因此本文结合两种方法，采用稀疏光流法进行计算。
Thus, we adopt sparse optical flow approach by combing that two approaches in this paper.
为了满足实时跟踪控制的需要，提高两幅图象之间对应点的匹配效率，提出了稀疏光流算法。
Sparse optical flow method was proposed for satisfying the requirement of real-time control and improving the efficiency of matching corresponding points in two im ages.
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