Yoo T S, Morse B, Subramanian K R, Rheingans P, Ackerman M J
National Library of Medicine, National Institutes of Health, Bethesda, MD 20894, USA.
Stud Health Technol Inform. 2001;81:594-600.
We describe the use of variational implicit surfaces (level sets of an embedded generating function modeled using radial basis interpolants) in anatomic modeling. This technique allows the practitioner to employ sparsely and unevenly sampled data to represent complex biological surfaces, including data acquired as a series of non-parallel image slices. The method inherently accommodates interpolation across irregular spans. In addition, shapes with arbitrary topology are easily represented without interpolation or aliasing errors arising from discrete sampling. To demonstrate the medical use of variational implicit surfaces, we present the reconstruction of the inner surfaces of blood vessels from a series of endovascular ultrasound images.
我们描述了变分隐式曲面（使用径向基插值建模的嵌入生成函数的水平集）在解剖建模中的应用。该技术允许从业者使用稀疏且不均匀采样的数据来表示复杂的生物表面，包括作为一系列非平行图像切片获取的数据。该方法本质上适用于跨不规则跨度的插值。此外，具有任意拓扑结构的形状可以轻松表示，而不会因离散采样产生插值或混叠误差。为了证明变分隐式曲面的医学用途，我们展示了从一系列血管内超声图像重建血管内表面的过程。
