Semilandmarks: a method for quantifying curves and surfaces
Semilandmarks: a method for quantifying curves and surfaces
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DOI：
10.4404/hystrix-24.1-6292
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发表时间：
2013-01-01
影响因子：
1.5
通讯作者：
Mitteroecker, Philipp
中科院分区：
文献类型：
--
作者：
Gunz, Philipp;Mitteroecker, Philipp
使用几何形态计量学的定量形状分析基于标志坐标的统计分析。然而，许多结构无法使用传统地标进行量化。半地标使得量化二维或三维同源曲线和曲面成为可能，并将其与传统地标一起分析。这里我们首先介绍滑动半地标的概念，并讨论该方法的应用和局限性。在第二部分中，我们展示了如何使用滑动半地标算法来估计不完整样本中的缺失数据。
Quantitative shape analysis using geometric morphometrics is based on the statistical analysis of landmark coordinates. Many structures, however, cannot be quantified using traditional landmarks. Semilandmarks make it possible to quantify two or three-dimensional homologous curves and surfaces, and analyse them together with traditional landmarks. Here we first introduce the concept of sliding semilandmarks and discuss applications and limitations of this method. In a second part we show how the sliding semilandmark algorithm can be used to estimate missing data in incomplete specimens.