Tips for Fixed Camera Calibration
When all the cameras are fixed, video synchronization can usually be
done easily and accurately.
Sometimes you may find that the synchronization does not look right. The
most probable causes may be one of the following:
- Bad initial synchronization: The fixed calibration requires that the
videos be synchronized with an error of less than one frame. If the
initial synchronization does not meet this requirement, the result will
not be accurate.
- Calibration frames selection: When the "speed" value needs to be
computed, the calibration frames must be spread out along the entire
video range. For example, if the project has frames from 0 to 100,
selecting frames 2,3,4,5 for calibration will almost certainly produce
incorrect synchronization. A proper selection of the calibration frames
should be something like 2, 4, 50, 90, and 98.