Image analysis – Applications – Manufacturing or product inspection
Reexamination Certificate
2007-10-02
2007-10-02
Chawan, Sheela (Department: 2624)
Image analysis
Applications
Manufacturing or product inspection
C250S288000, C250S42300F, C366S132000, C427S008000
Reexamination Certificate
active
10778085
ABSTRACT:
A method and apparatus for performing witness card statistical analysis using image processing techniques to quickly and efficiently generate as-sprayed performance statistics for a spray device, or spray, based upon a comprehensive analysis of as-sprayed witness card stains. Calibration and as-sprayed witness cards are scanned to produce images that are processed using image processing techniques to identify stain areas/dimensions. Calibration stain data is associated with known calibration droplet volumes and used to generate a set of calibration equations that model an observed relationship between the area of calibration stains upon a witness card and the volume of the respective fluid droplets that produced the stains. As-sprayed stain area/dimension information is processed using the developed calibration equations to approximate the volume of as-sprayed droplets. The approach provides a direct quantitative assessment of spray device performance based upon a comprehensive assessment of as-sprayed witness cards, resulting in highly accurate, timely spray device performance statistics.
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Chawan Sheela
Edell Shapiro & Finnan LLC
ITT Manufacturing Enterprises Inc.
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