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## [CKL+04]  Non-photorealistic 3-D Facial Animation on the PDA Based on Facial Expression Recognition

 Choi:2004:N3F (In proceedings) Author(s) Choi S.M., Kim Y.G., Lee D.S., Lee S.O. and Park G.T. Title « Non-photorealistic 3-D Facial Animation on the PDA Based on Facial Expression Recognition » In Proceedings of 4th International Symposium on Smart Graphics Series Lecture Notes in Computer Science Editor(s) Andreas Butz and Antonio Krüger and Patrick Olivier Volume 3031 Page(s) 11--20 Year 2004 Publisher Springer-Verlag Address Berlin $·$ Heidelberg $·$ New York URL http://springerlink.metapress.com/link.asp?id=dcq99vu63b9mqycu Editor(s) Andreas Butz and Antonio Krüger and Patrick Olivier

 Abstract This paper presents a facial expression recognition-synthesis system. In the front, it detects a facial area within the given image and then classifies its facial expression into 7 emotional weightings. Such weighting information, transmitted to the PDA via a mobile network, is used for non-photorealistic facial expression animation. The cartoon-like shading method, adopted as a non-photorealistic 3-D technique, is developed to render a 3-D avatar that conveys a familiar and yet unique facial character, even without employing extensive polygons. We found that facial expression animation using emotional curves is more effective in expressing the timing of an expression comparing to the linear interpolation method. The present emotional avatar embedded on a mobile platform can be used in the cyberspace.

 BibTeX code ``````@inproceedings{Choi:2004:N3F, optpostscript = {}, optorganization = {}, author = {Soo-Mi Choi and Yong-Guk Kim and Don-Soo Lee and Sung-Oh Lee and Gwi-Tae Park}, optkey = {}, series = LNICS, optannote = {}, editor = {Andreas Butz and Antonio Kr{\"u}ger and Patrick Olivier}, url = {http://springerlink.metapress.com/link.asp?id=dcq99vu63b9mqycu}, address = SpringerAdr, localfile = {papers/Choi.2004.N3F.pdf}, optisbn = {}, publisher = SpringerPub, optmonth = {}, optciteseer = {}, doi = {http://dx.doi.org/10.1007/b97744}, volume = {3031}, optcrossref = {}, optwww = {}, booktitle = {Proceedings of 4th International Symposium on Smart Graphics}, optnumber = {}, abstract = {This paper presents a facial expression recognition-synthesis system. In the front, it detects a facial area within the given image and then classifies its facial expression into 7 emotional weightings. Such weighting information, transmitted to the PDA via a mobile network, is used for non-photorealistic facial expression animation. The cartoon-like shading method, adopted as a non-photorealistic 3-D technique, is developed to render a 3-D avatar that conveys a familiar and yet unique facial character, even without employing extensive polygons. We found that facial expression animation using emotional curves is more effective in expressing the timing of an expression comparing to the linear interpolation method. The present emotional avatar embedded on a mobile platform can be used in the cyberspace.}, title = {{N}on-photorealistic {3-D} {F}acial {A}nimation on the {PDA} {B}ased on {F}acial {E}xpression {R}ecognition}, year = {2004}, pages = {11--20}, }``````

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