http://wiki.cs.purdue.edu/cgvlab/ 2009-11-22T13:45:02-05:00 http://wiki.cs.purdue.edu/cgvlab/ http://wiki.cs.purdue.edu/cgvlab/lib/images/favicon.ico text/html 2009-11-20T12:33:48-05:00 rosenpa http://wiki.cs.purdue.edu/cgvlab/doku.php?id=talks&rev=1258738428&do=diff Spring 2009 Date Time Room Speaker(s) Title Sep 14 1:00-2:00 LWSN 3151A Introductions and Siggraph Review Sep 21 1:00-2:00 LWSN 3151A Yi Xu Invertible Motion Blur in Video Paper Project Webpage Sep 28 1:00-2:00 LWSN 3151A Chris Hoffmann Geometric Constraints and the GPU Oct 5 1:00-2:00 LWSN 3151A Samer Samir Barakat Interactive Computation and Rendering of Lagrangian Coherent Structures Oct 12 1:0… text/html 2009-11-16T11:48:38-05:00 rosenpa http://wiki.cs.purdue.edu/cgvlab/doku.php?id=projects:reflections&rev=1258390118&do=diff Summary This project is concerned with developing techniques which producing high-quality rendering effects such as reflections, refractions, ambient occlusion, and relief texture mapping at interactive rates. This is done one of two ways. The first, develop cameras based upon a object in the scene and render the scene using those cameras. Alternatively, we replace geometry with images generated by non-pinhole cameras. Rays can then be intersected with the image-based approximations of the ge… text/html 2009-11-16T11:48:23-05:00 rosenpa http://wiki.cs.purdue.edu/cgvlab/doku.php?id=projects:camera_model_design&rev=1258390103&do=diff Summary Images are used in computer graphics and visualization to convey information. Images are computed by sampling data with rays defined by a camera model. Most images used in computer graphics and visualization are computed using the planar pinhole camera model, which suffers from important limitations such as uniform sampling rate, and single viewpoint. We propose to overcome these limitations through camera model design. The camera model design paradigm advocates designing the set of r… text/html 2009-11-16T11:23:56-05:00 rosenpa http://wiki.cs.purdue.edu/cgvlab/doku.php?id=projects&rev=1258388636&do=diff Acquisition and Modeling Restoring the Past: Virtual Restoration of Real-World Objects We present a system to virtually restore damaged or historically significant objects without needing to physically change the object in any way. This work addresses both creating a restored synthetic version of the image as viewed from a camera and projecting the appropriate light patterns using digital projectors to give the illusion of the physical object being restored. In collaboration with museums… text/html 2009-11-16T11:21:17-05:00 rosenpa http://wiki.cs.purdue.edu/cgvlab/doku.php?id=projects:sample_camera&rev=1258388477&do=diff Feed-forward reflection rendering The sample-based camera (SBC) is a general camera constructed from a given set of rays. The first application of SBCs that we have explored is rendering accurate reflections on curved reflectors at interactive rates. In order to render reflections with the feed forward graphics pipeline, one has to compute the image points where a reflected scene point projects. For general reflectors, the problem of projecting reflected vertices does not have a closed form s…