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We present a novel technique for pre-processing medical images based on the feature that medical image data obtained from CT scanner are regional sampled values. The new technique first establishes mapping relation between regional sampled values and point sampled values, then adopts cubic spline curve fitting to convert the regional sampled values to more precise approximations of point sampled values...
The magnitudes of the endpoint tangent vectors are optimized in the Hermite interpolation process so that the curve length of the optimized geometric Hermite curve is a minimum. The tangent angle constraints ensuring an optimized geometric Hermite curve geometrically smooth are discussed. For the cases in which the given tangent vectors do not satisfy the constraints, new methods for constructing...
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