Zntroduction Recently, we have demonstrilted the capability of retrospectively mapping a slice image into rin anatomical reference volume (i.e. map-slice-to-volume, MSV) from the same subject using a simple rigid body transformation of $x degrees of freedom (DOF) [l]. In practice, deformation in a sliQe image is often presented as a nonlinear warping problem that his not limited to the imaging ...

PURPOSE In the present project, the virtual reconstruction of digital osteomized zygomatic bones was simulated using different methods. MATERIALS AND METHODS A total of 15 skulls were scanned using computed tomography, and a virtual osteotomy of the left zygomatic bone was performed. Next, virtual reconstructions of the missing part using mirror imaging (with and without best fit registration...

background: in nuclear medicine application often it is required to use computational methods for evaluation of organ absorbed dose. monte carlo simulation and phantoms have been used in many works before. the shape, size and volume in organs are varied, and this variation will produce error in dose calculation if no correction is applied. materials and methods: a computational framework for co...

The relationship between allometry and sexual dimorphism in the human craniofacial complex was analyzed using geometric morphometric methods. Thin-plate splines (TPS) analysis has been applied to investigate the lateral profile of complete adult skulls of known sex. Twenty-nine three-dimensional (3D) craniofacial and mandibular landmark coordinates were recorded from a sample of 52 adult female...

the spline finite strip method (s.f.s.m.) for buckling analysis of plates and plate assemblies subjected to longitudinal compression and bending, transverse compression as well as shear is described. the method allows for the boundary conditions. local buckling coefficients of plates with different boundary conditions under compression, bending and shear are calculated. convergence studies with...

Since 1982 the dual reciprocity boundary element method was published by Nardini & Brebbia, it was used to solve many engineering problems successfully. However, how to choose the radial basis function is an important issue, which was discussed recently and many researches were published. M.A. Golberg & C.S Chen (1994) provided a mathematical foundation for ad-hoc ‘1+r’ and suggested that thin ...

The spline finite strip method (S.F.S.M.) for buckling analysis of plates and plate assemblies subjected to longitudinal compression and bending, transverse compression as well as shear is described. The method allows for the boundary conditions. Local buckling coefficients of plates with different boundary conditions under compression, bending and shear are calculated. Convergence studies with...

In the present work, the numerical solution of two-dimensional variable-order fractional cable (VOFC) equation using meshless collocation methods with thin plate spline radial basis functions is considered. In the proposed methods, we first use two schemes of order O(τ2) for the time derivatives and then meshless approach is applied to the space component. Numerical results obtained ...

An efficient surface reconstruction strategy is presented in this study, which able to approximate non-convex sets of target points (TPs). The approach split two phases: (a) the mapping phase, making use shape preserving method (SPM) get a proper parametrization each sub-domain composing TPs set; (b) fitting where patch fitted by means suitable non-uniform rational basis spline (NURBS) consider...

This article has shown the simulation change after moving the landmarks within medical image by applying 3-dimension thin plate spline through the following 3 steps: The first step is to write the program to open and display 3-dimension medical images by using Borland C++ Builder 6 as the compiler along with OpenGL as the engine to display the images. The second step is to distort 3 dimension i...