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2017-08-22 22:41:17 -0600 received badge  Student (source)
2015-04-16 08:49:57 -0600 asked a question What is the patented algorithm used by OpenCV?

I am using the OpenCV of 2.4. What is the patented algorithm used by OpenCV? I know that SURF and SIFT. Is there more? Also, used for calibration "FindChessboardCorners" and "FindCirclesGrid" This patent algorithm? Thanks for reading. Please answer.