Appeal No. 1997-2398
Application No. 08/354,929
comparator computes a movement vector representing the
relative position of the identified blocks.
Claim 1 is the only independent claim on appeal, and it
reads as follow:
1. A method of estimating movement in an image produced by a
video signal, comprising the steps of:
a) comparing picture element values in a reference block
of a first video image with corresponding picture element
values in a search zone block of a second video image, wherein
said comparison is performed using a number of bits N, less
than all of the bits used to represent a picture element
value; and
b) computing a movement vector using a relative position
of a matching search zone block to said reference block,
wherein said matching search zone block gives a highest
correlation of picture element values with the picture element
values of said reference block.
The prior art relied upon by the examiner as evidence of
obviousness are:
Music et al. (Music) 4,914,508 Apr. 3, 1990
Gobert et al. (Gobert) 5,247,586 Sep. 21, 1993
Claims 1, 2, 8-12 and 22 stand rejected under 35 U.S.C.
§ 103(a) as being unpatentable over Gobert in view of Music.
Rather than reiterate the examiner’s full statement of
the above-noted rejection and the conflicting viewpoints
advanced by the examiner and appellant regarding those
3
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