基于垂直投影直方图的视频中人体前景提取方法

Human Foreground Extraction Method in Video Based on Characteristics of Vertical Projection Histogram

在视频流中,当两人或者更多人在一起行走且距离很近时,我们采用常用的方法得到前景目标,提取特征时,往往会将相连的多人检测为同一个前景。为了解决这一问题,本文以提取前景目标中相连两人为研究对象,阐述了一种基于垂直投影直方图的人体前景提取方法。按照本文的判别规则,如果检测出为两人,则重新划分每个人体的前景区域,并且用矩形框进行标记。实验结果表明,该方法可以有效地将相连在一起的前景目标分割出来。

In the video stream,If common methods are used to obtain the foreground object and extract features,frequently people will be detected as the same foreground when two or more people walking together very close.In order to solve this problem,This paper presents a human body foreground extraction method based on vertical projection histogram and the two connected body of the extracted foreground objects will be studed.Accordance with the discrimination rules in the paper,the area of each body will be re-divided and marked with rectangles if there are two body.Experiments show that this method can effectively divide the connected objects.