Non-invasive imaging methods applied to neo- and paleo-ontological cephalopod research
Non-invasive imaging methods applied to neo- and paleo-ontological cephalopod research
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DOI：
10.5194/bg-11-2721-2014
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发表时间：
2014-01-01
期刊：
影响因子：
4.9
通讯作者：
Zachow, S.
中科院分区：
文献类型：
--
作者：
Hoffmann, R.;Schultz, J. A.;Zachow, S.
几种非侵入性方法是当今自然科学中的常见方法。在这里，我们介绍了它们是如何应用的，并对当前头足类(古)生物学的主题做出了贡献。将从获取数据所需的时间、数据量、精度/分辨率、可研究对象的最小/最大尺寸、所需的后处理程度和可获得性等方面对不同方法进行比较。该方法主要应用于头足类贝壳的形态测量和体积测量。特别是，我们提出了一种精确计算浮力的方法。因此，头足类动物的贝壳被与不同的参照体一起扫描，这是医学中发展起来的一种方法。有必要知道参照体的体积，参照体应该与感兴趣的物体具有类似的吸收特性。精确的体积可以通过表面扫描获得。根据研究对象的尺寸，应用了不同的计算机断层扫描技术。
Several non-invasive methods are common practice in natural sciences today. Here we present how they can be applied and contribute to current topics in cephalopod (paleo-) biology. Different methods will be compared in terms of time necessary to acquire the data, amount of data, accuracy/resolution, minimum/maximum size of objects that can be studied, the degree of post-processing needed and availability. The main application of the methods is seen in morphometry and volumetry of cephalopod shells. In particular we present a method for precise buoyancy calculation. Therefore, cephalopod shells were scanned together with different reference bodies, an approach developed in medical sciences. It is necessary to know the volume of the reference bodies, which should have similar absorption properties like the object of interest. Exact volumes can be obtained from surface scanning. Depending on the dimensions of the study object different computed tomography techniques were applied.