Basic 2d motion tracking: kinetic energy and x/y position

beginners
#1

hi all,

I want to have some basic motion tracking features like:

  • kinetic energy of a blob (i guess with frame difference)
  • xy coordinates of a blob
    Are there any example about this?
    I googled and searched in the forum but i could not find anything.

thanks

#2

have a look into the oF-root/examples/computer_vision/opencvexample
that may give you a start on doing blob detection with a camera.
you could also look at using kinect and blob tracking -
there is an interesting and easy example video (its in processing but the syntax is very similar) from the most excellent Daniel Shiffman https://www.youtube.com/watch?v=E1eIg54clGo also in the book 'mastering openframeworks https://www.amazon.com/Mastering-openFrameworks-Creative-Coding-Demystified-ebook/dp/B00FDPNZ1S - chapter 10 deals with basic work with depth cameras.

#3

Hi,
ofxCv has several examples that will cover what you are asking for. Look at the ones that have either contours or flow in their name, like example-contours-following or example-flow-keypoints
hope this helps.
cheers