How to do Easy Motion Capture

Hello my dear Blender Friends. Can you help me please?
I want animate my model but that move is specific and original for her.
Can I somehow make easy motion capture? I dont have any sensors.
Exist any program for detect move from video? . you know that I insert video with some person for expample in move and in this program I can select specific points an then I can convert it to MC?
for Answers Thank You