Appeal No. 95-3026
Application No. 07/945,061
DECISION ON APPEAL
This is an appeal from the final rejection of claims 1
through 20.
The disclosed invention relates to a method and apparatus
for testing a specimen for resistance to abrasion. The specimen
is optically scanned prior to abrasion to produce a first array
of pixels representing the specimen. After abrasion, the
specimen is optically scanned again to produce a second array of
pixels representing the specimen. A plurality of difference
values of corresponding pixels are produced to quantify the
abrasion of the specimen.
Claim 1 is illustrative of the claimed invention, and it
reads as follows:
1. A method of testing a specimen for resistance to
abrasion, steps of which comprise:
optically scanning the specimen prior to abrasion to produce
a first array of pixels representing the specimen;
abrading the specimen;
optically scanning the specimen after the abrading to
produce an second array of pixels representing the specimen;
producing a plurality of difference values, each one of
which indicates a degree of difference between corresponding
pixels in the first and second arrays; and
quantifying the abrasion of the specimen from the plurality
of difference values.
2
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