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Tracks 11 points of the right hand to capture gestures of Brazilian Sign Language.
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LICENSE Version 1.1 - readme and license updated Aug 20, 2016


version 1.1

This application gets the geographic coordinates from the five fingers of the right hand and saves these points on a .txt file. Later on, there is a parser to format the file and allow it to be used for training and classification.

We've used it to capture some gestures of Brazilian Sign Language.


The Kinect-Finger-Tracking API, developed by LightBuzz Software tracks the extremity of 5 fingers of each hand. All the data is get from Kinect V2 using the principles of Convex Hull.

Points of Interest

Inicially, we've used the hand's center point - information provided by Kinect: Hand's center point

We need to use the center point to get the medium point - the intersection between intermediate phalanges and proximal phalanges:

Hand structure

Area for calculus

Once the area to be used on calculus is defined, the extraction of these points is through their angulation. This is used to fix any possible noise generated by the angle of the middle finger.

On the end we have the following points:

Phalanges points




Licensed under the Apache License, Version 2.0

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