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Based On Visual Simulation Of The Virtual Campus System Research And Implementation

Posted on:2007-07-10Degree:MasterType:Thesis
Country:ChinaCandidate:Z X HuFull Text:PDF
GTID:2208360212958080Subject:Software engineering
Abstract/Summary:PDF Full Text Request
The technology of Virtual reality, which is one of the ten prior technologies of world development nowadays, has been widely applied in the fields of military affairs, medical treatment, digital city, culture and education, aviation, cultural relic protection, transportation, architecture and space technology, etc. With the highly development of computer technology, especially the internet, IBR technology of virtual reality has become a research hot spot of computer vision, image processing, computer graphics and AI. The technology has abroad application on many domains, which includes industrial products and merchandise dnimbeating and actualizing system of panoramas navigation about corporation, factory, university and scientific research organization. This paper has introduced several ways of virtual campus display. In particular, based on the differences between 3D modeling and panoramas image, it has analyzed the advantages and disadvantages of these two technologies, then mainly focused on the technology of panoramas navigation and its application in solving three practical problems: manufacture of panoramas, edit of navigable room and design of browser.There are mainly two methods of panoramic image manufacture. One is made by the professional equipment of panoramic obtaining and the other is image mosaic. Due to the high price of the equipment and complexity of its usage, what is widely adopted in recent researches and applications is image mosaic. After the discussion of three panoramic models, this paper gives a new method of sphere panoramic image manufacture based on two fish eye images mosaic. Sphere panoramic means most visual angle of level is 360 degree and most visual angle of vertical is 360 degree.As to the technology of obtaining sphere panoramic by image mosaic, the paper first has a brief discussion on that through ordinary digital camera, then focuses on that through two fish images mosaic. The method based on two fish images mosaic mainly has four parts: pretreatment of fish eye images, constituting of space model, searching parameter of optimization for image mosaic and obtaining of panoramas. Here, this paper innovatively proved perfect model of room construction in theory, then reduce the degree of free from eight to four through searching the best panoramas of mosaic, and all the work can be done automatically, which has...
Keywords/Search Tags:Virtual Reality, Virtual Campus, Image Mosaic, Ball panorama, Hemisphere model
PDF Full Text Request
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