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A modification to the dataset from Tracker was necessary to have the same time scale (this will be investigated and noted in the section above). The displacements from Tracker and Proanalyst are similar as shown in the figure below. This search region will maintain its relative position to the tracked feature. From one frame to the next it will only look within the search region specified by the box with the dashed outline. Tracker will search for the pixel arrangement within the small circle in each frame. Their age ranged from 20-24 years with mean. Subjects: Sixty-four normal physical therapy intern students (54 male and 10 female) participated in this study. A small circle and a box with a dashed border will appear. Purpose: This study was conducted to investigate criterion validity of Kinovea computer program in measuring cervical range of motion in frontal plane compared with the CROM, as a gold standard valid and reliable tool in healthy subjects. Hit 'Ctrl' and 'Shift' simultaneously and click at the location of point mass A. As with other steps there may be alternative methodologies but mine was to return to the first frame as I set up the automated tracking tool. The ProAnalyst tutorial from which this video was obtained calibrates at frame 21 hence this frame selection for this tutorial.Ĥ) Return to frame 1 and add a feature to track (a 'Point Mass' in this case):Ħ) By default Tracker seems to assume the user will manually specify the location of the feature and advances by one frame (or perhaps more with the right setting).
KINOVEA TUTORIAL PDF SOFTWARE
This page documents comparisons between Tracker and a commercial software package (ProAnalyst: ) to which I have legitimate access through a university.Ī basic introduction to the algorithms employed in this type of software can be found here:Ģ) Identify origin and specify orientation of coordinate system:ģ) Calibration: Advance to frame 21 and insert a calibration stick along the 'rocker panel' (along the bottom of the body between the wheel wells) and specify the length to be 2.25 (inches). Tracker ( ) is an outstanding piece of software.
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A number of open source efforts exist for tracking and analyzing motion with video.