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首页> 外文会议>IFIP First International Workshop on Entertainment Computing (IWEC 2002) May 14-17, 2002 Makuhari, Japan >CGA SYNTHESIZER INTERPOLATING AND EXTRAPOLATING MOTION DATA
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CGA SYNTHESIZER INTERPOLATING AND EXTRAPOLATING MOTION DATA

机译：CGA合成器内插和外插运动数据

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摘要

The author proposes a computer-graphics animation tool which composes a mixed pattern of two dance motions at any rate, or which interpolates and extrapolates a new dance pattern. Quantitative analyses on human KANSEI, especially on the relationship between human motions and subjective impressions brought about can be carried out through the synthesizer. A magnetic motion capture system with sixteen sensors and a pair of data gloves with eighteen sensors each were used to obtain various types of dance motions. Time-series changes of each joint angles were estimated first from the motion data, and Fourier transformation was adopted to obtain the spectrum amplitude with DC component and the phase spectrum of each joint. Then, the differences between two kinds of dance motions at each same joints were extracted in the frequency domain, and the differences were increasingly or decreasingly weighted according to users' input score. Finally, every angle motions were synthesized through inverse Fourier transformation with careful operation of the phase information of each joint angles, which is producing and keeping harmony among joint motions in a computer-graphics animation.
机译：作者提出了一种计算机图形动画工具，该工具可以任意组合两种舞蹈动作的混合模式，或者内插和外推新的舞蹈模式。可以通过合成器对人体KANSEI进行定量分析，尤其是对人体运动与主观印象之间关系的定量分析。使用具有16个传感器的磁运动捕获系统和一对分别具有18个传感器的数据手套来获取各种类型的舞蹈运动。首先从运动数据中估计出每个关节角度的时间序列变化，然后采用傅立叶变换获得具有直流分量的频谱幅度和每个关节的相位谱。然后，在频域中提取每个相同关节处的两种舞蹈动作之间的差异，并根据用户的输入分数对差异进行加权或递增。最后，通过仔细地操作每个关节角度的相位信息，通过逆傅立叶变换合成每个角度运动，从而在计算机图形动画中产生并保持关节运动之间的和谐。

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