Measurement Accuracy in 3D Electromagnetic Articulography (Carstens AG500)
Measurement Accuracy in 3D Electromagnetic Articulography (Carstens AG500)
复制标题
3D 电磁关节描记术 (Carstens AG500) 的测量精度
DOI:
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发表时间:
2008
期刊:
影响因子:
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通讯作者:
Y. Laprie
中科院分区:
文献类型:
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作者:
Christian Kroos;R. Sock;Susanne Fuchs;Y. Laprie
In this study the measurement accuracy of the 3D EMA (Electromagnetic Articulograhy) system Carstens AG500 was evaluated using an optical motion capture system (Vicon). A custom-built container fixed the positions of the EMA sensors and the optical markers and a series of movements of the container within the EMA measurement field was recorded. The results show that (a) the very small error of static position measurements does not reflect the behaviour of the system in dynamic measurements and (b) that in dynamic measurements the magnitude of the error varies substantially across the three spatial dimensions.