By using the statistic properties of the correlation coefficient, a curve correlation coefficient is calculated, and then the matching point is obtained through evaluating it's derivative function.
利用相关系数在真实匹配点附近的统计特性，通过对相关系数进行曲线拟合，根据其一阶导数确定最大相关系数所在的位置，快速得到亚像素匹配点。
The statistic curve of HDV system packet loss rate positively correlates to the curve of network layer, but the correlation coefficient is only about 0.83.
高清视频应用的丢包率与网络层丢包率的统计曲线模态正相关，但相关系数仅在0.83左右。
Applying this method to earthquake sequence, the events with similar focal mechanism can be grouped, and temporal average correlation coefficient curve of earthquake sequences can be obtained.
据此对地震序列事件进行聚类分组以及计算序列事件的滑动平均相关系数时序曲线。
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