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[LST+03b]  Computer-Assisted Cel Animation: Post-Processing After Inbetweening

Lu:2003:CCA (In proceedings)
Author(s)Lu J., Seah H.S. and Tian F.
Title« Computer-Assisted Cel Animation: Post-Processing After Inbetweening »
InProceedings of the 1[textsuperscript]st International Conference on Computer Graphics and Interactive Techniques in Australasia and South East Asia (GRAPHITE 2003)
Page(s)13--20
Year2003
PublisherACM Press
AddressNew York

Abstract
Although 2D animation production today has become more efficient with the help of improved computer technology, it is still very labor intensive. The less creative inking/painting and inbetweening processes take a significant portion of the total work. Our Computer-assisted Cel Animation (CACAni) research aims at automating the above two processes to assist animators in producing their work faster and with better quality. In this paper, a postprocessing algorithm for generating inbetween frames is proposed. Algorithms for generating inbetweenings, particularly, the Feature based Matching (MFBA) of keyframes and linear inbetween frame generation are also introduced. Images constructed with MFBA may have gaps (artefacts) due to the lack of smoothness among adjacent displacement vectors as well as the discrete feature of rasterization. With the guidance of displacement vectors, our algorithm classifies the gaps into several categories and handles them accordingly. The results are compared with those processed by filtering method to show the superiority of the new algorithm.

BibTeX code
@inproceedings{Lu:2003:CCA,
  opteditor = {},
  optpostscript = {},
  optorganization = {},
  author = {Ji Lu and Hock Soon Seah and Feng Tian},
  optkey = {},
  optannote = {},
  optseries = {},
  address = {New York},
  localfile = {papers/Lu.2003.CCA.pdf},
  optisbn = {},
  publisher = {ACM Press},
  optkeywords = {},
  doi = {http://doi.acm.org/10.1145/604471.604477},
  optmonth = {},
  optciteseer = {},
  opturl = {},
  optcrossref = {},
  optwww = {},
  booktitle = {Proceedings of the 1\textsuperscript{st} International Conference
               on Computer Graphics and Interactive Techniques in Australasia
               and South East Asia (GRAPHITE 2003)},
  optvolume = {},
  optnumber = {},
  abstract = {Although 2D animation production today has become more efficient
              with the help of improved computer technology, it is still very
              labor intensive. The less creative inking/painting and
              inbetweening processes take a significant portion of the total
              work. Our Computer-assisted Cel Animation (CACAni) research aims
              at automating the above two processes to assist animators in
              producing their work faster and with better quality. In this
              paper, a postprocessing algorithm for generating inbetween frames
              is proposed. Algorithms for generating inbetweenings,
              particularly, the Feature based Matching (MFBA) of keyframes and
              linear inbetween frame generation are also introduced. Images
              constructed with MFBA may have gaps (artefacts) due to the lack of
              smoothness among adjacent displacement vectors as well as the
              discrete feature of rasterization. With the guidance of
              displacement vectors, our algorithm classifies the gaps into
              several categories and handles them accordingly. The results are
              compared with those processed by filtering method to show the
              superiority of the new algorithm.},
  title = {{C}omputer-{A}ssisted {C}el {A}nimation: {P}ost-{P}rocessing {A}fter
           {I}nbetweening},
  year = {2003},
  pages = {13--20},
}

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