Image analysis – Image enhancement or restoration – Object boundary expansion or contraction
Reexamination Certificate
2006-06-06
2006-06-06
Johns, Andrew W. (Department: 2621)
Image analysis
Image enhancement or restoration
Object boundary expansion or contraction
C382S154000, C382S255000, C382S294000
Reexamination Certificate
active
07058233
ABSTRACT:
Systems and methods are provided for constructing a composite image having an extended depth of focus from a plurality of spatially congruent source images of lesser depth of focus. The systems and methods are relatively fast, preserve detail, provide robust results on a variety of unpredictable workpiece features and configurations, and tend to suppress or reduce out-of-focus artifacts. The composite image is constructed by edge and/or boundary analysis to identify well-focused edges or boundaries in the source images. Each particular edge or boundary in the composite image is determined based on the source image containing the best-focused instance of each particular edge or boundary. The composite image is constructed outside of the previously constructed portions by surface analysis to identify well-focused surfaces in the source images, Each particular surface portion in the composite image is determined based on the source image with the best-focused instance of each particular surface portion.
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Edwards Patrick
Johns Andrew W.
Mitutoyo Corporation
Oliff & Berridg,e PLC
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