一种基于双椭圆模型的视频人数统计方法

Method of Video People Counting Based on Double_ellipse Model

一种基于双椭圆模型的视频人数统计方法针对环境和背景较复杂的情况,实现了较密集人群和部分遮挡的人流数统计。首先提取运动目标的外形轮廓,将外形拟合成椭圆,再根据先验知识在轮廓椭圆内拟合头部椭圆。如果外形和头部都能成功拟合成椭圆,就能简单确定出一个人体。当人群密集时,先将目标进行分割后,再进行基于双椭圆模型的目标识别。本方法适合镜头的垂直模式、倾斜模式、近景模式、远景模式,能够在鉴别人体与非人体的基础上统计人数。分别对静态图像和视频序列进行了仿真,结果表明,该方法能够准确地进行人数统计。

A method of people counting in videos based on the double_ellipse mode can calculate the number of people of crowed and partially occluded aims at the situation where inviroment and background are complex.First Abstract outline of the moving object and shape the outline to a ellipse,then fitting the ellipse of a head in the outline according to prior knowledge.If the shape and the head all can be successfully fitted to ellipses,we can simplely determine a human body.When crowed is dense,separate the moving target in advence,then recognize them.This method is suitable for vertical mode,tilt mode,distant view mode,nearby view mode of camera lens,and can count the number of people on the basis of identifying the human body and the non-human body.