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We propose a method for identifying a piano keyboard present in the video footage of a standard webcam with the goal of teaching chords, scales and suggested finger positions to a beginner pianist. Our keyboard identification method makes use of binary thresholding, Sobel operators and Hough transforms, as well as proposed algorithms specific to this application, to first find an area resembling a...
Stereo vision is a computationally expensive process that limits accurate real time performance. However, this is usually due to large resolutions in high end cameras. When low cost web cameras are exchanged for high resolution cameras, a practical real time stereo system can achieve real time performance. The accuracy of the disparity (depth) data depends strongly on the stereo camera calibration...
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