3D Shape Analysis for Morphometric Evolutionary Modelling - based on 3D X-ray Tomography and Optical Scanning

Dolores Messer: Museums worldwide are digitizing their collections. This enables documentation for future generations, sharing of cultural and natural heritage among researchers all over the world, and making discoveries that are otherwise not possible.

As a part of the digitalization process, the Natural History Museum at Copenhagen is interested in obtaining accurate 3D scans of a large collection of bone specimens, primarily skulls.

This project deals with shape analysis applied to evolutionary biology in collaboration with the Center for GeoGenetics at the Natural History Museum of Denmark. We plan to scan two collections - horse teeth, and polar bear skulls - which will serve as case studies for this project.

The overall goal is to design a pipeline where archaeological bone specimens are automatically registered as 3D point clouds, and robust automatic shape analysis is performed. While working on the case studies, new methods for advanced morphometric and evolutionary shape modeling based on accurate scans of a large number of specimens will be developed. These methods will be based on millions of scan points acquired automatically, instead of 30-50 manually placed landmarks. In order to achieve a level of automation needed for fully exploiting the possibilities of digitizing the bone collections, we need to address a number of shape modeling challenges, such as e.g. the problem of missing data that arises due to the fragmentary nature of archaeological specimens. Investigations of how to automate the registration process, and how to formulate and use a shape model will be core topics of the project. We aim at developing general methods, which can be applied across the different collections and capturing modalities.

In collaboration with both CTEG Berkeley and GeoGenetics Copenhagen, we will combine the obtained evolutionary shape model to genome sequences, casting light to correlation between shape features and genome expression. The aim is to build a joint evolutionary model of morphometric and genetic traits in order to gain insights in correlation between shape and DNA.

PhD project titel: 3D Shape Analysis for Morphometric Evolutionary Modelling- based on 3D X-ray Tomography and Optical Scanning

Effective start/end date 01/06/2016 → 10/05/2020

Supervisor: Anders B. Dahl & Vedrana A. Dahl, Section for Visual Computing

PhD project by Dolores Messer

Research section: Image Analysis & Computer Graphics

Principal supervisor: Anders Dahl Bjorholm

Co-supervisor: Vedrana Andersen Dahl & Ludovic Antoine Alexandre Orlando

Title of project: 3D Shape Analysis for Morphometric Evolutionary Modelling- based on 3D X-ray Tomography and Optical Scanning

Project start: 01/06/2016 → 10/05/2020

Contact

Anders Bjorholm Dahl
Professor, Head of Section
DTU Compute
+45 45 25 39 07

Contact

Vedrana Andersen Dahl
Associate Professor
DTU Compute
+45 27 35 98 81