Appeal No. 2003-0435
Application No. 09/263,921
of pixels in the second image to be encoded is selected. The first image is
broken up into blocks and a search is performed to determine which block in the
first image corresponds to the block to be encoded in the reference image, see
appellant’s specification page 9. Prior to the search, the precision of the pixels in
each image is decreased to reduce the number of bits to be involved when
comparing the blocks. The comparisons are used to generate a group of “best
matching blocks,” see page 10 of the appellant’s specification. These “best
matching blocks” are averaged to produce a “computed best match”.
Claim 1 is representative of the invention.
1. A method for locating a first block in a first picture which
corresponds to a second block in a second picture, said method
comprising:
defining a first search area within said first picture;
reducing the precision of the values of pixels in said first and
second pictures thereby producing pixels with a second precision;
comparing the pixels with said second precision in said second
block with pixels with said second precision in all blocks disposed within
said first search area, thereby producing a plurality of best match
candidates; and
averaging said best match candidates to produce said first block.
2
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