Scheduled Fourier volume morphing
Scheduled Fourier volume morphing
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DOI：
10.1145/133994.134004
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发表时间：
1992-07
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通讯作者：
J. Hughes
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作者：
J. Hughes
我们描述了一种易于实现且计算上可行的方法，用于从一个采样体积模型平滑过渡到另一个采样体积模型。这会引起两个模型的等值面之间的过渡。该技术基于在两个体积模型的傅里叶变换之间进行平滑插值，然后将结果转换回来。在某些情况下，转换后的数据集之间的线性插值会产生不令人满意的结果。我们使用这样的插值时间表：逐渐去除第一个模型的高频，将低频插值到第二个模型的低频，并逐渐添加第二个模型的高频。这样的调度会产生更令人满意的结果。我们给出了几个例子并简要评论了预处理模型，以使变形更加平滑。
We describe an easily implemented and computationally feasible method for smoothly transitioning from one sampled volumetric model to another. This induces a transition between isosurfaces of the two models. The technique is based on interpolating smoothly between the Fourier transforms of the two volumetric models and then transforming the results back. A linear interpolation between the transformed datasets yields unsatisfactory results in some cases. We use a schedule for the interpolation in which the high frequencies of the first model are gradually removed, the low frequencies are interpolated to those of the second, and the high frequencies of the second model are gradually added in. Such scheduling yields more satisfactory results. We give several examples and comment briefly on preprocessing models to make the morphing smoother.