当然，你还是要找到最佳的，这里指对数据点，拟合度最高的抛物线。
And, of course, you are trying to find somehow the best. That would mean here fitting the best parabola for your data points.
文中指出，以往的一些研究者对数据采用线性拟合，只适用于特定的地区，特定的层位，而抛物线公式可以具有普遍的适应性。
It is pointed out that some researchers 'linear fitting of velocity data is only applied to a particular area or a particular formation while the parabola formulas have wide adaptability.
本文提出了一种新颖的基于抛物线拟合原理的亚像素求取算法。
A new sub-pixel algorithm based on the principle of the parabola fitting is proposed.
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