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November 2011

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Tracker Forum

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Tips, bug reports, and suggestions for video analysis using Tracker.

  Threads Posts Last Post
Reusing measurement setup created for one film in a second film 2 Sep 3
by Douglas Brown
How many fps do I need for classic physics experients (free fall, spring projectile launchers) 1 Aug 29
by Benjamin Teglbjærg
Limitations on Using Tracker Videos 3 Aug 19
by Steven Addison
Can't contact you via email to send translation files 1 Aug 16
by Daniel Parcerisas
Tracker 5.1.2 1 Aug 13
by Douglas Brown
Tracker shuts down while analyzing 3 Aug 13
by Douglas Brown
Not loading .trk files - stuck at 79 % 6 Aug 12
by Douglas Brown
Como é feito o calculo da velocidade e da aceleração? Qual algoritmo ou método é utilizado? Como faço para calcular essas grandezas? 2 Aug 6
by Douglas Brown
Any way to run Tracker on a Chromebook? 11 Jul 24
by jan wieczorek
Tracker 5.1.1 1 Jul 11
by Douglas Brown
Line Profile Time Scale 2 Jul 9
by Douglas Brown
Marked frames dont always auto-advance 6 Jun 25
by Paul Nord
Tracker 5.1 1 Jun 5
by Douglas Brown
Struggling with AVI files 3 May 21
by Stephen Robinson
problems with autotracking (ver 4.72) 9 May 18
by Wolfgang
Measuring people 2 Apr 29
by Douglas Brown
Is it possible to make a type of Tracker Applet in HTML to be able to embed in Moodle? 0
Tracker 5.0.7 1 Mar 9
by Douglas Brown
Question/suggestion: target tracking and calibration 4 Mar 4
by Douglas Brown
cant open .trk files in Tracker 5 Feb 22
by Douglas Brown
Variable angle for coordinate system 3 Feb 13
by Nicolas MALESYS
"No Video Engine" and "Xuggle error: java.lang.UnsatisfiedLinkError: no xuggle-xuggler in java.library.path" 9 Feb 8
by Davide Zanin
Problems with the "Java Virtual Machine Launcher" 2 Jan 28
by warner wanton
Autotracking not tracking 1 Jan 18
by Anthony Smith
Does Tracker have a file size limit? 3 Jan 16
by Noah Allen
Tracker Error (Xuggle error with opening .mov file) 1 Jan 8
by dude man
Tracker goes crazy 2 Dec 4, 2018
by Douglas Brown
Open live video from device for spectrodcopy 1 Nov 26, 2018
by Guillaume Mazaleyrat
Bad values of g with phone camera 3 Nov 19, 2018
by JULIAN ORO
Dynamic Rotation Measurement (Best practices) 3 Nov 17, 2018
by Paul Beeken
phone camera with non constant FPS 2 Nov 17, 2018
by Paul Beeken
Error: Could not encode Video - Timebase not supported by mpeg 4 Standard 5 Nov 16, 2018
by Thomas Rufer
Vehicle tracking 1 Nov 2, 2018
by Gabri Giaco
Tracker frame times appear to be inconsistent 1 Oct 9, 2018
by Jerry Gilfoyle
Cannot open .trk file 1 Sep 28, 2018
by Mehran Abolghasemi
problem with video distortion 3 Sep 18, 2018
by Douglas Brown
Takes a long time to open the program and very laggy 2 Sep 15, 2018
by Douglas Brown
Spectroscopy with the tracker 2 Sep 5, 2018
by Douglas Brown
vx and vy not being calculated 2 Sep 3, 2018
by Douglas Brown
2D to 3D 3 Aug 29, 2018
by Doug Marsh
Weird displacement-time graphs 0
Tracker 5.0.6 1 Aug 15, 2018
by Douglas Brown
just Fixed the Singapore Tracker Digital Library 1 Aug 15, 2018
by lookang
Video freezes on step back 3 Aug 2, 2018
by Steve Draper
Movement of rocket 17 Jul 30, 2018
by Douglas Brown
Tracking Dice Faces on Tracker Software 1 Jul 8, 2018
by David Stringham
video problem with high frame-rate file 5 Jun 27, 2018
by Tommy Hui
How can students start on the same frame and get different times 3 Jun 20, 2018
by Jon Walter
GoPro video 60 fps and 120 fps 4 Jun 19, 2018
by Jon Walter
Tracker 5.0.5 12th May 2018 not full screening on a 2560 x 1440 monitor 3 Jun 14, 2018
by alex ng
Tracker/Open Source Physics/ComPADRE public lecture for Singapore 1 Jun 12, 2018
by lookang
Export Video Quality 3 Jun 6, 2018
by Paul Nord
Data Export 8 Jun 6, 2018
by Douglas Brown
Two Objects 2 Jun 1, 2018
by Douglas Brown
damped harmonic oscillator 2 May 31, 2018
by Douglas Brown
Software freeware for Firms 6 May 23, 2018
by Douglas Brown
Tracker 5.0.4 3 May 20, 2018
by Douglas Brown
Video Engine error 13 May 12, 2018
by Tassos Kallianiotis
Need the ecuations that Tracker uses to calculate velocity and acceleration for a demostration in a paper 4 May 9, 2018
by Douglas Brown
GoPro Lens Correction? 17 May 3, 2018
by Jon Walter
Changing decimal separator to a period 3 Apr 29, 2018
by Gerwyn Hughes
Tracker 5.0 released 20 Apr 27, 2018
by Douglas Brown
export multiple rgb regions 4 Mar 22, 2018
by alex ng
Tracker 4.11.0 released 2 Sep 18, 2017
by Wolfgang
Tracker 4.10.0 released 1 Aug 30, 2017
by Douglas Brown
Tracking muscle fascicles through ultrasound ! 3 Jul 20, 2017
by Georgios M
Tracker 4.9.8 released 1 Jun 18, 2017
by Douglas Brown
Camera Angle Issue 5 Jun 6, 2017
by Chris Fortunato
Tracker files not loading properly 4 May 12, 2017
by Douglas Brown
Tracker 4.97 released 2 May 10, 2017
by Max Chen
Data lost after 10000 frames 12 May 2, 2017
by Max Chen
Tracker does'nt open Video 5 Mar 29, 2017
by Douglas Brown
Tracker isn't work at windos 10 8 Mar 16, 2017
by Douglas Brown
Tutorial: Can't select Clipboard 6 Mar 10, 2017
by Douglas Brown
Startup Issues 2 Mar 4, 2017
by Douglas Brown
Tracker 4.96 released 1 Feb 10, 2017
by Douglas Brown
Dynamic particle model: How to use acceleration? 2 Dec 1, 2016
by Douglas Brown
Tracker changes playback speed after .mov import 2 Nov 20, 2016
by Douglas Brown
Some frames in my avi file are excluded due to variable time duration 1 Nov 3, 2016
by chieh dai
Is there an option to increase perormance? 2 Oct 11, 2016
by Douglas Brown
Won't load video from phone 5 Sep 27, 2016
by Scott McCullough
Tracker 4.95 released 1 Sep 21, 2016
by Douglas Brown
Perspective filter problem 3 Aug 21, 2016
by Anastasios Koimas
feature request 2 Aug 8, 2016
by Douglas Brown
Tracker 4.94 released 1 Aug 8, 2016
by Douglas Brown
high speed camera for experiments 10 Aug 5, 2016
by Scott McCullough
tracker osx el capitan 2 Jul 4, 2016
by Douglas Brown
Quicktime Support for Windows ended - Uninstall reccomended 2 Jun 1, 2016
by Douglas Brown
Tracker HTML file tutorial 1 May 16, 2016
by lookang
tracker with l-o-n-g video 5 May 9, 2016
by Jim Deane
Stepwise Functions 2 May 2, 2016
by Douglas Brown
Cannot Import Videos 2 Mar 14, 2016
by Sjoerd Ypma
Display problem with new windows 8 laptop 6 Mar 12, 2016
by Douglas Brown
Hello I have a question about the speed at which the curves show a distorted image that n is the reason to see the failure to identify quickly? 2 Mar 12, 2016
by Douglas Brown
is there a bug in the acceleration vector in the world view in polar coordinate system? 4 Feb 20, 2016
by Douglas Brown
Tracker 4.92 release 1 Jan 27, 2016
by Douglas Brown
Missing file in distribution? 3 Jan 25, 2016
by lookang
How to determine an estimate of speed and overall distance travelled 3 Jan 13, 2016
by molly mactaggart
Tracker slows down after each frame 3 Dec 15, 2015
by Micha? Marszal
Using tracker with 64-bit Java 3 Nov 7, 2015
by Lindsey Dubb
Tracker 4.91 linux 64-bit version, Xuggle not working 1 Oct 16, 2015
by Nick Zhang
Tracker and 120 frames/second 3 Oct 15, 2015
by Dionysis Konstantinou
Tracker 4.90 1 Aug 4, 2015
by Douglas Brown
Tracker on Linux odroid 1 Jul 24, 2015
by Kristiyan Balabanov
can Tracker Models compensate for a moving reference frame ? 2 Jun 12, 2015
by Douglas Brown
possible new bug in Tracker 4.88? during export the clip is not trim for *.MOV files + *.MOV files must have no blank spaces 1 Jun 11, 2015
by lookang
[Bug] Export Data to Excel 3 May 25, 2015
by manos bar
(help) I need help with an experiment I have to do 2 May 12, 2015
by Ami B
Tracker says "quicktime is not installed" even if I have installed it. 7 Apr 6, 2015
by harold ship
Tracker 4.87 beta 9 Feb 21, 2015
by Douglas Brown
Video Failed 2 Feb 20, 2015
by Douglas Brown
Tracker tutorials 4 Feb 4, 2015
by Douglas Brown
NullPointerException when using mp4's downloaded from youtube 2 Dec 31, 2014
by Douglas Brown
Tracker in Mac OSX 10.10 Yosemite : Xuggle problem 16 Nov 21, 2014
by Ethan Kao
Tracker 4.87 1 Nov 11, 2014
by Douglas Brown
Smoothing algorithm for x & y data 4 Oct 29, 2014
by Douglas Brown
Tracker 4.86 released 7 Oct 25, 2014
by Thimios Papakyriakopoulos
Tracker versus Windows 8: New User Error? 2 Oct 23, 2014
by Douglas Brown
Open 12 Oct 1, 2014
by Wallace Barbosa
Java Error on Mac OSX using 4.85 6 Sep 1, 2014
by Paul Mall
Tracker on old iMacs 2 Aug 26, 2014
by Douglas Brown
Tracker not moving search area 4 Aug 19, 2014
by Douglas Brown
Tablet computer help 4 Aug 19, 2014
by Ivo Gienal
possible bug when trk has 3 complex models? 2 Aug 7, 2014
by lookang
trz open in Mac but not in Windows i think, can try if you can? 2 Aug 7, 2014
by lookang
velocity not smooth in tracker 4.85 dynamic model for free fall with air drag 9 Aug 4, 2014
by Douglas Brown
Uncertainity 5 Aug 2, 2014
by Ami B
Digital Library cannot remove base URL if i first use the folder direction to save? 7 Jul 15, 2014
by Douglas Brown
Feature Request: File folder location 4 Jun 2, 2014
by Douglas Brown
Measuring g in simple free fall (incorrect values from fits) 8 May 19, 2014
by Paul Nord
video tutorial on how to have a shifting axes to reflect a changing origin? 3 May 19, 2014
by lookang
Localized/non localized decimal separators 5 May 8, 2014
by Douglas Brown
Tracker 4.85 released 1 Apr 25, 2014
by Douglas Brown
Tracker 4.6 now available 5 Mar 25, 2014
by osman diyaka
Tracker 4.84 freezes 4 Mar 16, 2014
by Douglas Brown
Tracker quits while starting on Mac 2 Feb 18, 2014
by Douglas Brown
Using slider in tracker to change value ? 2 Feb 4, 2014
by Douglas Brown
Java(TM) Platform SE binary doesn't work any more 7 Feb 3, 2014
by Holger SWF
Tracker 4.84 1 Jan 31, 2014
by Douglas Brown
Using Tracker in the Classroom 1 Jan 30, 2014
by Wolfgang
tracker_start.log 2 Jan 23, 2014
by Douglas Brown
Not able to load video 5 Jan 15, 2014
by urvashi raheja
Colors for velocity and acceleration vectors 6 Jan 13, 2014
by Georgios Tsalakos
Stretch celocity and acceleration Vector independently 2 Jan 11, 2014
by Douglas Brown
Velocity problem with the step size 3 Dec 3, 2013
by Ismael Lozano
angualr velocity and rotation angle 2 Nov 21, 2013
by lookang
camera suggestions? 4 Nov 12, 2013
by lookang
Tracker 4.82 released 1 Oct 5, 2013
by Douglas Brown
more than 10.000 frames? 10 Oct 2, 2013
by Martin Peters
freefall2 2 Sep 23, 2013
by lookang
any way tracker can be used to estimate the motion of a takeoff airplane? 3 Aug 28, 2013
by lookang
Endless loop when loading video 3 Aug 21, 2013
by Paul Fontana
algorithm of tracker? 6 Aug 16, 2013
by Douglas Brown
Tracker video loading issue 2 Aug 5, 2013
by Douglas Brown
How to estimate distance covered and speed of object in tracker 4.80? 2 Jul 30, 2013
by Douglas Brown
Tracker 4.81 released 1 Jul 30, 2013
by Douglas Brown
Cameras compatible with Tracker 1 Jun 20, 2013
by Tommi Holsenbeck
Track Calibration Point Pair 5 Jun 6, 2013
by Martin Peters
Using units in Tracker 2 May 28, 2013
by Douglas Brown
Do we need a password when installing tracker on Mac computer? 1 Mar 16, 2013
by Robbie Xin
Xuggle 3.4 <-> 5.4 3 Mar 11, 2013
by Foo Bar
Tracker 4.75 on MacOS X - autotracker slows way down for long files 3 Feb 26, 2013
by Douglas Brown
Tracker 4.80 released 1 Feb 26, 2013
by Douglas Brown
Tracker 4.75 1 Dec 20, 2012
by Douglas Brown
Basic compiling question 4 Sep 23, 2012
by Douglas Brown
AAPT 2013 Winter Meeting Tracker Session 1 Sep 20, 2012
by Wolfgang
Tracker 4.71 file opening problem 2 Aug 28, 2012
by Ivo Gienal
Tracker 4.72 released 1 Aug 27, 2012
by Douglas Brown
Tracker 4.71 released 2 Aug 26, 2012
by Georgios Tsalakos
Tracker 4.62 File Opening Bug 4 Jul 26, 2012
by Douglas Brown
new Tracker beta now available 4 Jul 26, 2012
by Douglas Brown
Use Tracker in Java 2 Jun 25, 2012
by Douglas Brown
Sensor data inquiring into table 2 Jun 19, 2012
by Douglas Brown
Tracker on OSX Lion 2 Jun 9, 2012
by Douglas Brown
Video Instruction on use of tracker for analysis 2 Feb 6, 2012
by lookang
Vista 64bit 2 Oct 24, 2011
by Wolfgang
Tracker 3.0 1 Dec 1, 2009
by Douglas Brown
Tracker on Snow Leopard 1 Nov 4, 2009
by Douglas Brown
Apple QuickTime 3 Nov 4, 2009
by Douglas Brown
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