Non-invasive imaging methods applied to neo- and paleo-ontological cephalopod research
| Autor: | Erik Rybacki, Stefan Zachow, Robert Lemanis, S. R. Gerden, Rico Schellhorn, René Hoffmann, Helmut Keupp, Julia A. Schultz |
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| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Noninvasive imaging
medicine.diagnostic_test biology business.industry Surface scanning lcsh:QE1-996.5 lcsh:Life Pattern recognition Computed tomography Object (computer science) biology.organism_classification Cephalopod Study Object lcsh:Geology lcsh:QH501-531 Optics lcsh:QH540-549.5 medicine Maximum size Artificial intelligence lcsh:Ecology business Ecology Evolution Behavior and Systematics Earth-Surface Processes |
| Zdroj: | Biogeosciences Biogeosciences, Vol 11, Iss 10, Pp 2721-2739 (2014) |
| ISSN: | 1726-4189 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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