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Seminar Details

Date 6-6-2007
Time 11:00
Room/Location 711
Title 2D Visualization of 3D Shapes
Speaker Waqar Saleem
Affiliation Max Planck Institut für Informatik
Link https://www.disi.unige.it/index.php?eventsandseminars/seminars
Abstract As 3D shapes become more common, the need to effectively visualise them gains importance. This visualisation is typically achieved by presenting a viewer with a few representative images of the 3D shape. This talk is divided into three parts, each approaching the above problem from a different aspect. Best view methods compare different views of the 3D shape based on geometric criteria and choose the best one(s) among them. We present a method that exploits results of perceptive experiments to compute N representative views of the 3D shape. View comparison methods typically employ methods that are inherently rotation invariant. As 3D models do not usually contain up-vector information, selected views often contain the shape in arbitrary orientations. We present an example-based method to correct the orientation of a shape in a view image. The last part of the talk presents our solution to the "best fly" problem, which is a natural extension of the best view problem. Instead of finding static views of the shape, we aim to compute a representative animation of it. A path for a virtual camera pointing at the shape is computed, and its speed and zoom along the path are varied according to properties of the shape in the current view.
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