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Image-morphing techniques are often employed to generate fluid transitions between two reference images. Many algorithms have been proposed in this area. Existing warp functions used in morphing algorithms are one-to-one. Consequently, when some features are visible in only one of the reference images, “ghosting” problems will appear in some in-between images. In addition, since the control features...
In this paper, a new method for computing the intersection of a ray and a NURBS surface is presented. The method is based on Newton iteration for a system of nonlinear equations, but its convergence is accelerated by using the polynomial extrapolation. Additionally, a ray is defined to be the intersection of two planes, which are usually non-orthogonal, so that theoperations are significantly reduced...
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