2.3. Camera Calibration with 3D Objects

The traditional way to calibrate a camera is to use a 3D reference object such as those shown in Figure 2.3. In Figure 2.3a, the calibration apparatus used at INRIA [8] is shown, which consists of two orthogonal planes; a checker pattern is printed on each. A 3D coordinate system is attached to this apparatus, and the coordinates of the checker corners are known very accurately in this coordinate system. A similar calibration apparatus is a cube with a checker pattern painted in each face, so three faces are generally visible to the camera. Figure 2.3b illustrates the device used in Tsai's technique [33], which uses only one plane with checker pattern, but the plane needs to be displaced at least once with ...

Get Emerging Topics in Computer Vision now with O’Reilly online learning.

O’Reilly members experience live online training, plus books, videos, and digital content from 200+ publishers.