Image analysis – Pattern recognition – Template matching
Reexamination Certificate
2006-05-02
2006-05-02
Werner, Brian (Department: 2621)
Image analysis
Pattern recognition
Template matching
C382S261000
Reexamination Certificate
active
07039236
ABSTRACT:
An image processor for generating, from a surface image of an object having a pattern, a processed image having a distinct contrast between the pattern and a background, is provided. This image processor comprises a first smoothing filter for generating a first smoothed image; a second smoothing filter for generating a second smoothed image; a weighting unit for multiplying each of pixel values of the first smoothed image by a weight coefficient of 1 or more to determine a weighted pixel value; a differential image generator for subtracting each of weighted pixel values provided by the weighting unit from a pixel value of a corresponding pixel of the second smoothed image to generate a differential image; and an image extracting unit for extracting pixel values having the positive sign from the differential image to obtain the processed image. For example, this image processor can be utilized in a pattern recognition apparatus.
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Hashimoto Yoshihito
Ikeda Kazutaka
Matsushita Electric & Works Ltd.
Schaffer Jonathan
Werner Brian
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