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Tracker Video Analysis and Modeling Tool
written by Douglas Brown
Available Languages: English, Spanish, Chinese, Danish, French, German, Italian, Portuguese, Greek, Czech, Arabic, Finnish, Korean, Swedish, Hungarian, Dutch, Hebrew, Indonesian, Slovak, Thai, Malay, Polish, Turkish
The Tracker Video Analysis and Modeling Tool allows students to model and analyze the motion of objects in videos. By overlaying simple dynamical models directly onto videos, students may see how well a model matches the real world. Interference patterns and spectra can also be analyzed with Tracker.

Tracker 5.1 installers are available for Windows, Mac OS X, and Linux and include a Java runtime and Xuggle video engine.
Tracker is an Open Source Physics tool built on the OSP code library. Additional Tracker resources, demonstration experiments, and videos, can be found by searching ComPADRE for "Tracker."

Additional Tracker resources including Tracker help and sample videos are available from the Tracker home page (link below).
http://physlets.org/tracker/
Subjects Levels Resource Types
Education Practices
- Curriculum Development
= Laboratory
- Instructional Material Design
- Technology
= Computers
= Multimedia
General Physics
- General
- Measurement/Units
- Lower Undergraduate
- High School
- Upper Undergraduate
- Instructional Material
= Activity
= Interactive Simulation
= Laboratory
= Model
- Tool
= Software
- Audio/Visual
= Movie/Animation
Intended Users Formats Ratings
- Learners
- Educators
- application/java
  • Currently 4.7/5

Rated 4.7 stars by 11 people

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Access Rights:
Free access
License:
This material is released under a GNU General Public License Version 3 license.
Rights Holder:
Douglas Brown
PACSs:
01.50.hv
01.50.Lc
Keywords:
force, interference, kinematics, mechanics, modeling, motion, oscillation, osp, spectra, spectroscopy, video analysis
Record Creator:
Metadata instance created June 4, 2008 by Anne Cox
Record Updated:
June 5, 2019 by Douglas Brown
Last Update
when Cataloged:
June 5, 2019
Other Collections:

Tracker for mac- Sierra

Author: Sonia Castro
Posted: September 3, 2018 at 4:47PM
Source: The Open Source Physics collection

Hello,
I would like to know if the last version of tracker works in mac-Sierra, since in the website only appears for mac OS

Thanks

» reply

What is the accuracy of position extraction by Tracker?

Author: Yang Zhou
Posted: April 21, 2018 at 6:33AM
Source: The Open Source Physics collection

To whom it may concern,
I intend to use Tracker to analyse the pedestrians crossing process on crosswalks.  I have some questions after I had import the video into the software.
1? What is the accuracy of position extraction by Tracker?
2?Can the software Tracker extract the position in small interval, such as 0.01s,0.05s?
3?The video is not recorded right above the crosswalk but in the oblique direction, is there any problems when extracting the trajectory?
Thank you for your help

» reply

Re: What is the accuracy of position extraction by Tracker?

Author: Edwin Remolina
Posted: Aug 03, 2018 at 1:04PM

> On Apr 21, 2018, Yang Zhou posted:
>
> To whom it may
> concern,
> I intend to use Tracker to analyse the pedestrians
> crossing process on crosswalks.  I have some questions
> after I had import the video into the software.
> 1?
> What is the accuracy of position extraction by Tracker
>
> 2?Can the software Tracker extract the position in
> small interval, such as 0.01s,0.05s?
> 3?The video is
> not recorded right above the crosswalk but in the
> oblique direction, is there any problems when extracting
> the trajectory?
> Thank you for your help


Yang cordial saludo.

Me interesa mucho la investigación que está usted realizando. Por el momento con respecto a la precisión del software, yo estoy realización una investigación de correlación entre Tracker, el acelerómetro de los celulares y el acelerómetro de precisión Vericom 4000, precisamente para determinar la precisión y dar aplicación en la investigación de accidentes de tráfico.

Durante este semestre terminaré la investigación y estaré enviando información al respecto.

» reply

How acceleration is calculated by tracker

Author: Eran Grinvald
Posted: October 27, 2014 at 5:33AM
Source: The Open Source Physics collection

I'm a physics teacher in highschool Israel and a part time researcher in the Weizmann Institure of Science. I'm new to tracker and think it is a fantastic tool and very excited about it.

I have two students which are frustrated that they can't reproduce the estimated acceleration calculated in tracker from the raw data (x,y,t) themselves, while they reproduce perfectly the velocities. I tried several algorithims I could think of to calculate the acceleration, all give quite different results, which means that for the specific object we tracked the time interval of the video is not short enough for numerical convergence. Yet non of the algorithims I tried did not reproduce the tracker result.

I could not find anywhere how tracker calculates the x (y) acceleration at a specific time, this without looking at the code itself.

Can anybody tell me what is the formula to calculate the acelleration in the x direction of point N (The first point that tracker calculates for is N=3, as a function of the data set x(i) and t(i) I think the standard algorithim for numerical second order integration can calculate for N=2 as well.)

Thanks in advance,

Eran

» reply

Re: How acceleration is calculated by tracker

Author: Wolfgang
Posted: Feb 09, 2017 at 3:20PM

> On Oct 27, 2014, Eran Grinvald posted:
>
> I'm a physics
> teacher in highschool Israel and a part time researcher
> in the Weizmann Institure of Science. I'm new to tracker
> and think it is a fantastic tool and very excited
> about it.
>
> I have two students which are frustrated
> that they can't reproduce the estimated acceleration
> calculated in tracker from the raw data (x,y,t) themselves,
> while they reproduce perfectly the velocities. I tried
> several algorithims I could think of to calculate
> the acceleration, all give quite different results,
> which means that for the specific object we tracked
> the time interval of the video is not short enough
> for numerical convergence. Yet non of the algorithims
> I tried did not reproduce the tracker result.
>
> I could
> not find anywhere how tracker calculates the x (y)
> acceleration at a specific time, this without looking
> at the code itself.
>
> Can anybody tell me what is the
> formula to calculate the acelleration in the x direction
> of point N (The first point that tracker calculates
> for is N=3, as a function of the data set x(i) and
> t(i) I think the standard algorithim for numerical
> second order integration can calculate for N=2 as well.
>
>
> Thanks in advance,
>
> Eran

» reply

Re: How acceleration is calculated by tracker

Author: Wolfgang
Posted: Feb 09, 2017 at 3:22PM

Please post technical questions about Tracker to the Tracker discussion forum.

http://www.compadre.org/osp/bulletinboard/ForumDetails.cfm?FID=57

» reply
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ComPADRE is beta testing Citation Styles!

Record Link
AIP Format
D. Brown, Computer Program TRACKER VIDEO ANALYSIS AND MODELING TOOL, Version 5.1.0 (2019), WWW Document, (http://physlets.org/tracker/).
AJP/PRST-PER
D. Brown, Computer Program TRACKER VIDEO ANALYSIS AND MODELING TOOL, Version 5.1.0 (2019), <http://physlets.org/tracker/>.
APA Format
Brown, D. (2019). Tracker Video Analysis and Modeling Tool (Version 5.1.0) [Computer software]. Retrieved June 17, 2019, from http://physlets.org/tracker/
Chicago Format
Brown, Douglas. "Tracker Video Analysis and Modeling Tool." Version 5.1.0. http://physlets.org/tracker/ (accessed 17 June 2019).
MLA Format
Brown, Douglas. Tracker Video Analysis and Modeling Tool. Vers. 5.1.0. Computer software. 2019. 17 June 2019 <http://physlets.org/tracker/>.
BibTeX Export Format
@misc{ Author = "Douglas Brown", Title = {Tracker Video Analysis and Modeling Tool}, Month = {June}, Year = {2019} }
Refer Export Format

%A Douglas Brown
%T Tracker Video Analysis and Modeling Tool
%D June 5, 2019
%U http://physlets.org/tracker/
%O 5.1.0
%O application/java

EndNote Export Format

%0 Computer Program
%A Brown, Douglas
%D June 5, 2019
%T Tracker Video Analysis and Modeling Tool
%7 5.1.0
%8 June 5, 2019
%U http://physlets.org/tracker/


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Citation Source Information

The AIP Style presented is based on information from the AIP Style Manual.

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This resource is stored in 14 shared folders.

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Tracker Video Analysis and Modeling Tool:

Is the Basis For Tracker Video Analysis Demo Package

The Tracker Demo Package was created by the Tracker Video Analysis and Modeling Tool.

relation by Mario Belloni
Is the Basis For OSP User's Guide Chapter 16: Tracker

OSP User's Guide Chapter 16: Tracker is based in the Tracker Video Analysis and Modeling Tool.

relation by Mario Belloni
Is the Basis For Tracker Video Analysis: Air Resistance

The Tracker Air Resistance Model was created using the Tracker Video Analysis and Modeling Tool.

relation by Mario Belloni
Is Referenced By Video Modeling: Combining Dynamic Model Simulations with Traditional Video Analysis

This article describes how Tracker is used to overlay dynamical models on the the video.

relation by Wolfgang Christian
Is Referenced By Innovative Uses of Video Analysis

The paper Innovative Uses of Video Analysis describes Tracker Video Analysis and Modeling Tool.

relation by Anne Cox
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