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Spatially Augmented Reality

Spatially Augmented Reality,Ramesh Raskar,Greg Welch,Henry Fuchs

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Spatially Augmented Reality   (Citations: 41)
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To create an effective illusion of virtual objects coexisting with the real world, see-through HMD-based Augmented Reality techniques supplement the user's view with images of virtual objects. We introduce here a new paradigm, Spatially Augmented Reality (SAR), where virtual objects are rendered directly within or on the user's physical space. A key benefit of SAR is that the user does not need to wear a head-mounted display. Instead, with the use of spatial displays, wide field of view and possibly high-resolution images of virtual objects can be integrated directly into the environment. For example, the virtual objects can be realized by using digital light projectors to "paint" 2D/3D imagery onto real surfaces, or by using built-in flat panel displays. In this paper we present the rendering method used in our implementation and discuss the fundamentally different visible artifacts that arise as a result of errors in tracker measurements. Finally, we speculate about how SAR techniques might be combined with see-through AR to provide an even more compelling AR experience.
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    • ...Another way to display the virtual information is to place these data directly into the environment, not only in the viewpoint of the observer, and is called spatial augmented reality [20]...

    Rafael Roberto, et al. ARBlocks: A Concept for a Dynamic Blocks Platform for Educational Acti...

    • ...Tridimensional objects can be seen on computers, HMD (Head-Mounted Displays), CAVE rooms (Cave Automatic Virtual Environment) or directly on real world, with naked eye (denominated Spatial Augmented Reality) [3]...

    A. C. M. Tavares, et al. NHE: Collaborative Virtual Environment with Augmented Reality on Web

    • ...Spatially augmented reality [10] is breaking this by projecting realistically rendered graphics onto existing object in nature environment...

    Zhen Wang, et al. Relighting in spatial augmented reality

    • ...Spatial augmented reality [32] [33] employs multiple projectors to “paint” imagery onto real, arbitrary surfaces...

    Ismo Rakkolainen. How Feasible Are Star Wars Mid-air Displays

    • ...However, they aremorethanten times cheaper andoffer richgraphical display possibilities, whichhavebeenimpressively demonstrated inavariety of interactive spatial AR applications [6,7].Thefocus ofthese workswasonmultimedia scenarios andhuman-computerinterfaces, thusaiming forahighfidelity ofvisualization rather thanaccuracy, whichwouldbecrucial forindustrial robotic applications...
    • ...processing trajectories directly ontotheworkpiece andissupported byintuitive editing metaphors forselecting, dragging andaltering points using thetracked 6-DOFstylus...
    • ...Thisprocess issupported byan interactive visualization, that displays thecaptured points in real-time andcodedincolor according totheir height (see Figure 6).Thisway,theuserimmediately seeswhichareas havebeencovered already...
    • ...Fig. 6:Digitizing surface points Fig. 8:Virtual kinematics overlay (video-see-through)...

    Gunther Reinhart, et al. A Projection-based User Interface for Industrial Robots

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