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Studying the influence of markers arrangement on accuracy of the membrane shape mapping in the new DFD method

机译:用新的DFD方法研究标记物排列对膜形状映射准确性的影响

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The Depth from Defocus (DFD) type method was developed for visual distance measurement. It was used to determine the shape of the flaccid membrane of the extracorporeal pneumatic heart assist pump. In the previous conference paper the technique of accuracy measurement of membrane shape mapping of an artificial ventricle was presented. The study was conducted on three membrane shapes which are well mathematically described: convex, concave and flat. For all cases the rigid membrane models were designed and 3D printed. The next study focused on extending the invented technique to other models of membrane with the well-known math formulas. Two new irregularly shaped models were produced and tested. Analysis of the obtained results during the rigid membrane models tests revealed the significant effect of the markers arrangement on the membrane shape mapping accuracy. Therefore, another arrangement of markers was tested. In the paper the comparison of the results obtained for the different arrangements of markers was presented.
机译:开发了“离焦深度”(DFD)类型的方法用于视觉距离测量。它用于确定体外气动心脏辅助泵的松弛膜的形状。在先前的会议论文中,提出了一种精确测量人工心室膜形状图的技术。这项研究是对三种膜的形状进行了很好的数学描述:凸形,凹形和平坦形。对于所有情况,都设计了刚性膜模型并进行了3D打印。接下来的研究着重于利用已知的数学公式将本发明的技术扩展到其他膜模型。制作并测试了两个新的不规则形状模型。在刚性膜模型测试期间对获得的结果进行的分析表明,标记物排列对膜形状映射精度具有重大影响。因此,测试了标记的另一种布置。在本文中,比较了标记物不同排列的结果。

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