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Electronic Conducting System

Electronic Conducting System. Kenzo Abrahams Supervisor: Mehrdad Ghaziasgar Co-supervisor: James Connon Mentored by: Diego Mushfieldt. Overview. Introduction User Interface Specification High Level Design Low level Design Demo. Introduction. Interactive Conducting System

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Electronic Conducting System

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  1. Electronic Conducting System Kenzo Abrahams Supervisor: MehrdadGhaziasgar Co-supervisor: James Connon Mentored by: Diego Mushfieldt

  2. Overview • Introduction • User Interface Specification • High Level Design • Low level Design • Demo

  3. Introduction • Interactive Conducting System • Tracks hands using webcam • Real-time alterations depending on hand gestures • Change volume • Change tempo

  4. User Interface Specification • Graphic User Interface (GUI) • User interacts using webcam and mouse

  5. User Interface Specification

  6. User Interface Specification

  7. User Interface Specification

  8. High Level Design • The solution can be broken up into 3 parts • Input • Image processing • Adjust music

  9. Low Level Design

  10. Low Level Design • Input • The frames need to be acquired from the webcam • cvQueryFrame(capture)

  11. Low Level Design • Image Processing • Convert copies of frames to HSV colour space • cvCvtColor(frame, img_hsv, CV_BGR2HSV)

  12. Low Level Design • Image Processing • Skin segmentation • Use of a predefined method • Detect if pixels in the rectangle fall within a certain range

  13. Low Level Design • Image Processing • Set hand as region of interest • cvSetImageROI(pHueImg, pHandRect )

  14. Low Level Design • Image Processing • Perform Camshift • cvCamShift( pProbImg, prevHandRect, cvTermCriteria( CV_TERMCRIT_EPS | CV_TERMCRIT_ITER, 10, 1 ), &components, &HandBox )

  15. Low Level Design • Adjust Music • Library RTcmix is used to produce the music • Can be imbedded into C++ code • load("WAVETABLE") • Wave = maketable("wave", 1000, "tri") • WAVETABLE(start time, duration, amp, frequency, pan, wave)

  16. Demo • Overview of demonstration • Track the right hand • Perform the gestures that are going to be used • Track the left hand • Perform simple gestures such as raising and lowering hand • Move each hand separately

  17. Project Plan

  18. References • O'Niel, D L. (2008). Music Theater Jobs. Available: http://www.ehow.com/list_6547349_music-theater-jobs.html. Last accessed 29th March 2012. • Bradski, G Kaehler, A. (2008). Getting to Know OpenCV. In: Loukides, M Learning OpenCV. United States of America: O’Reilly. pp31-87. • Ivanciuc, O. (2005). SVM - Support Vector Machines . Available: http://www.support-vector-machines.org/. Last accessed 29th March • Nakra, T., Ivanov, Y., Smaragdis, P., Ault, C. (2009). The USB Virtual Maestro: an Interactive Conducting System, pp.250-255, NIME2009 • Borchers, J., Hadjakos, A., M¨uhlh¨auser, M. (2006), MICON a music stand for interactive conducting. Proceedings of the 2006 conference on New interfaces for musical expression, pp254–259.

  19. Questions and Answers

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