Remember that depending upon how you define your zerolevel here, you also end up with negative values for potential energy.
记住这个值取决于，你怎么定义0水平，你的得到的势能，也是负值。
2
The prior region constrains the zerolevel set evolving in certain region and the prior shape pulls the curve to the ideal contour.
先验区域限制水平集在特定区域迭代，先验形状使曲线向理想轮廓演化。
3
The zerolevel of corresponding point is subtracted from sampled value to eliminate the zero fluctuation and multiplied by compensating coefficient to modify the sensitivity fluctuation.