1. A method of defining a motion center in a video sequence, the method comprising: receiving the video sequence of frames; receiving a motion history image for each of a subset of the frames based on the video sequence; identifying, through use of the motion history image, a first data segment having a first orientation, a start location, and a length; identifying, a second data segment having a greatest size and a second orientation, wherein each element of the second data segment is associated with the first data segment; and defining a corresponding motion center for the second data segment with the greatest size.