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Multimedia Tools and Applications

, Volume 74, Issue 13, pp 4873–4889 | Cite as

Correspondence specification learned from master frames for automatic inbetweening

  • Bingwen Jin
  • Weidong Geng
Article

Abstract

We present a new approach to automatically specify the correspondences between hand-drawn keyframes for automatic inbetweening in 2D facial cartoon animation. Recent techniques are not robust to occlusion as they mainly rely on the information provided by the keyframes, which are 2D drawings lacking 3D information. Our approach creates a hybrid face model to learn the prior knowledge about the approximate 3D geometry and multi-view appearances of an individual character’s face from master frames to overcome the lack of information. Based on the hybrid model, we combine our example-based stroke annotating method with our example-based viewpoint recognition method to automatically specify accurate stroke correspondences, even when there is occlusion. Our approach facilitates auto-inbetweening much.

Keywords

Facial cartoon animation Inbetweening Keyframe Correspondence specification 

Notes

Acknowledgments

This work was supported by a grant from National Program on Key Basic Research Project of China (973 Program, 2013CB329504), National High Technology Research and Development Program of China (863 Program, 2013AA013705), National Natural Science Foundation of China (N0. 61379067), and National Key Technology R&D Program of the Ministry of Science and Technology (2012BAH03F03).

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Copyright information

© Springer Science+Business Media New York 2014

Authors and Affiliations

  1. 1.State Key Lab of CAD&CG, College of Computer Science and TechnologyZhejiang UniversityHangzhouChina

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