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[HL+94]  Drawing and Animation Using Skeletal Strokes

Hsu:1994:DAU (In proceedings)
Author(s)Hsu S.C. and Lee I.
Title« Drawing and Animation Using Skeletal Strokes »
InProceedings of ACM SIGGRAPH 94 (Orlando, FL, July 24--29, 1994)
SeriesComputer Graphics Proceedings, Annual Conference Series
Editor(s)Andrew Glassner
Page(s)109--118
Year1994
AddressNew York
Editor(s)Andrew Glassner

Abstract
The use of skeletal strokes is a new vector graphics realization of the brush and stroke metaphor using arbitrary pictures as 'ink'. It is based on an idealized 2D deformation model defined by an arbitrary path. Its expressiveness as a general brush stroke replacement and efficiency for interactive use make it suitable as a basic drawing primitive in drawing programs as well as windowing and page description systems. This paper presents our drawing and animation system, 'Skeletal Draw', based on skeletal strokes. The effectiveness of the system in stylish picture creation is illustrated with various pictures made with it. Decisions made in the handling of sub-strokes in a higher order stroke and recursive strokes are discussed. The general anchoring mechanism in the skeletal stroke framework allows any arbitrary picture deformation to be abstracted into a single stroke. Its extension to piecewise continuous anchoring and the anchoring of shear angle and stroke width are explained. We demonstrated how this mechanism allows us to build up powerful pseudo-3D models which are particularly useful in the production of 2œD cartoon drawings and animation. Animation sequences have been made to illustrate the ideas, including a vector graphics based motion blurring technique.

BibTeX code
@inproceedings{Hsu:1994:DAU,
  optcitations =
                  {Bleser:1988:CSR,Guo:1991:MDP,Hsu:1993:SS,Litwinowicz:1991:IAA,Pang:1991:DCT,Sederberg:1992:PBA,Strassmann:1986:HB,Vermeulen:1989:PSP,Whitted:1983:AAL},
  optnote = {},
  optorganization = {},
  author = {Siu Chi Hsu and Irene H. H. Lee},
  optkey = {},
  series = CGPACS,
  optannote = {ISBN 0-89791-667-0},
  editor = {Andrew Glassner},
  optpublisher = {ACM Press/ACM SIGGRAPH},
  address = {New York},
  localfile = {papers/Hsu.1994.DAU.pdf},
  doi = {http://doi.acm.org/10.1145/192161.192186},
  optmonth = jul,
  optcrossref = {},
  booktitle = SIGGRAPH94,
  optstatus = {OK},
  optvolume = {},
  optnumber = {},
  title = {{D}rawing and {A}nimation {U}sing {S}keletal {S}trokes},
  abstract = {The use of skeletal strokes is a new vector graphics realization
              of the brush and stroke metaphor using arbitrary pictures as
              'ink'. It is based on an idealized 2D deformation model defined by
              an arbitrary path. Its expressiveness as a general brush stroke
              replacement and efficiency for interactive use make it suitable as
              a basic drawing primitive in drawing programs as well as windowing
              and page description systems. This paper presents our drawing and
              animation system, 'Skeletal Draw', based on skeletal strokes. The
              effectiveness of the system in stylish picture creation is
              illustrated with various pictures made with it. Decisions made in
              the handling of sub-strokes in a higher order stroke and recursive
              strokes are discussed. The general anchoring mechanism in the
              skeletal stroke framework allows any arbitrary picture deformation
              to be abstracted into a single stroke. Its extension to piecewise
              continuous anchoring and the anchoring of shear angle and stroke
              width are explained. We demonstrated how this mechanism allows us
              to build up powerful pseudo-3D models which are particularly
              useful in the production of 2½D cartoon drawings and animation.
              Animation sequences have been made to illustrate the ideas,
              including a vector graphics based motion blurring technique.},
  year = {1994},
  pages = {109--118},
}

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