How does a 3D camera tracker work in Photoshop?

How does a 3D camera tracker work in Photoshop?

The tracker will try to find as many features as possible in your footage and track their movement from frame to frame. This generates a cloud of 2 dimensional track points on your footage. Using this cloud of 2D track points, the 3D Camera Tracker then tries to ‘solve the camera’.

Why are the track points on the 3D camera different?

Note that the track points are of different sizes, indicating that the 3D Camera Tracker was able to derive depth information from the scene and correctly place the track points at different distances from the camera. The smaller a track point appears, the further away it is from the camera.

Why is my 3D camera tracker not working?

Moving objects like people and cars are not features and tend to interfere with the 3D camera Tracker. The tracker will try to find as many features as possible in your footage and track their movement from frame to frame. This generates a cloud of 2 dimensional track points on your footage.

How to use motion tracker in Adobe After Effects?

Because the camera does not move around within the depth of the scene, you can attach objects to the ‘flat’ track points or use the 2D motion tracker I demonstrated in this Adobe After Effects tutorial to link other layers to your camera’s movement and it will almost always work just as good.

Are there any problems with the 3D camera tracker?

As great as the 3D Camera Tracker is, there are a number of common problems that people encounter when trying to track their footage and this tutorial will explain what is going wrong and how you can fix it. Before we look into why the 3D camera tracker does not work, we first need to understand how it does work.

What happens to 3D tracks in motion tracker?

The Motion Tracker will assume that the 3D reconstruction was faulty and that it will be reconstructed after the Tracks are edited. This can be prevented by enabling the Lock Solved Data option. Normally, nothing else will have to be modified on Tracks after a successful 3D (camera) reconstruction.