Welcome to uavster's blog (filtered)
You are currently browsing posts related to Open Source. Perhaps you prefer to browse all posts.
Ultrafast switching between OpenCV versions
OpenCV 3.0.0-alpha came out recently with exciting new functionalities. I was keen to give a try in particular to the new 3D reconstruction functions, so I downloaded, built and installed OpenCV 3.0.0-alpha [...]
CVswitch allows you to take snapshots of OpenCV installations and switch between them at light speed. It is open-source and I am releasing it under the GPL 3 license on GitHub [...]
Some people might think that the correct way of working on my experiment without affecting my client's project would be installing version 3 in its own directory and making my experiment point there. [...]
Boosting color-based tracking
Tracking an object over a video sequence is a classic problem in Computer Vision. A tracking algorithm looks for the object at every new frame, given a model of the object. This model holds information [...]
There are tons of tutorials on color-based tracking that use the histogram back-projection to find those pixels in the image that are most likely to be object pixels. Then, they use MeanShift [...]
After normalization, each bin value in the color histogram expresses the probability that a pixel has a color in bin B, given that it is a pixel of object O. We can express this as the conditional probability [...]
