Appeal No. 2004-2297 Page 8
Application No. 10/196,817
Utilizing the estimated motion vectors, a copy of the previous
frame is altered by each vector to produce a prediction of the
current frame. This operation is referred to as motion
compensation (col. 2, lines 12-17).
Brailean further discloses that the need exists for
accurately estimating motion within a video sequence (col. 3,
lines 54 and 55). Brailean discloses (col. 3, lines 56-60) that
"[t]he method and system are required to regularize the
estimation of the . . . DVF . . . and estimate the boundaries or
discontinuities that exist within the DVF." An estimate of
object boundaries is obtained through segmenting the image frame
into regions of similar intensity. The boundaries separating
these regions are considered to the boundaries of objects within
the sequence. This object boundary information is used to
determine the first estimate of the DVF. Using the DVF, a first
estimate of the object boundary is obtained, and any boundary
found to be non-moving is removed.
From this estimate of the moving object boundaries, a
second, improved estimate of the DVF is determined. As a final
step, the improved DVF and the moving object boundaries are
refined to create a third estimate of the DVF and a second
estimate of the moving object boundaries (col. 4, lines 32-59).
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