Journal article

Scalable visibility color map construction in spatial databases

Farhana Murtaza Choudhury, Mohammed Eunus Ali, Sarah Masud, Suman Nath, Ishat E Rabban



Recent advances in 3D modeling provide us with real 3D datasets to answer queries, such as "What is the best position for a new billboard?" and "Which hotel room has the best view?" in the presence of obstacles. These applications require measuring and differentiating the visibility of an object (target) from different viewpoints in a dataspace, e.g., a billboard may be seen from many points but is readable only from a few points closer to it. In this paper, we formulate the above problem of quantifying the visibility of (from) a target object from (of) the surrounding area with a visibility color map (VCM). A VCM is essentially defined as a surface color map of the space, where each viewpoi..

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Funding Acknowledgements

This research has been conducted at Samsung Innovation Lab in the Department of Computer Science and Engineering (CSE), Bangladesh University of Engineering and Technology (BUET). This work is supported by the grant for Advanced Research in Science from the Ministry of Education, Govt. of the People's Republic of Bangladesh.