Counting people by face detection

Question

amir 2016-1-29

1
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/265741-counting-people-by-face-detection

编辑： Walter Roberson 2020-4-29

Hello,

So far I have detected the faces with a bounding box around people faces. I was looking for a way to count the number of boxes appeared in the video as to return the number of people. Is there anyway to do this? Thank you.

2 个评论
显示无隐藏无

Assylbek Kossov 2018-4-10

Hi, Were you succesfull if so could send the code please? I am a beginner who is stuck with this task

Harshveer Singh 2020-4-29

编辑：Walter Roberson 2020-4-29

在 MATLAB Online 中打开

After insering annotations, use a string to count the number of faces. This can be done as follows-

n= size (bbox,1);  %bbox is the bounding box & 1 represents the no. of rows in bounding box
str_n= num2str(n);
str= strcat( 'number of faces are ', str_n);
display(str);

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

Image Analyst 2016-1-29

1
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/265741-counting-people-by-face-detection#answer_207848

编辑：Image Analyst 2016-1-29

How did you do it? If you did it with bwlabel or beconncomp, you can get it from the return argument(s). If you used the Computer Vision System Toolbox example, I'm sure it's one of the returned properties.

see Brett's blog: http://blogs.mathworks.com/pick/2014/03/14/detecting-faces-in-images/?s_tid=answers_rc2

Also see this by Dima Lisin, the developer of the toolbox: http://blogs.mathworks.com/pick/2015/09/11/detect-and-track-multiple-faces/?s_tid=answers_rc2