Appeal No. 1998-0634
Application 08/455,667
This is a decision on appeal under 35 U.S.C. § 134 from
the final rejection of claims 11-43. Claims 1-10 have been
canceled.
We reverse, but enter new grounds of rejection.
BACKGROUND
The disclosed invention is directed to a method and
apparatus for reconstituting pixels that have previously been
thinned out by offset sampling employed to reduce the
bandwidth of an image signal. The invention teaches that
folding distortion (aliasing noise introduced when a signal
recorded with a first sampling frequency is reproduced with a
second sampling frequency) can be minimized by selecting among
several types of interpolation that may be used to
reconstitute each pixel to be reconstituted. The selection of
the type of interpolation is made by detecting degrees of
correlation between a group of pixels adjacent to the pixel to
be reconstituted and surrounding groups of pixels.
Claim 11 is reproduced below.
11. An image processing apparatus comprising:
input means for inputting an image signal
consisting of a plurality of pixels;
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