Introduction

Getting Started > Tutorials > Lesson 3: Object-based tracking >

Introduction

In this lesson, you will learn how to track an object, such as an image plane in MatchMover using a 3D model of it. This is a useful technique in situations such as the following:

Augmenting a real set for which some 3D information is available as manual measurements or CAD data.
Matchmoving characters from a Cyberware scan.
Tracking complex shots of a set using data from an active scanning device (LIDAR).

Using this technique ensures that, in any case (even with low or zero parallax), the camera path will be exactly consistent with the 3D geometry of the tracked element.

The image sequence you will use in this lesson was shot using a hand-held DV camcorder.

In this lesson you will learn how to:

Import a 3D mesh.
Create tracks and survey points attached to vertices of the mesh, using the “elastics” feature.