OpenCV  3.1.0
Open Source Computer Vision
Camera calibration with square chessboard

The goal of this tutorial is to learn how to calibrate a camera given a set of chessboard images.

Test data: use images in your data/chess folder.

Pose estimation

Now, let us write a code that detects a chessboard in a new image and finds its distance from the camera. You can apply the same method to any object with known 3D geometry that you can detect in an image.

Test data: use chess_test*.jpg images from your data folder.

Question: how to calculate the distance from the camera origin to any of the corners?