User Manual

Table Of Contents
Seed Frames
Two seed frames are used in the solve process. The algorithm chooses two frames that are as
far apart in time yet share the same tracks. That is why longer tracks make a more significant
difference in the selection of seed frames.
The two Seed frames are used as the reference frames, which should be from different angles
of the same scene. The solve process will use these as a master starting point to fit the rest of
the tracks in the sequence.
There is an option in the Solve tab to Auto Detect Seed Frames, which is the default setting and
most often a good idea. However, auto detecting seed frames can make for a longer solve.
When refining the Trackers and re-solving, disable the checkbox and use the Seed 1 and Seed
2 sliders to enter the previous solve’s seed frames. These seed frames can be found in the
Solve Summary at the top of the Inspector after the initial solve.
Refine Filters
After the first solve, all the Trackers will have extra data generated. These are solve errors and
tracking errors.
Use the refine filters to reduce unwanted tracks, like setting minimum tracker length to eight
frames. As the value for each filter is adjusted, the Solve dialog will indicate how many tracks
are affected by the filter. Then Solve again.
Onscreen Culling
Under the Options tab, set the track to 20. This will display each track on footage with +-20
frame trail. When scrubbing/playing through the footage, false tracks can be seen and selected
onscreen, and deleted by pressing the Delete key. This process takes an experienced eye to
spot tracks that go bad. Then Solve again.
You can view the exported scene in a 3D perspective viewer. The point cloud will be visible.
Move and pan around the point cloud, select and delete points that seem to have no inline with
the image and the scene space. Then Solve again.
Repeat the process until the solve error is below 1.0 before exporting.
Common Controls
Settings Tab
The Settings tab in the Inspector is also duplicated in other Tracking nodes. These common
controls are described in detail in the following “The Common Controls” section.
Chapter – 107 Tracker Nodes 2433