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Item The Visual Computing of Projector-Camera Systems(The Eurographics Association, 2007) Bimber, Oliver; Iwai, Daisuke; Wetzstein, Gordon; Grundhöfer, Anselm; Dieter Schmalstieg and Jiri BittnerThis state-of-the-art report focuses on real-time image correction techniques that enable projector-camera systems to display images onto screens that are not optimized for projections, such as geometrically complex, colored and textured surfaces. It reviews hardware accelerated methods like pixel-precise geometric warping, radiometric compensation, multi-focal projection, and the correction of general light modulation effects. Online and offline calibration as well as invisible coding methods are explained. Novel attempts in super-resolution, high dynamic range and high-speed projection are discussed. These techniques open a variety of new applications for projection displays. Some of them will also be presented in this report.Item Imperceptible Calibration for Radiometric Compensation(The Eurographics Association, 2007) Zollmann, Stefanie; Bimber, Oliver; Paolo Cignoni and Jiri SochorWe present a novel multi-step technique for imperceptible geometry and radiometry calibration of projectorcamera systems. Our approach can be used to display geometry and color corrected images on non-optimized surfaces at interactive rates while simultaneously performing a series of invisible structured light projections during runtime. It supports disjoint projector-camera configurations, fast and progressive improvements, as well as real-time correction rates of arbitrary graphical content. The calibration is automatically triggered when misregistrations between camera, projector and surface are detected