Same question in Stackoverflow
I have a video which has frames as shown in my previous image in this question.
Detect markers on a face and find their coordinates
I detected these markers and numbered them as shown in the image given below:
My problem is as follows. After I have detected markers in one frame I need to detect them in another frame and find out how much the marker has moved from its previous location. However on using my code again on the second frame I sometimes in some frames get a different numbering among markers and hence I am not able to track markers from one image to another. Also detecting the markers in each image becomes a cumbersome task and takes a lot of time for a video which has around 200 frames.
How can I track these markers over images so as to know how much a particular marker has moved between frames or simply how can I number these markers such that the numbering never changes viz, the marker numbered 60 remains marker number 60 from frame 1 to frame 200.
As a side question is there a way to actually decrease the processing time such that I don't have to detect the face and eyes in each and every frame (Please refer to the image given in the link in my previous question it makes things clearer).
