Appeal No. 1997-2398
Application No. 08/354,929
Appellant’s argument (Brief, pages 4 and 8) emphasizes
that Gobert’s motion estimation involves significant error
since Gobert only selects certain pixels in correlating pixel
blocks instead of all of the pixels. Appellant points out
that Gobert’s method undermines the examiner's motivation for
additionally incorporating truncated bit-width pixel
comparison as taught by Music into the Gobert system because
this would compound the existing errors produced in the Gobert
method.
In rebuttal, the examiner disagrees with the appellant
noting that one possessing an ordinary level of skill in the
art would have been driven by reduction constraints to make
the combination of Gobert and Music. In fact, in the
examiner’s view (Answer, pages 12 and 13), the Gobert-Music
combination would have suggested several ways of reducing the
error in motion estimation and improving the accuracy of the
motion estimation. Firstly, as viewed by the examiner,
Gobert’s method includes the addition of more reference pixels
in the actual correlation process for improved accuracy.
Secondly, with the Gobert-Music combination, the examiner
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