| 摘要 |
The present invention provides a method and apparatus for estimating motion between at least two frames, each consisting of a plurality of samples of an input signal, the method comprising the steps of: (1) selecting for each sample in the first frame a plurality of candidate shifts, (2) computing for each candidate shift a measurement of fit between said sample in said first frame and the corresponding sample at the shifted position in said second frame, (3) selecting for each sample in said first frame the shift with the best associated fit, wherein the collection of selected shifts represents the motion from said first frame to said second frame, and, prior to step (3), (4) adjusting for each sample in said first frame the measurement of fit according to an externally available hypothesis indicating a priori knowledge about how probable it is that certain shifts represent the correct motion. |
