Appeal No. 2004-2297 Page 7
Application No. 10/196,817
secondary reference, and that from Rosenberg's disclosure of "GME
calculates displacement for frame sequences as frame-to-frame
displacement in the tracking data calculated for each frame," the
examiner finds evidence of the generation of motion vector
fields.
From our review of Brailean, we find that Brailean is
directed to the use of motion estimation in video coding (col. 1,
lines 6-8). Brailean discloses that the displacement of a pixel
may be represented by a vector which points to the location of
the pixel in a previous image plane. The displacement vector
field (DVF) describes the motion of all pixels between a given
set of image planes, and accurate estimation of the DVF in a
video sequence is crucial in many applications (col. 1, lines
16-24). Motion information is represented using vectors which
point from a location in the current frame to where that same
location originated in the previous frame (col. 1, line 67
through col. 2, line 3). The motion vector associated with a
block in the present frame is found by searching over a
predetermined area in the previous temporally adjacent frame for
a best match (col. 2, lines 6-9). The motion vector points from
the center of the block in the current frame to the center of the
block which provides the best match in the previous frame.
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