在匹配跟踪算法中，模板更新策略是跟踪成败的关键。
Template update method is the key of the success of the matching and tracking algorithm.
文章首先详细分析了固定背景下的传统匹配跟踪算法。
Firstly, the article introduces the traditional matching tracking algorithm detailedly in the fixed background.
利用正交匹配跟踪算法求最小零范数解，在变换域中用近邻法判断测试数据的类别。
In the test stage, the sensing matrix is projected onto the test vector, and the minimum l0-norm solution is computed with Orthogonal Matching Pursuit (omp) algorithm.
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