Answers.Body: <p>After effects can definitely track 2D motion and allow you to export x,y coordinate pairs, but it does not work in realtime.  You would have to import the videos, then track each object (and correct for any mis-tracking) then export the tracked data as text.</p>
  
  <p>This probably isn't the best tool for the job - I'm guessing there are better realtime motion tracking systems for what you need.</p>
  
  <p>You can read about how 2D tracking works here:
  <a href="https://helpx.adobe.com/after-effects/using/tracking-stabilizing-motion-cs5.html" rel="nofollow noreferrer">https://helpx.adobe.com/after-effects/using/tracking-stabilizing-motion-cs5.html</a></p>
  
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2017-09-02T22:15:53.050Z
Answers.LastActivityDate: 2017-09-02T22:15:53.050Z
Answers.UserDisplayName: tomh
Body: <p>I am an animal behaviorist and AfterEffects (CC) may be the key to solving my unique problem. Let's say I have a video of six small animals housed individually in circular arenas.</p>
  
  <p>Can AfterEffects:</p>
  
  <ul>
  <li>Track each animal simultaneously in real time or track them when the
  footage is sped up. The latter bit is important since I have hours of
  footage to track and it would be nice if I could expedite this
  process.</li>
  <li>Export or copy/paste the 2D positional data (x,y) to a spreadsheet.</li>
  </ul>
  
  <p>I know that AfterEffects is capable of tracking a fixed point when the camera is moving. However, I am interested to know if the app can perform the inverse of that scenario: static camera position with multiple moving objects.</p>
  
  <p>Thank you!</p>
  
Comments.ContentLicense: CC BY-SA 3.0
Comments.CreationDate: 2017-09-04T08:26:08.003Z
Comments.Text: You might want to investigate openCV, it's used a lot in scientific applications. http://opencv.org/
Comments.UserDisplayName: stib
Tags: <after-effects><adobe><motion><tracking>
Title: Track Multiple Moving Objects Simultaneously
UserDisplayName: Tavaro Evanis
ThreadText: # Track Multiple Moving Objects Simultaneously
  
  (Asked by: username_0 on 2017-09-02)
  
  I am an animal behaviorist and AfterEffects (CC) may be the key to solving my unique problem. Let's say I have a video of six small animals housed individually in circular arenas.
  
  Can AfterEffects:
  
  * Track each animal simultaneously in real time or track them when the
    footage is sped up. The latter bit is important since I have hours of
    footage to track and it would be nice if I could expedite this
    process.
  * Export or copy/paste the 2D positional data (x,y) to a spreadsheet.
  
  I know that AfterEffects is capable of tracking a fixed point when the camera is moving. However, I am interested to know if the app can perform the inverse of that scenario: static camera position with multiple moving objects.
  
  Thank you!
  
  **Tags:** after-effects, adobe, motion, tracking
  
  > **Comments:**
  > **username_1**: You might want to investigate openCV, it's used a lot in scientific applications. http://opencv.org/  
  
  ---
  
  ## 1 answers
  
  ### Answer by username_2 on 2017-09-02. Score: 1
  
  After effects can definitely track 2D motion and allow you to export x,y coordinate pairs, but it does not work in realtime. You would have to import the videos, then track each object (and correct for any mis-tracking) then export the tracked data as text.
  
  This probably isn't the best tool for the job - I'm guessing there are better realtime motion tracking systems for what you need.
  
  You can read about how 2D tracking works here:
  <https://helpx.adobe.com/after-effects/using/tracking-stabilizing-motion-cs5.html>
  
  
  ---
  
  