Checking the tracking results

To check the results of the automatic tracking you can:

• View the track quality by looking at the cross-hairs superimposed on the Workspace, or by view the color icons in the Auto Tracks folder. Most of your reconstructed tracks should be green, a few yellow, and none red.
• View the reconstructed 3D scene, and check to ensure that it is consistent with the real scene.
• Render a video sequence where the 3D objects are superimposed on the image sequence and check to ensure that the integration is seamless.

To check the tracking results in 3D space

1. Click the 3D space icon that is located in the top left of the workspace view.

   MatchMover switches to 3D mode. The tracks are now displayed as 3D cones rather than cross-hairs.

   

2. Use the following Navigation tools to examine the tracking:
   • Click-hold the Dolly icon to move backward and forward in the space.
   • Click-hold the Orbit icon to view the space in 360 degrees.

     When orbiting the camera, the 3D View automatically orbits around the selected 3D object, point cloud, or camera.

   

   When you navigate in the 3D scene, you can recognize the different elements of the scene, such as the lamppost, statue and wall, as well as the camera path.

   

3. To center the view on a track, select it, then select View > Look At.
4. To view the Workspace through the computed camera with the image in the background, select View > Lock on Camera or click the icon.

   When viewing the Workspace, you can use of the location of the 3D cones to judge the potential orientation of any elements that you might want to introduce into the scene.

5. If the 3D cones appear too big or small, you can change their size by selecting the Project tab in the Parameters window. Change the 3D Helper size value from 1 to 0.5.