How to increase autrotracking precision ( or decrease "flicking" of the point mass)
LUIZ FERNANDO PANTALEAO
4 Posts
I've been trying to autotrack a person jumping and landing on the ground. My goal is to estimate the ground reaction forces that speed up or slow down the center of mass of the person (in the y direction only) while this person is in contact with the ground. I used white tape as a track marker on the person's clothes, on the torso. When I use the autotrack function, while landind the autotracking flicks too much and i get a result that does not seem precise enough. I've tried many combinations of keyframes, and change the 3 options of the autotracking paramaters many times but still can't get a ploting that looks precise. Could someone give a insight? thanks! (I used the 240fps camera of my cellphone to record the videos; and the movement happenned on a 2d plane in relation to the camera)
Re: How to increase autrotracking precision ( or decrease "flicking" of the point mass) -
LUIZ FERNANDO PANTALEAO
4 Posts
Hi, thank you for replying! Yes, i have the video. The problem is that its not only one tho... I'm doing an analysis on 4 types of parkour landings. I can show you one video so you can try it, if you can give me some tips on how you do it to make it more precise, i would appreciate a lot! (If you want, just tell me and i can send you the other 3 videos of these types of landings so you can try whatever you like to see how to increase precision in each case. Thank u!)
Re: How to increase autrotracking precision ( or decrease "flicking" of the point mass) -
Fernando Ferro
14 Posts
this is a very small image size (640x480px) and a standard speed (30fps) video (not a 240fps). There is no way to track a moving object without "flicking" when each pixel represents so far distance in the real world.
