VISUAL PITCH CLASS PROFILE - A Video-based Method for Real-time Guitar Chord Identification

M. Cicconet, P. Carvalho, L. Velho, M. Gattass

Abstract

We propose a video-based method for real-time guitar chord identification which is analogous to the state-of-the-art audio-based method. While the method based on audio data uses the Pitch Class Profile feature and supervised Machine Learning techniques to ``teach'' the machine about the chord ``shape'', we use as feature the approximated positions of fingertips in the guitar fretboard (what we call Visual Pitch Class Profile), captured using especial hardware. We show that visual- and audio-based methods have similar classification performance, but the former outperforms the latter with respect to the immunity to noise caused by strumming.

References

  1. Bradski, G. and Kaehler, A. (2008). Learning OpenCV: Computer Vision with the OpenCV Library. O'Reilly.
  2. Burns, A. and Wanderley, M. (2006). Visual methods for
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Paper Citation


in Harvard Style

Cicconet M., Carvalho P., Velho L. and Gattass M. (2010). VISUAL PITCH CLASS PROFILE - A Video-based Method for Real-time Guitar Chord Identification . In Proceedings of the International Conference on Computer Vision Theory and Applications - Volume 2: VISAPP, (VISIGRAPP 2010) ISBN 978-989-674-029-0, pages 487-490. DOI: 10.5220/0002824904870490


in Bibtex Style

@conference{visapp10,
author={M. Cicconet and P. Carvalho and L. Velho and M. Gattass},
title={VISUAL PITCH CLASS PROFILE - A Video-based Method for Real-time Guitar Chord Identification},
booktitle={Proceedings of the International Conference on Computer Vision Theory and Applications - Volume 2: VISAPP, (VISIGRAPP 2010)},
year={2010},
pages={487-490},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0002824904870490},
isbn={978-989-674-029-0},
}


in EndNote Style

TY - CONF
JO - Proceedings of the International Conference on Computer Vision Theory and Applications - Volume 2: VISAPP, (VISIGRAPP 2010)
TI - VISUAL PITCH CLASS PROFILE - A Video-based Method for Real-time Guitar Chord Identification
SN - 978-989-674-029-0
AU - Cicconet M.
AU - Carvalho P.
AU - Velho L.
AU - Gattass M.
PY - 2010
SP - 487
EP - 490
DO - 10.5220/0002824904870490