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ACM Bangalore, IEEE-CS, IEEE Gold and in-formation Bangalore ACM SIGGRAPH together are holding a technical talk (details below) at IISc on July 18, 2009 at 4:00 PM. TALK TITLE: A Technique of Abstraction and Building Representation in Virtual Urban Models TALK ABSTRACT: This talk presents a technique for creating abstract representations of modern urban areas. We identify and apply cartographic and cognitive principles to develop a solution that is implemented in the context of a state of art Geographic Information Systems. At the core of our solution is a building facade modeling approach that supports varying degrees of abstraction. This is achieved by introducing a concept of "facade waveforms" and representing building facades as combinations of these waveforms. A Fourier series approximation of the waveforms is used during the rendering processes resulting in an elegant solution to anti-aliasing. The formulation retains the semantic information in the representation that enables meaningful extensions like night time façade generation. The solution is implemented as a pixel shader and therefore leads to a large reduction in texture memory requirement compared to existing building rendering techniques. Additionally, in the case of web based systems there is significant reduction in bandwidth requirement. We highlight the features of the proposed solution with demonstrative images. SPEAKER PROFILE: Neeharika Adabala is a researcher in the Vision, Graphics and Visualization Group of Microsoft Research India. Her current research focuses on effective visualization of and interaction with information, and use of semantics to improve user-computer interaction. She has worked in Philips Research India, MIRALab - University of Geneva, and University of Central Florida. She has a Masters from the Indian Institute of Technology, Madras and a PhD from the Indian Institute of Science, Bangalore.