TY - GEN
T1 - Anticipation effect generation for character animation
AU - Kim, Jong Hyuk
AU - Choi, Jung Ju
AU - Shin, Hyun Joon
AU - Lee, In Kwon
PY - 2006
Y1 - 2006
N2 - According to the principles of traditional 2D animation techniques, anticipation makes an animation convincing and expressive. In this paper, we present a method to generate anticipation effects for an existing animation. The proposed method is based on the visual characteristics of anticipation, that is, "Before we go one way, first we go the other way [1]." We first analyze the rotation of each joint and the movement of the center of mass during a given action, where the anticipation effects are added. Reversing the directions of rotation and translation, we can obtain an initially guessed anticipatory pose. By means of a nonlinear optimization technique, we can obtain a consequent anticipatory pose to place the center of mass at a proper location. Finally, we can generate the anticipation effects by compositing the anticipatory pose with a given action, while considering the continuity at junction and preserving the high frequency components of the given action. Experimental results show that the proposed method can produce the anticipatory pose successfully and quickly, and generate convincing and expressive anticipation effects.
AB - According to the principles of traditional 2D animation techniques, anticipation makes an animation convincing and expressive. In this paper, we present a method to generate anticipation effects for an existing animation. The proposed method is based on the visual characteristics of anticipation, that is, "Before we go one way, first we go the other way [1]." We first analyze the rotation of each joint and the movement of the center of mass during a given action, where the anticipation effects are added. Reversing the directions of rotation and translation, we can obtain an initially guessed anticipatory pose. By means of a nonlinear optimization technique, we can obtain a consequent anticipatory pose to place the center of mass at a proper location. Finally, we can generate the anticipation effects by compositing the anticipatory pose with a given action, while considering the continuity at junction and preserving the high frequency components of the given action. Experimental results show that the proposed method can produce the anticipatory pose successfully and quickly, and generate convincing and expressive anticipation effects.
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U2 - 10.1007/11784203_61
DO - 10.1007/11784203_61
M3 - Conference contribution
AN - SCOPUS:33746255231
SN - 354035638X
SN - 9783540356387
T3 - Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
SP - 639
EP - 646
BT - Advances in Computer Graphics - 24th Computer Graphics International Conference, CGI 2006
PB - Springer Verlag
T2 - 24th Computer Graphics International Conference, CGI 2006
Y2 - 26 June 2006 through 28 June 2006
ER -