360 ° of panoramas of real exhibition room, museum and the product of picture and producer thereof.
(3) organic integration of virtual exhibition system and exhibition intelligent management system and ecommerce
A, based on the virtual product intelligent retrieval of data mining;
B, virtual merchant web, online advertisement;
C, intelligence are ordered exhibition, exhibition position management;
D, the commercial pairing of intelligence, commercial affairs are brought together, business meeting and virtual reality project are accepted.
For Computer Processing, this two aspect of the sense of reality and authenticity conditions each other.The raising of sense of reality degree is often with the cost that is reduced to of the fact.Low more as sense of reality degree, the polygon figurate number that constitutes object is few more, and then the process of Chu Liing is just short more, and the fact is high more; And that scene is described is careful more, and complicacy is high more, and people are just satisfied more, but the fact is also just poor more.In order to improve the quality that generates image as much as possible under the prerequisite of the real-time formation speed that guarantees figure, unremitting effort is being done always by whole computer graphical educational circles aspect the Real-time and Dynamic graphic presentation.The method that has been suggested at present mainly can be divided into several big classes:
(1) adopts means parallel or that distribute: need higher cost, but also involve the problem on the Computer Systems Organization of concrete use, therefore popularize not too easily.
(2) based on the drafting (Image Based Rendering) of image: require in the process that changes viewpoint, it is motionless that scene keeps.Accurately difference goes out details such as Gao Guang.If will obtain the higher figure of quality, also need with a large amount of internal memories as much as possible imaged in advance.
(3) model simplification and multi-resolution representation (Multiresolution Modeling): compare with top two methods, the method has short pretreatment time, needs less memory headroom and can be applicable to dynamic scene.
Based on the advantage of above-mentioned (3) kind method, we adopt this method to carry out scene optimization.By reducing the complexity of scene, promptly reduce the polygon number that graphics system need handle and improve render speed.According to the different characteristics of different scenes, we optimize solution and are:
(1) multi-level details is selected (Level of Detail)
So-called multi-level details is selected, and is each object and sets up a plurality of similar models, and different models are described different to the details of object.Description to the object details is accurate more, and model is also complicated more.According to object factor such as shared area size and user's viewpoint on screen,, thereby reduce the polygon number that needs demonstration for each object is selected different detail model.Not only can be used for the enclosure space model, also can be used for the open space model.Standard nodes LOD node among the Bitmanagement SDK can be realized the optimization of this part.
(2) world subdivision (World Subdivision)
The scene of a complexity can be divided into a plurality of scenes, and is visible between each scene, invisible or invisible fully.For example a building is divided into a plurality of subdivisions by the room.At this moment, the observer only can see the scene in the room and other room that links to each other with door, window etc. in certain room.System just can reduce the polygon number that need show at any one time effectively like this, thereby has reduced scene complexity effectively.But this method is only effective to enclosure space, and open space then is difficult to make in this way.Can carry out piecemeal to scene with the expanding node among the BitmanagementSDK.These nodes have: TreeGroup, OctTree, QuadTree, BspTree, BspGroup etc.
(3) visible blanking (Visibility Culling)
Different with the world subdivision method, this method and user's viewpoint is in close relations, and the former is only relevant with user's scene location of living in.Make in this way, system is the current scene that can " see " of explicit user only, when the user only can see the seldom part of scene, because system only shows corresponding scene, thereby has significantly reduced the polygon number that needs demonstration.Occlusion, Cell and Portal node are realized scene optimization with the method for visible blanking among the Bitmanagement SDK.
The applying virtual reality technology around how, the distributed three-dimensional visible environment that provide true to nature, intelligentized, has interaction, better showpiece is selected, buys, is assessed showpiece to make things convenient for the user.Native system is compared with other system has following innovative point:
(1), constructs the real-time Transmission algorithm of online large-scale virtual exhibition scene real-time drafting algorithm and mass data based on Bitmanagement SDK;
(2) based on the exhibition commercial activity modeling of the intelligent virtual incarnation of AIML;
(3) based on Bitmanagement SDK with based on the integrated virtual product introduction of image.
In present fierce competitive market, how to use modern advanced infotech and change original traditional product introduction pattern, utilize virtual product to substitute actual products, understand customer demand by effective interactive means, improve customer satisfaction,, become the task of top priority for society, for manufacturer creates higher economy and social value, its application aspect virtual business will promote the modern service industry in Shanghai.
Claims (4)
1. based on the method for optimizing virtual business scene of model simplification and multi-resolution representation, it is characterized in that, described model simplification and multi-resolution representation are the complexity by the reduction scene, promptly reduce the polygon number that graphics system need handle and improve render speed, this method may further comprise the steps:
(1) multi-level details is selected
Described multi-level details is selected, and is each object and sets up a plurality of similar models, and different models are described different to the details of object, and accurate more to the description of object details, model is also complicated more; According to object factor such as shared area size and user's viewpoint on screen,, thereby reduce the polygon number that needs demonstration for each object is selected different detail model;
(2) world subdivision
The scene of a complexity can be divided into a plurality of scenes, and is visible between each scene, invisible or invisible fully, and system just can reduce the polygon number that need show at any one time effectively, thereby reduced scene complexity effectively;
(3) visible blanking
Described visible blanking and user's viewpoint is in close relations, system is the current scene that can " see " of explicit user only, when the user only can see the seldom part of scene,, thereby significantly reduced the polygon number that needs demonstration because system only shows corresponding scene.
2. the method for optimizing virtual business scene based on model simplification and multi-resolution representation according to claim 1 is characterized in that, described multi-level details is selected not only to can be used for the enclosure space model, also can be used for the open space model.
3. the method for optimizing virtual business scene based on model simplification and multi-resolution representation according to claim 1 is characterized in that described world subdivision is only effective to enclosure space, and only relevant with user's scene location of living in.
4. the method for optimizing virtual business scene based on model simplification and multi-resolution representation according to claim 1 is characterized in that, described step (1), step (2), step (3) order can be changed arbitrarily.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810034411A CN101527050A (en) | 2008-03-07 | 2008-03-07 | Method for optimizing virtual business scene based on model simplification and multiresolution representation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810034411A CN101527050A (en) | 2008-03-07 | 2008-03-07 | Method for optimizing virtual business scene based on model simplification and multiresolution representation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101527050A true CN101527050A (en) | 2009-09-09 |
Family
ID=41094906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810034411A Pending CN101527050A (en) | 2008-03-07 | 2008-03-07 | Method for optimizing virtual business scene based on model simplification and multiresolution representation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101527050A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102521851A (en) * | 2011-11-18 | 2012-06-27 | 大连兆阳软件科技有限公司 | Batch rendering method for static models |
| WO2012083508A1 (en) * | 2010-12-24 | 2012-06-28 | 中国科学院自动化研究所 | Fast rendering method of third dimension of complex scenes in internet |
| CN104217049A (en) * | 2013-05-31 | 2014-12-17 | 北京空间技术研制试验中心 | Lightweight display method of complex system three-dimensional model |
| CN104246797A (en) * | 2012-04-26 | 2014-12-24 | 宝洁公司 | Systems and methods for creating and utilizing high visual aspect ratio virtual environments |
| CN104769646A (en) * | 2012-10-19 | 2015-07-08 | 杜亚实验室股份有限公司 | Method for optimized polygon reduction of computer graphics |
| CN111199572A (en) * | 2019-12-20 | 2020-05-26 | 江苏原力动画制作股份有限公司 | Continuous simplification-based real-time rendering method for super-large geometric solid |
-
2008
- 2008-03-07 CN CN200810034411A patent/CN101527050A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012083508A1 (en) * | 2010-12-24 | 2012-06-28 | 中国科学院自动化研究所 | Fast rendering method of third dimension of complex scenes in internet |
| CN103180881A (en) * | 2010-12-24 | 2013-06-26 | 中国科学院自动化研究所 | Fast rendering method of third dimension of complex scenes in internet |
| CN103180881B (en) * | 2010-12-24 | 2016-08-03 | 中国科学院自动化研究所 | Complex scene sense of reality fast drawing method on the Internet |
| US9773343B2 (en) | 2010-12-24 | 2017-09-26 | Institute Of Automation, Chinese Academy Of Sciences | Method for real-time and realistic rendering of complex scenes on internet |
| CN102521851A (en) * | 2011-11-18 | 2012-06-27 | 大连兆阳软件科技有限公司 | Batch rendering method for static models |
| CN104246797A (en) * | 2012-04-26 | 2014-12-24 | 宝洁公司 | Systems and methods for creating and utilizing high visual aspect ratio virtual environments |
| CN104769646A (en) * | 2012-10-19 | 2015-07-08 | 杜亚实验室股份有限公司 | Method for optimized polygon reduction of computer graphics |
| CN104217049A (en) * | 2013-05-31 | 2014-12-17 | 北京空间技术研制试验中心 | Lightweight display method of complex system three-dimensional model |
| CN111199572A (en) * | 2019-12-20 | 2020-05-26 | 江苏原力动画制作股份有限公司 | Continuous simplification-based real-time rendering method for super-large geometric solid |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Lovett et al. | Using 3D visualization methods in landscape planning: An evaluation of options and practical issues | |
| Wang et al. | Integrating BIM and augmented reality for interactive architectural visualisation | |
| CA3135585C (en) | Three-dimensional virtual environment | |
| US9720562B2 (en) | Method of providing virtual reality based three-dimensional interface for web object searches and real-time metadata representations and web search system using the three-dimensional interface | |
| US9064023B2 (en) | Providing web content in the context of a virtual environment | |
| EP2255492B1 (en) | Inclusion of web content in a virtual environment | |
| Wu et al. | Cultural tourism and temples: Content construction and interactivity design | |
| CN102542129A (en) | Three-dimensional (3D) scene display system | |
| CN103020340A (en) | Three-dimensional home design system based on web | |
| CN103823949A (en) | Intelligent device control and arrangement system and method applied to indoor design | |
| CN101527050A (en) | Method for optimizing virtual business scene based on model simplification and multiresolution representation | |
| WO2008128188A2 (en) | Systems and methods for interactive real estate viewing | |
| CN104504576A (en) | Method for achieving three-dimensional display interaction of clothes and platform | |
| CN108877310A (en) | A kind of novel VR encyclopaedia classroom | |
| Kostyk et al. | VR in customer-centered marketing: Purpose-driven design | |
| KR20090000729A (en) | System and method for web based cyber model house | |
| Li | Research on application of virtual reality technology in information retrieval | |
| Liu | The virtual reality technology in art design | |
| Du et al. | A survey of business process simulation visualization | |
| Wilmsherst et al. | Utilizing virtual reality and three-dimensional space, visual space design for digital media art | |
| Yu et al. | Electronic commerce applications based on virtual reality technology | |
| Ishida et al. | A high presence traditional crafts experience system that combines multicultural architectural styles with Japanese culture | |
| Putra et al. | Experiencing Heritage through Immersive Environment using Affordable Virtual Reality Setup | |
| Zhang et al. | Application and Development Prospect of Virtual Reality Technology in Interior Soft Decoration Design Industry | |
| Fu et al. | Research and design of intelligent library based on virtual reality |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20090909 |