Different morphologic arithmetic, which forms a morphologic filter namely morphologic operator, could get different result of filtering.
采用不同的形态运算所构成的不同形态滤波器，其滤波效果是不同的。
The whole process of target detection has four step: initializing background, moving target detecting, morphologic filter and signing connected field.
通过背景初始化、运动目标检测、形态滤波和标记连通域四个步骤实现运动目标的检测。
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