文中的曲面或用参数方程表达或用符号距离函数表达。
In this paper, the surface is presented with a parameterized equation or a signed distance function.
符号距离函数重构是水平集方法中必不可少、且相当费时的步骤。
The reconstruction of signed distance function (SDF) is an imperative and time-consuming step in level set method.
该模型采用二值化水平集方法实现，避免了传统实现方法水平集函数需要重新初始化为符号距离函数，从而导致稳定性差、计算量大、实现复杂等缺点。
The model was implemented by level set method with a binary level set function to reduce the expensive computational cost of re-initialization of the traditional level set function.
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