| 摘要 |
A system includes a processor and a memory. The memory stores a program to cause the processor to decompose a first frame of a video into a first set of frequency subbands. The first frame includes a first subimage. The program causes the processor to decompose a second frame of the video into a second set of frequency subbands and selectively compare portions of the first and second frequency subbands to locate a second subimage of the second frame. The second subimage is substantially identical to the first subimage.
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