In this appendix we present the results obtained by applying our method to the problem of boundary detection in natural images. We show that we can outperform state-of-the-art techniques also on this task. Many analogies connect the centerline detection to the contour detection problem. First, in both cases we want to extract one dimensional curves form images. Second, in both situation the exa...

Even with the recent advances in multidetector computed tomography (MDCT) imaging techniques, detection of calcified coronary lesions remains a highly tedious task. Noise, blooming and motion artifacts etc. add to its complication. We propose a novel learning-based, fully automatic algorithm for detection of calcified lesions in contrastenhanced CT data. We compare and evaluate the performance ...

Abstract In contrast to unstructured meshes, structured meshes yield faster simulation results for bio-medical simulations, but are very time-consuming create. A preprocessing step in the generation of is manual construction a blockstructure approximating vessel. Here, we present an automatic centerline calculation and reduce user effort time mesh generation. The detected as points between oppo...

In this paper, an algorithm for the approximate computation of the centerline of tubular, 3D, arbitrarily shaped geometries is presented. It is based solely on the mesh connectivity, which is used to build approximate local transversal sections from the element edges. The centerline is generated by calculating the centroid of adjacent sections and connecting them properly. The algorithm is gene...

Effect of rheological property on the migration and alignment three interacting particles in Poiseuille flow Giesekus fluids is studied with direct-forcing fictitious domain method for Weissenberg number (Wi) ranging from 0.1 to 1.5, mobility parameter 0.7, ratio particle diameter channel height 0.2 0.4, solvent viscosity total being 0.3 initial distance (y0) centerline 0 0.2. The results showe...

Based on Spatial structure of the roadway, threedimensional geometric modeling of the roadway has been studied.It is separately gived that a detailed analysis of roadway centerline modeling, roadway cross-section modeling, roadway intersection modeling and an efficient data structure. Using VC++ and openGL, a specific test was carried out.This paper introduces a relevant algorithm in which the ...

The sliding-mode controller (SMC) for the lateral motion control problem of Four Driving-Steering Wheels (4DW/SW) vehicle is presented in this paper. The lane centerline tracking is the main control performance. The dynamic model of the vehicle has been taken into account. Closed-loop robustness to uncertainties is achieved. The lane centerline tracking is achieved using look-ahead techniques. ...

In this paper we consider the problem of blood vessel segmentation in retinal images. After enhancing the retinal image we use green channel of images for segmentation as it provides better discrimination between vessels and background. We consider the negative of retinal green channel image as a topographical surface and extract ridge points on this surface. The points with this property are l...

Introduction: One of the main problems with implantation stent-graft (STG) in abdominal aortic aneurysm (AAA) remains its proper fit. Minor differences distances from relevant structures can result life-threatening complications. This article aims to show problem shortening during implantation. occurs case significant tortuosity aorta vessels and iliac arteries. Our study has found a correlatio...