Patent ID: 7809179
Filing Date: 2010-10-05
Classification: A61F,G06K,G06T

Abstract:
1. A method of inspecting an absorbent article using a camera and an image analyzer, 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.