Knowledge-based augmented reality
Communications of the ACM - Special issue on computer augmented environments: back to the real world
Annotating real-world objects using augmented reality
Computer graphics
Tilting operations for small screen interfaces
Proceedings of the 9th annual ACM symposium on User interface software and technology
SKETCH: an interface for sketching 3D scenes
SIGGRAPH '96 Proceedings of the 23rd annual conference on Computer graphics and interactive techniques
Communications of the ACM
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Proceedings of the 26th annual conference on Computer graphics and interactive techniques
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Proceedings of the 14th annual ACM symposium on User interface software and technology
Creating principal 3D curves with digital tape drawing
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
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IEEE Computer Graphics and Applications
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IEEE Intelligent Systems
Stroke-Input Methods for Immersive Styling Environments
SMI '04 Proceedings of the Shape Modeling International 2004
Semi-automatic Annotations in Unknown Environments
ISMAR '07 Proceedings of the 2007 6th IEEE and ACM International Symposium on Mixed and Augmented Reality
IEICE - Transactions on Information and Systems
Management of Situated Knowledge for Complex Instruments Using 3D Items Creation
IEA/AIE '09 Proceedings of the 22nd International Conference on Industrial, Engineering and Other Applications of Applied Intelligent Systems: Next-Generation Applied Intelligence
A freehand sketching interface for progressive construction of 3D objects
Computers and Graphics
Low-Overhead Texture Mapping on 3D Models
CIT '09 Proceedings of the 2009 Ninth IEEE International Conference on Computer and Information Technology - Volume 02
Drawing on Air: Input Techniques for Controlled 3D Line Illustration
IEEE Transactions on Visualization and Computer Graphics
Social intelligence design for knowledge circulation
DNIS'10 Proceedings of the 6th international conference on Databases in Networked Information Systems
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This paper presents a low-overhead 3D items drawing engine for a situated knowledge medium aiming at improving the knowledge communication between experts and end-users of scientific instruments. The knowledge representation is based on the concept of Spatial Knowledge Quantum that associates a 3D geometry structure with knowledge. Our engine attempts to provide an effective means for creating those 3D structures. It consists of a hand-held Augmented Reality (AR) system and allows to directly draw, in the context of a subject instruments, free 3D lines. A line is recorded as a set of sample points. From these points a volume can optionally be interpolated by performing a Delaunay tetrahedralization. During the drawing operations, a physically concrete version of the instrument is not required. The AR interface shows the real-world combined, not only with the created 3D items, but also with a virtual representation of the instrument. A virtualized instrument offers many advantages such as availability, mobility, scalability, spatial freedom (e.g., we can draw through it) and rendering options.