Howtosignalprocessing
- What is intrinsic and extrinsic camera calibration?
- What is camera rotation matrix?
- What is extrinsic calibration?
- Which part of the camera matrix will change during the camera movement?
What is intrinsic and extrinsic camera calibration?
Camera Calibration Parameters
The extrinsic parameters represent a rigid transformation from 3-D world coordinate system to the 3-D camera's coordinate system. The intrinsic parameters represent a projective transformation from the 3-D camera's coordinates into the 2-D image coordinates.
What is camera rotation matrix?
A rotation matrix is a 3-by-3 matrix, the rotation matrix together with the translation vector allows you to transform points from the world coordinate to the camera coordinate system. You are getting a 3x3x5 because you have 5 pattern images. For each pattern image you will get a rotation matrix.
What is extrinsic calibration?
Extrinsic calibration aims to obtain the extrinsic parameters that define the rigid relationship, that is, the rotation matrix and translation vector between two coordinate systems.
Which part of the camera matrix will change during the camera movement?
The 4x4 transformation matrix that converts points from the world coordinate system to the camera coordinate system is known as the camera extrinsic matrix. The camera extrinsic matrix changes if the physical location/orientation of the camera is changed (for example camera on a moving car).
