Chapter 3

2D Tracking

The first step in creating a matchmove is to identify important features in the image with special markers, or tracks, in a process known as 2D tracking. These markers are used to calculate the camera’s motion and the overall three-dimensional layout of the scene.

2D tracks enable matchmoving programs to know what’s going on in the scene. These tracks serve as the two-dimensional clues that help us to re-create the three-dimensional scene. In this chapter, I’ll show you how 2D tracking works, how to create accurate tracks, and what effect tracking has on calibration.

Chapter Contents

  • Understanding the 2D Tracking Process
  • Exploring the Anatomy of a 2D Track
  • Track Placement: Making Every Track Count
  • Getting Tracks to Stick ...

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