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中文摘要：
为了解决虚拟试衣中人体模型可以动态展示服装效果的问题，提出三维人体骨架动态建模。在基于三维人体模型的骨架自动提取的基础上，采用共形几何代数方法描述人体关节点的运动并通过相邻关节点的位置变化表达不同的人体动作。用关键帧插值法实现人体姿态的序列动作，选择螺旋运动算子实现了基于2D视频图像的3D人体骨架姿态的参数估计，建立了骨架运动模型。三维人体骨架模拟视频动作证实了该方法的高效性。
英文摘要：
To solve the problem of dynamically showing clothes effect, based on the automatic extraction of the three-dimensional human skeleton, the 3D human skeleton dynamic modeling is introduced. The conformal geometric algebra method is used to de scribe the joints＇ movement and show all kinds of motions by the change of adjacent joint points＇ position. The human skeleton gesture is driven by the joint points to get the key frames and interpolation between frames to realize gesture sequences. We se- lect spiral movement operator to realize the parameter estimation of 3D body skeleton posture based on 2D video sequences and further get the better match between 3D human skeleton and the corresponding video. Finally, fast and efficient algorithm is proved.
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