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Application of modern tomographic imaging methods for the investigation of the internal anatomy of mysticete periotica and the evolution of low frequency hearing in baleen whales

应用现代断层扫描成像方法研究须鲸的内部解剖结构和低频听觉的进化

基本信息

批准号：
231474319
负责人：
Professor Dr. John Banhart
金额：
--
依托单位：
Fachgebiet Struktur und Eigenschaften von Materialien
依托单位国家：
德国
项目类别：
Research Grants
财政年份：
2012
资助国家：
德国
起止时间：
2011-12-31 至 2017-12-31
项目状态：
已结题

来源：
https://gepris.dfg.de/gepris/projekt/231474319?language=en
关键词：
Application modern tomographic imaging methods

项目摘要

In this project x-ray and neutron tomography will be used to investigate non-destructively the internal anatomy of ears (mysticete periotica) in fossils of baleen whales (in cooperation with the DFG-application: The internal anatomy of mysticete periotica and the evolution and development of low frequency hearing in baleen whales).Our aim is to develop and optimise tomographic methods in order to obtain biometric data about the baleen whales ear´s anatomy which will be analysed with the help of palaeontologists for getting deep insights into the evolution and development of low-frequency hearing. Biometric parameters will be identified with the 3D images that are characteristic for the specimen and that can be used for a thorough description of the ear geometry. Special software will be implemented that extracts complex biometric data. The obtained data will be provided to palaeontologists for further analysis.The complementary use of different imaging techniques based on neutrons and x-rays will contribute to enhance image contrast and to obtain additional structural information from large samples that allows for the extraction of relevant anatomical features which are hardly accessible by conventional tomographic methods. A general aim of the project is to investigate the applicability of novel imaging methods like laminography (in case of large samples) and phasecontrast tomography (in case of weak contrast) in the research of paleontological objects. These could strongly influence future research on this field and could strength the future collaboration between the Museum für Naturkunde Berlin and the Technical University Berlin.

本项目将利用x射线和中子层析成像技术对须鲸化石的耳朵内部解剖（神秘骨膜）进行无损研究（与dfg项目合作：须鲸的神秘骨膜内部解剖和低频听力的进化和发展）。我们的目标是开发和优化层析成像方法，以获得有关须鲸耳朵解剖结构的生物特征数据，这些数据将在古生物学家的帮助下进行分析，以深入了解低频听力的进化和发展。生物特征参数将与标本特征的3D图像进行识别，并可用于对耳朵几何形状的全面描述。将实施特殊的软件来提取复杂的生物特征数据。获得的数据将提供给古生物学家作进一步分析。基于中子和x射线的不同成像技术的互补使用将有助于增强图像对比度，并从大型样本中获得额外的结构信息，从而可以提取传统断层扫描方法难以获得的相关解剖特征。该项目的总体目标是研究新的成像方法，如层析成像（在大样本的情况下）和相对比断层扫描（在弱对比的情况下）在古生物物体研究中的适用性。这些可能会对该领域的未来研究产生重大影响，并可能加强柏林<s:1>自然博物馆和柏林工业大学之间的未来合作。