is it possible to detect particular points on a video uploaded in matlab?

I would like to find some points (for example the two points of the shoulder of a man) in a video uploaded in matlab in which there is a person in movement. how is it possible to make it? exploiting the different colors in moviment?

[darova]

DOes a man have any markers on shoulders?

[Luigi Stragapede]

no, it is a simple video of a man with a t-shirt

[darova]

Can you put some markers on the man?

[Luigi Stragapede]

Do you mean when the man record the video in order to have these markers on the video recorded or during the post processing in matlab?

[darova]

I mean during recording the video

[Luigi Stragapede]

yes it is possible.