Estimators of the number of objects per area unbiased by edge effects.
Estimators of the number of objects per area unbiased by edge effects.
复制标题
每个区域的对象数量的估计不受边缘效应的影响。
DOI：
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发表时间：
1978
期刊：
影响因子：
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通讯作者：
H. Gundersen
中科院分区：
文献类型：
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作者：
H. Gundersen
本文概述了在平面样本中获得不受边缘效应影响的剖面数密度估计的原则。讨论了实施《准则》的各种实际问题。没有一种方法代表了关于轮廓和框架的假设的独立性以及框架外部信息的独立性的理想组合。通常用于确定数密度的计数规则是有偏见的，也是不必要的复杂的。对于体力劳动，只有两个公正的原则适用。它们之间的选择主要取决于它们实施的难易程度。
A survey is given of principles for obtaining an estimate of the numerical density of profiles not biased by the edge effect in planar samples. Various practical problems of implementation of the principles are discussed. None of the methods represent the ideal combination of independence of assumptions concerning both profiles and frame as well as independence of information external to the frame. The counting rules usually employed in the determination of numerical density are biased and also unnecessarily complicated. For manual work only two unbiased principles apply. The choice between them is mainly determined by the ease by which they are implemented.