The Computer Science Colloquium

Ioannis Stamos
(CUNY-Hunter College)

"3D Photography: Reconstructing Photorealistic 3D Models of Large-Scale Scenes."

    Recently there has been an increased interest in the photorealistic modeling and rendering of large-scale scenes, such as urban structures. This requires a fusion of range sensing technology and traditional digital photography. A major bottleneck in this process is the automated registration of a large number of geometrically complex 3D range scans and high-resolution 2D images in a common frame of reference. In this talk we will present a novel system that integrates automated 3D registration techniques with multiview geometry for texture mapping 2D images onto 3D range data. Our methods utilize range segmentation and feature extraction algorithms.

    We will also describe our approach in 3D mesh generation. The produced 3D representations are useful for urban planning, historical preservation, or entertainment applications. We will present results of scanning large urban structures, such as the interior of the Grand Central Terminal in New York.

This is joint work with Prof. George Wolberg (CCNY).


Bio:
    Ioannis Stamos is an associate professor of computer science and director of the Vision & Graphics Laboratory at Hunter College of the City University of New York (2001-present). He is also a member of the doctoral faculty of the Graduate Center of CUNY. His research interests include 3D segmentation, range to image registration and 3D modeling. Stamos received a PhD, an MPhil and an MS in computer science from Columbia University. He received an Engineering Diploma in computer engineering & informatics from the University of Patras, Greece. Stamos is a recipient of the Faculty Early Career Development Award (CAREER) by the National Science Foundation.

The Colloquium is supported by generous contributions from the Bloomberg, Information Builders, Inc., and Netlogic, Inc.