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authors Hesina, Gerd and Tobler, Robert F.
year 2003
title Secure and Fast Urban Visualization
source CORP 2003, Vienna University of Technology, 25.2.-28.2.2003 [Proceedings on CD-Rom]
summary Due to the rising interest in urban visualization, a number of issues have emerged that need to be solved for practical application. The most prominent of these issues are: visualization performance and security. Visualization speed concerns the usability of urban visualization. In order to make urban visualization practical, it is necessary to completely hide all latency of loading data. Here we will demonstrate techniques like multi-threading, different rendering methods and level-of-detail that our platform uses to maintain interactive frame-rates in the face of the large amounts of data that are common in urban visualization environments. The secondissue, securing the geometry and image information contained in an urban model is of eminent importance for the owner of the data. We will point out a number of techniques that have been incorporated in our viewing platform in order to maintain a high level of data security: data compression and encryption, obfuscation of access keys, compression and encryption of executables. While perfect security is an unattainable goal, the multi-staged approach of security in our system significantly raises the cost of illegally obtaining access to the geometry or image data. By demonstrating solutions for both issues our framework serves as a viable platform for urban visualization.
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last changed 2003/03/11 19:39
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