Tracker 4.87

This video analysis tool makes it easy to process a video file in order to track a certain object in order to provide details about its velocity and acceleration
Tracker is a Java-based application that allows you to analyze a video clip or an image in order to determine multiple variables. The program is designed to be used in physics experiments in order to easily estimate the acceleration and velocity of a certain object.

The application uses the Xuggle video engine in order to load the video file and analyze the image details. In order to perform the analysis you need to identify the frames from the movie that you need to analyze and specify the position of the tracked object.

If you want to get accurate results, make sure that you calibrate the scale of the video by specifying the length of a certain object. Since the app is mainly used for physics experiments, it is recommended to use objects with known dimensions when recording the experiment.

This program needs to use multiple markers in order to identify the position of the object in the the key frames. You can select various marker types according to the type of experiment that you are performing.

For instance, you can use the Line Profile option to measure the brightness for a certain image area or Point Mass to describe the movement of a certain object such as a ball or car. Additional tracks include vectors, particle models and angle measurements.

The results of the analysis are immediately displayed in the plot view which are defined for each track. When creating a new marker or changing the marker position, the plot is automatically refreshed in order to provide accurate information.

If you need to analyze the exact coordinates, the Data Tool provides you with additional measurements and statistics. Here you can calculate the maximal, minimal and mean values with just a few clicks.

As a conclusion, Tracker is an easy to use analysis tool that can help you calculate variables by retrieving relevant data from a movie or image. It includes a complete documentation which makes it suitable for all user categories.

Reviewed by , last updated on November 11th, 2014


file size:
5.5 MB
price:
FREE!
developed by:
Douglas Brown
license type:
Freeware
operating system(s):
Windows All
category:
C: \ Science / CAD

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softpedia rating

4.5/5

user rating 12

3.4/5
 

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11 Screenshots
Tracker - The main window of the Tracker allows you to load an image or movie and specify the track markers.Tracker - Fro the program allows you to export the tracks to a ZIP file or a video clip.Tracker - The Edit menu provides access to the program preferences and allows you to copy objects from the current image.TrackerTrackerTrackerTrackerTrackerTrackerTrackerTracker
What's New in This Release:
  • improved launch mechanism so all environment variables are set at runtime--no more global TRACKER_HOME and XUGGLE_HOME
  • changed Xuggle installation directory to child (Windows, Linux) or sibling (OSX) of Tracker directory
  • eliminated requirement for xuggle jars in Java extensions
  • added QTJava.zip to installer for OSX 10.10 to enable QuickTime engine
read full changelog
 

Application description

Tracker is a handy, easy to use video analysis and modeling tool built on the Open Source Physics (OSP) Java framework...

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