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http://dx.doi.org/10.5392/JKCA.2013.13.07.009

Realistic Expression Factor to Visual Presence of Virtual Avatar in Eye Reflection  

Won, Myoung Ju (상명대학교 대학원 감성공학과)
Lee, Eui Chul (상명대학교 소프트웨어대학 컴퓨터과학과)
Whang, Min-Cheol (상명대학교 소프트웨어대학 디지털미디어학과)
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Abstract
In the VnR (Virtual and Real Worlds) of recent virtual reality convergence, the modelling of realistic human face is focused on the facial appearance such as the shape of facial parts and muscle movement. However, the facial changing parameters caused by environmental factors beyond the facial appearance factors can be regarded as important ones in terms of effectively representing virtual avatar. Therefore, this study evaluates user's visual feeling response according to the opacity variation of eye reflection of virtual avatar which is considered as a new parameter for reprenting realistic avatar. Experimental result showed that more clear eye reflection induced more realistic visual feeling of subjects. This result can be regarded as a basis for designing realistic virtual avatar by supporting a new visual realistic representing factor (eye reflection) and its degree of representation (reflectance ratio).
Keywords
Virtual Realization; Virtual Avatar; Eye Reflection;
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1 S. Gibbs, C. Arapis, C. Breiteneder, V. Lalioti, S. Mostatawy, and J. Speier, "Virtual studios: an overview," J. of IEEE Multimedia, Vol.5, No.1, pp.18-35, 1998.   DOI   ScienceOn
2 D. Decarlo, D. Metaxas, and M. Stone, "An anthropometric face model using variational techniques," J. of In Computer Graphics (SIGGRAPH '98 Proceedings), pp.67-74, 1998.
3 E. Petajan, "Very low bitrate face animation coding in MPEG-4," J. of In Encyclopedia of Telecommunications, Vol.17, pp.209-231, 1999.
4 Y. Lee, K. Waters, and D. Terzopoulos, "Realistic modeling for facial animation," J. of In Computer Graphics (SIGGRAPH '95 Proceedings), pp.55-62, 1995.
5 N. Adamo-Villani, G. Beni, and J. White, "3D simulator of ocular motion and expression," J. of ICIT 2005-International Conference on Information Technology, pp.122-127, 2005.
6 K. Mania and A. Chalmers, "The Effects of Levels of Immersion on Memory and Presence in Virtual Environments: A reality Centered Approach," J. of CyberPsychology & Behavior, Vol.4, No.2, pp.247-264, 2001.   DOI   ScienceOn
7 S. Shirmohammadi and N. D. Georganas, "An end-to-end communication architecture for collaborative virtual environments," J. of Computer Networks, Vol.35, No.2, pp.351-367, 2001.   DOI   ScienceOn
8 S. Mills and J. Noyes, "Virtual reality: an overview of user-related design issues revised paper for special issue on "Virtual reality: User Issues" in Interacting with Computers, May 1998," J. of Interacting with computers, Vol.11, No.4, pp.375-386, 1999.   DOI   ScienceOn
9 J. Jin, M. Park, H. Ko, and H. Byun, "Immersive Telemeeting with Virtual Studio and CAVE," J. of Proceedings of International Workshop on Advanced Image Technology, pp.15-20.
10 W. S. Bainbridge, "The scientific research potential of virtual worlds," J. of Science, Vol.317, No.5837, pp.472-476, 2007.   DOI   ScienceOn
11 M. Slater, D. Pertaub, and A. Steed, "Public speaking in virtual reality: Facing an audience of avatars," J. of Computer Graphics and Applications, IEEE, Vol.19, No.2, pp.6-9, 1999.
12 M. J. Won, S. Park, C. J. Kim, E. C. Lee, and M. Whang, "Visual factor Evaluation for the Measurement of Subjective Virtual Realization,"J. of the Science of Emotion & Sensibility, Vol.15, No.3, pp.389-398, 2012.
13 C. Greenhalgh and S. Benford, "Supporting rich and dynamic communication in large scale collaborative virtual environments," J. of In Presence:Teleoperators and Virtual Environments, Vol.8, No.1, pp.14-35, 1999.   DOI   ScienceOn
14 W. Barfield and C. Hendrix, "The effect of update rate on the sence of presence in virtual environment," J. of Virtual reality: Research, Development, Applications, Vol.1, No.1, pp.3-15, 1995.   DOI