Abstract
The objective of this study is to develop 3D animation human figures using an existing 3D anthropometrical database. A total of 15 figures of different body sizes, 5 heights and 3 weights, will be developed each for males and females. The existing 3D anthropometrical database, called 3D Human Body Bank, was measured using 3D body scanners. For both genders, we began with the establishment of the median body size one, called prototype model. The whole developing process consists of the design of skeletal system, the assignment of the coordinate systems, the planning of data structure, and the establishment of the relationship between the surface and the skeletal system. After, the prototype model was further calibrated and validated on accuracy and precision using true scan data. Then the similar procedure was applied on the rest of 14 figures.The skeletal system consists of 29 rotation centers and 7 end nodes, organized in multi-linkage form of 35 stick-links, and 11 rigid bodies. The coordinate system is spherical which consists of 4 degrees of freedom, namely (L, ψ, θ, α). The data structure of the skeleton is originated in pelvis and organized in 5 paths, such as torso, 2 upper extremities, and 2 lower extremities. The relationship between the surface and the skeletal system is mainly established by assigned the surfaces points as the function of related nodes.The result of this study is a set of 15 animation figures, for both males and females. The looks of these figures are true representation of our body. The accuracy and precision have been carefully calibrated and validated. The skeletons of the figures are far more sophisticated, and the manipulation of posture is also far more compatible to volitional range of motion notations, than most market software.