The driving force behind fast evaluation of thin-plate splines is the fact that a sum Pn2 j=n1 λjφ(x − ξj), where φ(x) = ‖x‖ 2 log ‖x‖, can be efficiently and accurately approximated by a truncated Laurent-like series (called an outer summary) when the data sites {ξj} n2 j=n1 are clustered in a disk and when the evaluation point x lies well outside this disk. We present a means (called an inner...

It is often desirable to build a statistical emulator of a complex computer simulator in order to perform analysis which would otherwise be computationally infeasible. We propose methodology to model multivariate output from a computer simulator taking into account output structure in the responses. The utility of this approach is demonstrated by applying it to a chemical and biological hazard ...

The merging of multi-modal medical image data, typically used for applications such as surgical guidance and computer aided diagnosis, has become increasingly important. In particular, the speed by which such data can be registered is often crucial. This paper presents a novel approach based on fast Radial Basis Function evaluation using the thin-plate and biharmonic spline models. The new algo...

In landmark-based registration, radial basis function-based transformation play an important role. The compact support radial basis function based on thin-plate splines (CSTPS) is an effective function which has been used to perform interpolation in elastic registration of medical images. In this paper, the positive definite property of CSTPS is theoretically proved. Thus, the solvability of th...

In der vorliegenden Arbeit wird ein neuartiges Modell zur Modellierung des Masseeffekts von primären Hirntumoren beschrieben. Die Progression des Tumors wird mittels einer deterministischen Reaktions-Diffusionsgleichung, welche auf einem hochauflösenden, regulären Gitter diskretisiert wird, modelliert. Für die Beschreibung der raumfordernden Wirkung des Tumors wird die resultierende Verteilung ...

We present a fully automatic lung lobe segmentation algorithm that is effective in high resolution computed tomography (CT) datasets in the presence of confounding factors such as incomplete fissures (anatomical structures indicating lobe boundaries), advanced disease states, high body mass index (BMI), and low-dose scanning protocols. In contrast to other algorithms that leverage segmentations...

The residual stresses of the thin-walled injection molding are investigated in this study. It was realized that the behavior of residual stresses in injection molding parts was affected by different process conditions such as melt temperature, mold temperature, packing pressure and filling time. The layer removal method was used to measure the residual stresses at a thin-walled test sample by a...

Thin plate structures are more widely used in many engineering applications as one of the structural members. Generally, buckling strength of thin shell structures is the ultimate load carrying capacity of these structures. The presence of cracks in a thin shell structure can considerably affect its load carrying capacity. Hence, in this work, static buckling strength of a thin square plate wit...

A Subvolume-based algorithm for Ultrasound REgistration (SURE) has been developed and tested using artificially deformed in vivo ultrasound scans. SURE works in two stages, using MIAMI Fuse[1-2] software to determine a global, affine registration in the first stage before iteratively dividing the volume into subvolumes and computing local rigid registrations in the second stage. Connectivity of...