计算机科学 ›› 2017, Vol. 44 ›› Issue (3): 59-62.doi: 10.11896/j.issn.1002-137X.2017.03.015
袁斌
YUAN Bin
摘要： 大部分Level-Set演化模型基于平均曲率或梯度,这对去除3D数据的噪声时保持线状特征是不利的;在解Level-Set演化方程时一般采用迎风格式,精度较低。设计了基于曲率差的高阶演化方程以及基于B样条和中心差分的混合GPU解法器。实验结果表明,基于曲率差的演化方程能够在光顺数据时保持线状特征。
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