Mapping of Three-Dimensional (3D) Structure of Ear Canal and Auricle
Mapping of Three-Dimensional (3D) Structure of Ear Canal and Auricle
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耳道和耳廓三维 (3D) 结构测绘
DOI：
10.11239/jsmbe.57.181
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发表时间：
2019
影响因子：
--
通讯作者：
若山俊隆
中科院分区：
文献类型：
--
作者：
高橋優太;石山貴之;庄司美咲;川崎太夢;東口武史;若山俊隆
我们展示了三维（3D）结构的映射，以确定耳道和耳廓的表面轮廓的细节。为了测量耳道内表面轮廓，我们研制了一种用于耳道内表面轮廓测量的光学扫描仪，并阐明了锥束的光学特性。测量7 mm高密度聚乙烯环规的标准偏差为±0.05 mm，并与接触式三维表面轮廓测量方法进行了比较。两种方法之间的差异为-0.15 mm，半峰全宽为±0.58 mm。此外，我们不仅实现了耳道的三维映射，而且还使用基于运动学的关节臂耳廓。我们的研究提供了三维映射，以确定从鼓膜到耳廓的表面轮廓，而不使用印模材料。
We demonstrate mapping of three-dimensional (3D) structure to determine details of surface profiles of the ear canal and auricle. In order to measure the surface profile of the ear canal, we developed an optical scanner for inner surface profile measurement, and clarified the optical properties of the cone beam. When the standard deviation of 7-mm ring gauges made of high-density polyethylene was measured, the error of measurement was±0.05 mm. Then, we compared the three-dimensional mapping of the ear canal between our method and a contact three-dimensional surface profile measurement method. The difference between the two methods was-0.15 mm, and the full width at half maximum was±0.58 mm. Moreover, we achieved three-dimensional mapping for not only the ear canal, but also the auricle using an articulated arm based on kinematics. Our research provides three-dimensional mapping to determine surface profiles from the eardrum to auricle, without using impression materials.