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The sixth order compact approximation described in this article is a kind of Richardson extrapolation-based method, which uses two different scale grids to improve the order of accuracy of numerical solutions. Since the extrapolated solution with higher order accuracy is on the coarse grid, we consider to use completed Richardson extrapolation to get a higher order solution on the entire fine grid...
A novel method to reconstruct object boundaries with geodesic circular arc is proposed in this paper. Within this framework, an energy of circular arc spline is utilized to simultaneously arrange and interpolate each member in the set of sparse unorganized feature points from the desired boundaries. A general form for a family of parametric circular arc spline is firstly derived and followed by a...
Glomerulus extraction is an important step for automatic analysis of the kidney diseases in the computer-aided diagnosis system. A method based on searching the best fitting curve is proposed based on the characteristics of the renal biopsy images in microscope. This method can solve the problem of the large defect of the enhanced boundary, which lead to unsuccessful extraction. Firstly, a parametric...
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