First we manually segment the slice ups of human heart to get profiles and smooth them by Gaussian filters. Then the uniform sampling algorithm is used to sample points from the profiles.
在对人体心脏的解剖切片进行手工分割提取心包和各腔室的轮廓并用高斯滤波器对其进行平滑后,使用均匀取样的方法对轮廓进行取样,得到的样点作为心包和腔室的拟合点。
参考来源 - 心脏三维及四维数学建模·2,447,543篇论文数据，部分数据来源于NoteExpress
通过采用对数极坐标映射，可将空间均匀取样得到的图像变换成非均匀取样的图像，从而减小冗余像素，压缩了搜索空间。
An uniform sampling image can be transformed to a space variant sampling image by log-polar coordinate mapping which reduces the searching space and redundant pixels.
酒店标识制作的配比浓度，现在的波美浓度是42度，有些太浓，酒店标识制作我们可以加水进行稀释，搅拌均匀后，取样重新进行测量。
Identify the production ratio of the concentration, the concentration is now 42 degrees Baume, and some too strong, we can be diluted with water, mixing evenly, the sample re-measured.
田间测墒时，点与点之间的距离要均匀，取样数目可以根据一定的置信水平、估值精度、变异系数做估算。
Distance between dots should be uniform in the field measurement. Sampling number should be estimated by certain believe level, estimate accuracy and variance coefficient.
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