Sciweavers

SI3D
2003
ACM

Interactive image-based rendering using feature globalization

13 years 9 months ago
Interactive image-based rendering using feature globalization
Image-based rendering (IBR) systems enable virtual walkthroughs of photorealistic environments by warping and combining reference images to novel viewpoints under interactive user control. A significant challenge in such systems is to automatically compute image correspondences that enable accurate image warping. In this paper, we describe a new algorithm for computing a globally consistent set of image feature correspondences across a wide range of viewpoints suitable for IBR walkthroughs. We first detect point features in a dense set of omnidirectional images captured on an eye-height plane. Then, we track these features from image to image, identifying potential correspondences when two features track to the same position in the same image. Among the potential correspondences, we select the maximal consistent set using a greedy graph-labeling algorithm. A key feature of our approach is that it exploits the multiple paths that can be followed between images in order to increase the ...
Daniel G. Aliaga, Dimah Yanovsky, Thomas A. Funkho
Added 05 Jul 2010
Updated 05 Jul 2010
Type Conference
Year 2003
Where SI3D
Authors Daniel G. Aliaga, Dimah Yanovsky, Thomas A. Funkhouser, Ingrid Carlbom
Comments (0)