中文说明： 本文提出了计算多人使用只有单摄像机，进入或退出在区域中感兴趣。∑-△ 背景建模和减法是用来分割区域的人。背景减法为 blob 作为结果提供了连接组件。Blob CG 用来追踪并计数入境和出境的人。这还提出了用于计算两个或更多的人的方法基于 blob 大小和地板与摄像机之间的距离。人将被计算在内，如果他们通过三个地区连续。实验表明，提出的方法具有鲁棒性，并提供近似的准确计数。
English Description：
This paper presents a multiple people counting using only single camera, entering or exiting in a region of interest. Sigma-Delta background modeling and subtraction is used to segment the people from region. Background subtraction provides blobs as a result with connected component. CG of blobs was used to track and count the entry and exit of people. This paper also proposed method for counting two or more people based on blob size and distance between floor and camera. People will be counted if and only if they passed through the three regions consecutively