Thus crowd and each internet-user may be defined as potential neo-photogrammetrists (Leberl, 2010).Īs cities expand vertically, safeguarding of tenure requires a clear 3D picture in terms of property rights, restrictions and responsibilities. Modern practices and requirements aim to the development of a VGI geo-data future and Internet-based automated photogrammetric solutions, in order to describe in detail and model the 3D world. Each volunteer acts like a remote sensor (Goodchild 2007b) by creating and sharing geographic data in a Web 2.0 community and thus, a comprehensive data source is created. In recent years, Volunteered Geographic Information (VGI) became popular, where VGI describes how an ever-expanding range of users collaboratively collects geographic data (Goodchild 2007a). Traditional photogrammetric mapping has been in the realm of industrial organizations collecting imagery from the air and developing maps and perhaps 3D information of urban spaces from these images (Leberl, 2010). Image-based 3D reconstruction of buildings and architectural monuments is a well-studied problem in photogrammetry and computer vision. of Photogrammetry, School of Rural and Surveying Engineering, National Technical University of Athens (NTUA), Greeceĭr Surveying Engineering, Associate Professor, School of Rural & Surveying Engineering, National Technical University of Athens (NTUA), Greece
Surveyor Engineer, PhD student, School of Rural and Surveying Engineering, National Technical University of Athens (NTUA), Greeceĭr Surveying Engineering, Professor at the Lab. In the next issue, the potential of using VGI data in 3D reconstruction procedures, indicating the advantages and disadvantages of this approach will be published in addition to the potential of using VGI data for 3D cadastral surveys. The algorithms and techniques in 3D reconstruction which may be used to provide accurate and detailed 3D models are also discussed. In this issue, the progress realated to utilize VGI data in visualizing the 3D world is presented. When done you can publish the model(s) to Virtual Earth and the model is added to your VE collection and you can view it using VE 3D and share it with your friends.This study presents an evaluation of the current state of the art of algorithms and techniques used for 3D modelling and investigates the potential of their usage for 3D cadastre. The screen shot to the right shows a really fast created model of our house and garage done in just a few minutes.
Sketchup has been my family’s favorite tool when we are redecorating our house. Nothing bad about that since I really like it. All actions such as modifying objects feels like a rip-off from Sketchup. If you ever tried Google Sketchup you will immediately find yourself content with the functionality, otherwise use the tutorial. When the interface is up you just have to align the map and then start drawing rectangles, lines or arcs. It is also really slow and hogs your CPU. In my case I had to retry about 10 times due to some unexpected errors. Since this is a beta it will take a while until the 3DVIA interface opens up.
The tool is a browser plugin which will open when you, from the Virtual Earth 3D mode right-click where you want to insert a new model and select Add a 3D Model. During the Virtual Earth that I attended yesterday we were shown a really nice beta in which you easily can create your custom 3D Models for Virtual Earth called 3DVIA.
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