Patent ID: 8594382

Claim:
A method of determining fiber diameter distribution of a fibrous media, comprising: providing at least one digital image representative of said fibrous media; pre-processing said image to enhance image quality; binarizing said image to produce a binarized image representative of structure of said fibrous media; generating virtual lines on said binarized image; solving for fiber fringe points on each of said generated lines; solving for fiber center points as a mean of said fringe points on each fiber; calculating fiber spacing from said fiber center points; generating and growing measurement circles about said fiber center points until circles intersect at least one fiber fringe; repositioning said measurement circles and center points as needed to avoid fiber intersections, then resizing said repositioned measurement circles to intersect said opposing fringes; calculating fiber diameters from said circles; displaying any of said digital images having said measurement circles drawn thereon; and interacting with an operator to permit said operator to select measurement circles to be ignored in fiber diameter distribution calculations.