We find some specific points in it ( square corners in chess board). To find all these parameters, what we have to do is to provide some sample images of a well defined pattern (eg, chess board). For stereo applications, these distortions need to be corrected first.
Visit for more details.Įxtrinsic parameters corresponds to rotation and translation vectors which translates a coordinates of a 3D point to a coordinate system. All the expected straight lines are bulged out. For example, one image is shown below, where two edges of a chess board are marked with red lines.īut you can see that border is not a straight line and doesn’t match with the red line. Its effect is more as we move away from the center of image.
Due to radial distortion, straight lines will appear curved. Two major distortions are radial distortion and tangential distortion. Opencv C++ Pdfīasics Today’s cheap pinhole cameras introduces a lot of distortion to images. This tutorial explains how to use camera- calib to.
