The Motio tool uses the assumption of brightness consistency of an image to generate motion vectors from one frame to the next. That is, the luminance values remain constant over time, but their 2D position in the image may change. Flashing lights, shadows, and other image changes that violate brightness consistency may interfere with the generation of motion vectors and cause problems with your retiming operation.
For imformation on using the Motio tool, see Computing Motion Vectors and Show Vectors.
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