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Cascading inspection system and process

  • US 20070058840A1
  • Filed: 09/06/2006
  • Published: 03/15/2007
  • Est. Priority Date: 09/09/2005
  • Status: Active Grant
First Claim
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1. A method of inspecting an absorbent article wherein the absorbent article is constructed from a plurality of layered components including at least one permeable topsheet, an impermeable backsheet, with a pad core disposed between the topsheet and the backsheet, the method comprising the steps of:

  • producing an image from the absorbent article;

    identifying at least one edge in the image, the edge comprising a location in the image where there is a contrast;

    defining a first discrete region in the image based on the location of the at least one edge;

    identifying at least one edge within the first discrete region, the edge comprising a location in the first discrete region where there is a contrast;

    Calculating a center point of the image using the previously identified edges;

    Determining a centerline of the image;

    Calculating a skew of the image from the centerline;

    defining at least one other discrete region in the image;

    identifying at least one other edge within the at least one other discrete region in the image;

    comparing the at least one other edge to the skew of the image.

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