Rendering Almost Perspective Views from a Sparse Set of Omnidirectional Images
Hynek Bakstein, Tomáš Pajdla, D. Vecerka · 2003
Non-central (X-slits) images can be used in image based rendering (IBR) for new view synthesis for a viewer moving in a restricted region. Novel, i.e. previously unseen, views are rendered from virtual camera positions from a set of images captured at some predefined camera positions. The novel views correspond to camera positions not contained in the input image set. For instance, the input sequence consists of images captured on a circular path, but the viewer can move in a disk defined by that path. We investigate a class of non-central images, the omnidirectional X-slits images, which capture environment around the viewer completely. The virtual viewer can rotate his head freely in each position without the need of creating another image for different viewing direction. New images have to be generated only in case of a change in position of the viewer. This approach allows efficient representation of high resolution (and thus space demanding) images for IBR in memory. 1