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Cyclification of Human Motion for Animation Synthesis
Eurographics 2003, September 1-6, 2003, Granada, Spain
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Amr
Ahmed, Farzin Mokhtarian, and Adrian Hilton
{A.Ahmed |F.Mokhtarian | A.Hilton}@eim.surrey.ac.uk
Centre for Computer Vision, Speech, and Signal Processing,
Department of Electronic Engineering,
University of Surrey, Guildford, Surrey GU2 7XH, UK.
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Abstract
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In this paper, new techniques are introduced for
matching the motion cycle boundaries by using simple animation
processing algorithms based on some observed characteristics from
different families of cyclic motions. Matching the cycle
boundaries is one of the essential stages in generating a stream
of animation of cyclic human movements. If the cycle boundaries
are not matched, noticeable artifact and flickers will appear at
these boundaries regardless of how realistic is the available
motion cycle. The proposed techniques are developed to modify the
motion cycle even in the case, where only one cycle is provided.
These techniques do not only match the cycle boundaries but also
correct other parts of the cycle and motion constraints. The
techniques are computationally efficient as they work directly on
the animation data (without conversion to intermediate
representations such as spline or time-frequency transforms).
Moreover, many aspects of animation (including joint limits and
important motion constraints) are preserved as the modification is
guided by the original motions.
Categories and Subject Descriptors (according to ACM CCS): I.3.7 [Computer Graphics]: Three-Dimensional Graphics
and Realism --- Animation
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