Monthly Archive: February 2015

Feb 17

Augmented Reality on libQGLViewer and OpenCV-OpenGL tips [w/code]

How to create an augmented reality app with QGLViewer, including some tips on camera calibration and extrinsic parameters from OpenCV to OpenGL.

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Feb 07

Simplest 20-lines OpenCV video stabilizer [w/ code]

A simple and short video stabilizer with OpenCV.

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Feb 05

Using Hidden Markov Models for staff line removal (in OMR) [w/code]

From left to right: Original binarized images, staff lines annotated by HMM,  staff lines removed.

So lately I'm into Optical Music Recognition (OMR), and a central part of that is doing staff line removal. That is when you get rid of the staff lines that obscure the musical symbols to make recognition much easier. There are a lot of ways to do it, but I'm going to share with you …

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