First, SURF features are extracted from preprocessing images and matched by using the nearest neighbor method.

首先，对经预处理后的序列图像提取SURF特征点，采用最近邻法匹配特征点；

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Comparing with the nearest neighbor method, the presented method needs less cost and memory space as the representative samples are only a little part of the training set.

而支撑点仅占全部训练样本的一部分，所以相比最近邻方法具有较小运算量和存储量的优点。

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Comparing with the nearest neighbor method, the presented method needs less cost and memory space as the representative samples are only a little part of the training set.

而支撑点仅占全部训练样本的一部分，所以相比最近邻方法具有较小运算量和存储量的优点。

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