Emerging Topics in Computer Vision

7.5. Camera Tracking and Structure from Motion

With the advent of computer vision techniques in visual effects, directors found that they could move the camera all over the place and the effects crew could still insert digital effects into the image. So, naturally, film directors ran with the ability and never looked back. Now all the large effects shops have dedicated teams of computer vision artists. Almost every shot is tracked in one way or another.

In the computer vision community, the world space location of the camera is typically called the camera's extrinsic parameters. Computing these parameters from information in an image or images is called camera tracking in the visual effects industry. In computer vision, this task has different ...