For complicated scenes, it may be necessary to manually control the tracking process by editing or deleting tracks that were created by MatchMover’s automatic tracking feature. Using a supervised tracking technique, you can place tracks manually by specifying the key points or then edit their location if required. Matchmover then generates a whole point trajectory based on the manually placed points.

In this lesson, you will learn how to place tracks manually in a scene using. The image sequence you use for the lesson was shot against a green background using professional equipment. The green background serves as a typical support for the actors, and would be replaced by virtual decors. The gray crosses on the background will help you accurately place tracking points in the scene.

The image sequence appears courtesy of Clear Ltd.

In this lesson you will:

• Load a sequence.
• Create and edit tracks manually.
• Launch the solver.
• Define a coordinate system.
• Add a 3D object to verify the tracked sequence.