Gesture Variation Follower: c++ library and implementation in various creative programming environments. GVF allows for realtime gesture recognition and variation tracking.
GVF started as a research project on novel methods for expressive interaction with digital media through physical gestures. Stemming from academic research, the code remains free and open-source (see licence below). If you use it please cite our work:
- B Caramiaux, N Montecchio, A Tanaka, F Bevilacqua. Adaptive Gesture Recognition with Variation Estimation for Interactive Systems. ACM Transactions on Interactive Intelligent Systems (TiiS), 4(4), 18-51. December 2014
If you woudl like to read about technical details of the method, the article can be downloaded here.
Start by constructing a GVF object:
GVF *gvf = new GVF();
To record gesture templates, switch to the learning mode:
Then for each gesture to record, start a new gesture
And feed each gesture point (vector of float values):
Once the gestures recorded, switch to the following mode:
Start a new gesture to be recognised and its variations tracked:
And perform the recognition + tracking for each observation of the gesture:
To obtain GVF's outputs, declare a variable of type
And use this variable to get the output of the
Examples in creative programming environments
A compiled version of GVF for MacOSX (>10.8) can be found in
max-patches/ together with the help patch.
If needed, to compile the object first clone the MaxSDK by using the provided script:
Then open the Xcode project from
xcode/ and build the object.
We provide an openFrameworks add-on
ofxGVF. To use it in your openFrameworks project, copy the
ofxGVF folder to the openFrameworks
add-on folder. We provide an example of application using GVF to recognise and track 2D gestures.
A compiled version of GVF for MacOSX (>10.8) is provided together with its help patch.
To compile the GVF PureData object, open a terminal and do:
cd PureData/ make
Note that you need PureData installed on your computer.
The algorithm has been designed and prototyped in 2011 at Ircam Centre Pompidou Paris (STMS lab Ircam-CNRS-UPMC) by Baptiste Caramiaux and Nicola Montecchio (University of Padova), in the Real-Time Musical Interaction team led by Frédéric Bevilacqua.
It has been extended at Goldsmiths College, University of London, by Baptiste Caramiaux.
The openFrameworks add-on has been greatly done by Matthew Gingold (https://github.com/gameoverhack)
GVF library is released under the LGPL v3
GNU LESSER GENERAL PUBLIC LICENSE
Version 3, 29 June 2007
Copyright (C) 2007 Free Software Foundation, Inc. http://fsf.org/
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