Difference between revisions of "UM:Predictive Tracking"
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Latest revision as of 12:06, 15 October 2014
Predictive Tracking
Normally, if the tracking calculation fails at some point in a shot, tracking stops. In some cases, it is apparent that the track path could simply carry on as before, the path being extrapolated based on its previous history.
If tracking fails because our tracked feature loses definition or goes out of camera, we can enable Predict Tracking at this point.
When we resume tracking, the track path is calculated such that it smoothly continues along the same path as calculated previously.
1: Tracking ... |
2: Feature reaches edge of frame. Turn Predict Tracking ON. |
3: Feature off camera but track path is extrapolated. |
Track path extrapolation continues. |
