Napkin Sketch
نویسندگان
چکیده
This paper describes, Napkin Sketch, a novel 3D sketching interface which attempts to mimic the qualities of conventional sketching medium and tools both in terms of physical properties and interaction experience. A portable tablet PC is used as the sketching platform, and mixed reality techniques are employed to allow 3D sketches to be created on top of a physical napkin. Intuitive manipulation and navigation within the 3D design space is achieved by visually tracking the tablet PC with a camera and mixed reality markers. For sketch input, we improve upon the projective 3D sketching approach with a one stroke plane creation technique. This coupled with the hardware interface produces a fluid and freeform sketching experience. Sketch recognition is also integrated as an alternative method for 3D sketch input, providing users the ability to quickly instance existing 3D models. CR Categories: I.3.6 [Computer Graphics]: Methodology and Techniques – Interaction techniques; I.3.4 [Computer Graphics]: Graphics Utilities – Paint systems; I.3.5 [Computer Graphics]: Computational Geometry and Object Modeling – Curve, surface, solid, and object representations; H.5.1 [Information Interfaces and Presentation]: Multimedia Information Systems – Artificial, augmented, and virtual realities; J.5 [Computer-Aided Engineering]: Computer-aided design
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