A Foveal Inset for Large Display Environments

B.A. Ahlborn, O. Kreylos, B. Hamann, O. Staadt
IEEE Virtual Reality Conference (VR 2006)  
a) b) Figure 1 : Foveal inset. a: The user directs the projection of the foveal inset using a laser pointer. The size of the projected inset is significantly smaller than the tiles of the rear-projected display wall, thus providing a higher resolution. b: Magnified view of a high-resolution slice of a cryosection of a monkey brain. The boundary between the high-resolution foveal inset (left) and the lower-resolution display wall (right) is clearly visible. Note that the pixel dimensions of the
more » ... dimensions of the foveal inset projector and the display wall projector are identical.(Aerial photographs courtesy of the City of Davis, CA. Monkey brain data set courtesy Abstract We introduce a system that adds a foveal inset to large-scale projection displays. The effective resolution of the foveal inset projection is higher than the original display resolution, allowing the user to see more details and finer features in large data sets. The foveal inset is generated by projecting a high-resolution image onto a mirror mounted on a pan-tilt unit that is controlled by the user with a laser pointer. Our implementation is based on Chromium and supports many OpenGL applications without modifications. We present experimental results using high-resolution image data from medical imaging and areal photography.
doi:10.1109/vr.2006.7 dblp:conf/vr/AhlbornKHS06 fatcat:azmac3jdhjcbxiwhvjjtjljfue