Legible Simplification of Textured Urban Models

R Chang, T Butkiewicz, C Ziemkiewicz, Z Wartell, Nancy Pollard, and W Ribarsky
IEEE Computer Graphics and Applications, 28(3), 27 -- 36, , May, 2008


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Abstract
Mesh simplification and discrete levels of detail (LOD) are wellstudied areas of research in computer graphics. However, until recently, most of the developed algorithms have focused on simplification and viewing of a single object with a large number of polygons. When these algorithms are applied to a large collection of simple models, many objects may be completely erased, leading to results that are misleading to the viewer. In this paper, we present an approach to simplifying city-sized collections of 2.5D buildings based on the principles of “urban legibility” as defined by architects and city planners. We demonstrate that our method, although similar to traditional simplification methods when compared quantitatively, better preserves the legibility and understandability of a complex urban space at all levels of simplification.

Keywords
Urban models, simplification, levels of detail

Notes

Text Reference
R Chang, T Butkiewicz, C Ziemkiewicz, Z Wartell, Nancy Pollard, and W Ribarsky, "Legible Simplification of Textured Urban Models," IEEE Computer Graphics and Applications, 28(3), 27 -- 36, , May, 2008

BibTeX Reference
@article{Pollard_2008_7284,
   author = "R Chang and T Butkiewicz and C Ziemkiewicz and Z Wartell and Nancy Pollard and W Ribarsky",
   title = "Legible Simplification of Textured Urban Models",
   journal = "IEEE Computer Graphics and Applications, 28(3), 27 -- 36",
   month = "May",
   year = "2008",
   number= "CMU-RI-TR-",
}