Rudiments for a 3D freehand sketch based human-computer interface for immersive virtual enviroments

ABSTRACT

This paper investigates the applicability of context-free grammars to recognize and interpret representative 3D freehand sketches in terms of creating objects, performing transformations, and controlling the design space with the information contained by the sketches. Dynamic gesture recognition is the foundation of a two-layered concept. The subsequent layer performs multiple gesture recognition by parsing a sequence of single gestures depending on a predefined grammar, and simultaneously extracts the required information on the fly.

REFERENCES

• 1: Bimber, O. Continuous 6DOF Gesture Recognition: A Fuzzy Logic Approach. Proceedings of WSCG'99, Plzen, Czech Republic, vol. 1, pp. 24-30, February 1999.
• 2: Andrew S. Forsberg , Joseph J. LaViola, Jr. , Lee Markosian , Robert C. Zeleznik, Seamless Interaction in Virtual Reality, IEEE Computer Graphics and Applications, v.17 n.6, p.6-9, November 1997 [doi>10.1109/38.626956]
• 3: Robert C. Zeleznik , Kenneth P. Herndon , John F. Hughes, SKETCH: an interface for sketching 3D scenes, Proceedings of the 23rd annual conference on Computer graphics and interactive techniques, p.163-170, August 1996 [doi>10.1145/237170.237238]

INDEX TERMS

Primary Classification:
  H. Information Systems
  H.5 INFORMATION INTERFACES AND PRESENTATION (I.7)
      H.5.1 Multimedia Information Systems
          Subjects: Artificial, augmented, and virtual realities

Additional Classification:
  H. Information Systems
  H.5 INFORMATION INTERFACES AND PRESENTATION (I.7)

  I. Computing Methodologies
  I.3 COMPUTER GRAPHICS
      I.3.7 Three-Dimensional Graphics and Realism
          Subjects: Virtual reality
  I.5 PATTERN RECOGNITION
      I.5.2 Design Methodology
          Subjects: Pattern analysis

General Terms:
Design, Human Factors, Performance, Theory

Keywords:
3D interaction, dynamic gesture recognition, freehand sketching, object creation