In the calibrationApp, while calibrating cameras using a chessboard pattern, the corners are automatically detected and shown by different colours. I would like to know whether Hough line transform or Harris detector is internatlly used in the CalibrationApp to detect lines/corners on the chessboard pattern. I would be thankful to you if you could help me in this regard.
the CalibrationApp internally uses OpenCV, so you would have to investigate the respective OpenCV routine. I assume that the detection of corners plays an important role.