1Camera calibration and 3D reconstruction (calib3d module) {#tutorial_table_of_content_calib3d} 2========================================================== 3 4Although we got most of our images in a 2D format they do come from a 3D world. Here you will learn 5how to find out from the 2D images information about the 3D world. 6 7- @subpage tutorial_camera_calibration_square_chess 8 9 *Compatibility:* \> OpenCV 2.0 10 11 *Author:* Victor Eruhimov 12 13 You will use some chessboard images to calibrate your camera. 14 15- @subpage tutorial_camera_calibration 16 17 *Compatibility:* \> OpenCV 2.0 18 19 *Author:* Bernát Gábor 20 21 Camera calibration by using either the chessboard, circle or the asymmetrical circle 22 pattern. Get the images either from a camera attached, a video file or from an image 23 collection. 24 25- @subpage tutorial_real_time_pose 26 27 *Compatibility:* \> OpenCV 2.0 28 29 *Author:* Edgar Riba 30 31 Real time pose estimation of a textured object using ORB features, FlannBased matcher, PnP 32 approach plus Ransac and Linear Kalman Filter to reject possible bad poses. 33