Marshall University Mathematics Colloquium
Thursday, April 22, 4:00 P.M.
Smith Hall 509
Bonnie Shook
Topological
Approaches to Fingerprint Identification
Abstract: In this talk, I will analyze the topology of different types of fingerprints in order to find a new tool to assist in computer identification. I will focus on the homology groups of the main types of fingerprints – loops, whorls, and arches – and their variations. I will examine if there are fundamental differences between the homological features of these types.
Nathan Cantrell
Cubical Homology in Medical Imaging
Abstract: Trabecular bone architecture is extremely important in early recognition of estrogen loss and osteoporosis, as loss of bone connectivity is one of the earliest signs of disease. Moreover, intense research is underway to quantify and understand the relationship between trabecular architecture and its mechanical properties for the benefit of both medicine and bio-engineering. Such a complex structure which appears as an evolutionary adaptation to the external forces acting on the bone is extremely difficult to examine quantitatively. Topology, however, may be able to reveal significant characteristics of this network. Is there a correlation between orientation and connectivity of the network and bone strength? The voxelized data produced by μ-MR or μ-CT is ideal for cubical homology, a relatively young homological method. In short, the technique uses the boundaries of cubical building blocks to expose these topological features and simplify certain information into an extremely finite amount of data. Cubical homology and computational abilities are now beginning to coalesce providing enormous implications for the cubical format of computer graphics and medical imaging.
Snacks will be served.
Next Colloquium: next Friday.