中文摘要：

针对帧间差分法容易产生的空洞效应，本文提出一种基于改进帧间差分的运动目标检测算法。首先利用原始帧差分提取潜在的运动目标区域，继而提取的区域内进行vibe（visual background extractor）算法的前景匹配，再次提取运动目标，以弥补空洞现象，实验结果表明本文算法能完整的提取运动目标。

英文摘要：

To solve the hole effect caused by frame＇difference algorithm, an improved frame difference algorithm has been provided. Firstly, potential moving object area is extracted by original frame difference, then moving object is detected by vibe algorithm in the potential area again to make up for the hole effect. Experiment results show that complex moving objects can be accurately extracted.