期刊名称：ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
印刷版ISSN：2194-9042
电子版ISSN：2194-9050
出版年度：2006
卷号：XXXVI Part 4
出版社：Copernicus Publications
摘要：Full 3D geographic information has always been a real problem and it still causes problems today. Although computer software and Photogrammetric and LIDAR techniques make it possible to create full 3D models quite easily, 3D information involves another important problem: the way it can be used. The representation of complete 3D information is something that has to take into account the bi-dimensional supports where geographical information has been represented for years; even in this computer age, the visualization of a complete 3D model involves the use of a 2D video screen. At present, 3D visualization devices are expensive, and not very common, therefore a system that aims at distributing a 3D model has to deal with the bi-dimensionality of video screens. In order to communicate 3D information, it is necessary to decide which infrastructure has to be used. The trend of society today is to become more mobile and distributed: if a tool to distribute 3D information has to be invented, it will have to be based on a web infrastructure. Considering the fact that 2D supports are easy to use and that even modern computer science and the 3D models that can be generated can be used using 2D screens, with a successions of views of the 3D model, the Geomatics research group of the Land, Environment and Geo-Engineering Department, DITAG at the Politecnico di Torino has developed a new survey tool called Solid Image: this tool, which can be used in the analysis and presentation of survey data, allows the user to access and manage 3D data by simply viewing a 2D monoscopic image. The utility of this tool has been greatly appreciated by the users during its testing, therefore the Politecnico di Torino set up SIR – Innovative Surveys Resources – a spin-off company in January 2006 with the aim of producing and marketing Solid Image based services. At present the Solid Image can only be used in a desktop environment utilizing a common commercial software such as Adobe Photoshop, using a freely distributed plug-in. The article deals with the development of a web visualization tool based on an Open Source architecture. The advantages and disadvantages of each explored solution are presented, together with the functionality the viewer offers. The tests were made on a Solid Image of "La Fagianaia" building, a small building in the Royal Racconigi Park, Piedmont (Italy), a former residence of the Savoy Royal family, a site that was included in the UNESCO world heritage list in 1997
