在中心极限定理和逼近理论的基础上，提出了一种用三角滤波器的级联来实现高斯滤波器的新方法。
On the basis of the central limit theorem and approximation theory, a new implementation of the Gaussian filter by cascaded triangle filters is presented.
解决了这三个问题就可以得到基于轮廓数据的三角网格模型，它是原始轮廓对应的曲面的分片逼近表示。
The result after solution of the correspondence, branching and tiling problems is a triangular mesh that is a piecewise planar approximation of a surface consistent with the contours.
本文主要考虑在一类各向异性网格(我们称之为gatm)下用一些三角形单元逼近二维空间中二阶椭圆边值问题。
Some triangular elements are considered to solve the two-dimensional and second-order elliptic boundary value problem on a class of anisotropic meshes (we call them GATM).
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