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DBSC‐based animation enhanced with feature and motion
Author(s) -
Chen Quan,
Tian Feng,
Seah HockSoon,
Wu Zhongke,
Qiu Jie,
Konstantin Melikhov
Publication year - 2006
Publication title -
computer animation and virtual worlds
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.225
H-Index - 49
eISSN - 1546-427X
pISSN - 1546-4261
DOI - 10.1002/cav.122
Subject(s) - animation , computer science , interpolation (computer graphics) , artificial intelligence , computer graphics (images) , motion (physics) , motion interpolation , curvature , computer vision , distortion (music) , feature (linguistics) , computer animation , character animation , linear interpolation , pattern recognition (psychology) , geometry , mathematics , block matching algorithm , amplifier , computer network , linguistics , philosophy , bandwidth (computing) , object (grammar) , video tracking
Disk B‐spline curve (DBSC) is previously proposed for drawing and animation. To generate inbetweens, linear interpolation is applied between points evenly taken in parametric domain of two DBSCs without incorporating characteristics of shape or motion, which results in distortion and unrealistic motion in animation. In this paper, more information in keyframes is extracted and utilized in inbetween generation. Points with high curvature are computed and corresponded between strokes in interpolation, which preserves features of strokes in animation. In addition, global motion of a character or its various components is estimated and interpolated as well, which retains the shapes during the motion. By applying the information to interpolation, the distortion is eliminated and smoother sequence of animation is achieved. Copyright © 2006 John Wiley & Sons, Ltd.