Identification of bird taxa species in ancient Egyptian mummies: Part 2, a qualitative evaluation of the utility of CT scanning and 3D printing
Identification of bird taxa species in ancient Egyptian mummies: Part 2, a qualitative evaluation of the utility of CT scanning and 3D printing
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古埃及木乃伊中鸟类分类群的鉴定：第 2 部分，CT 扫描和 3D 打印效用的定性评估
DOI：
10.1016/j.jasrep.2022.103668
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发表时间：
2022
期刊：
影响因子：
0.9
通讯作者：
Bibb R
中科院分区：
文献类型：
--
作者：
Bibb R
古埃及人认为，以神的形象创造的物品，无论是动物还是混合形式，由人造或有机材料制成，可以作为一种交流装置，有效地使奉献者和神之间的对话成为可能。藏在亚麻布包装里的动物木乃伊是受欢迎的祈愿祭品。这些木乃伊现在被用非破坏性技术进行研究，如三维计算机断层扫描(CT)。利用医学上开发的技术，可以从CT数据中生成动物木乃伊内骨骼的三维计算机模型。这些模型可以用来制作骨骼的可视化效果，但也可以通过3D打印进行物理复制。在扫描和3D打印阶段都可以做出许多参数和决定，这些参数和决定会影响最终实物人工制品的质量以及它们与真实骨骼的相似程度。本研究旨在探讨不同CT扫描视野、3D打印工艺和材料的影响，并定性评价3D打印的复制骨在多大程度上准确地再现了真实骨骼的可识别特征。进行了两次不同的CT扫描，并使用三种不同的工艺--材料挤压、立体光固化和PolyJet建模--生产了30块3D打印的复制骨。不同的材料被用来研究颜色和透明度的影响。这些复制品被提供给五名鸟类解剖学专家，他们被要求评估复制品，并用手中骨头的方法评论它们在物种鉴定中的作用。结果表明，透明材料不如均匀中性颜色的材料有用。由于表面更光滑，用更薄的层制作的复制品更受欢迎。总体而言，PolyJet的模型复制品排名最高。由更高分辨率的CT数据(较小的视野)制成的复制品产生了更好的复制品。这项研究对从考古遗迹中制作动物解剖的3D打印复制品的做法进行了严格的评估，并表明了这种做法在物种鉴定中的实用性。
Ancient Egyptians believed that objects created in the image of a god, in either animal or hybrid form, from artificial or organic materials could act as a communication device, effectively enabling a dialogue between the devotee and the deity. The mummified remains of animals concealed within linen wrappings were popular votive offerings. These mummies are now investigated using non-destructive techniques such as three-dimensional Computed Tomography (CT). Using techniques developed in medicine it is possible to generate three-dimensional computer models of the bones within animal mummies from CT data. These models can be used to produce visualisations of the bones but can also be physically reproduced by 3D Printing. There are a number of parameters and decisions that can be made at both the scanning and 3D printing stages that can affect the quality of the final physical artefacts and how closely they resemble the real bones. This study aimed to explore the effects of different CT scanning Field of View, 3D printing processes and materials and qualitatively evaluate the extent to which the resulting 3D Printed replica bones accurately reproduced the identifiable features of real bones. Two different CT scanning sessions were conducted and 30 3D printed replica bones produced using three different processes, material extrusion, stereolithography and PolyJet modelling. Different materials were used to investigate the effects of colour and transparency. The replicas were provided to five experts in bird anatomy who were asked to evaluate the replicas and comment on their utility for species identification by the bone-in-hand method. The results showed that transparent materials were less useful than those with a uniform neutral colour. Replicas made with thinner layers were preferred due to their smoother surface. Overall, the PolyJet modelling replicas were ranked highest. The replicas made from higher resolution CT data (a smaller Field of View) produced superior replicas. This study provides a rigorous evaluation of the practice of producing 3D Printed replicas of animal anatomy from archaeological remains and has shown the utility of the practice for species identification.
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影响因子：
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作者：
Paul F. Wilson;Janet Stott;J. Warnett;A. Attridge;M. P. Smith;Mark A. Williams
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DOI：
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发表时间：
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影响因子：
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影响因子：
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作者：
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