Patent ID: 8774497
Filing Date: 2014-07-08
Classification: G01N,G06K

Abstract:
1. A method for locating artefacts in a material, the method comprising the steps of: (a) defining a volume of the material, the volume having a first length, a second length and a third length; (b) obtaining an image of the volume, the image comprising a plurality of pixels; (c) defining a path through the image, the path comprising a plurality of adjoining pixels; (d) defining the path as comprising a repeating sequence of adjoining first path segments, second path segments and third path segments, the first path segments being oriented parallel to the first length, the second path segments being oriented parallel to the second length, and the third path segments being oriented parallel to the third length; (e) for each pixel along the path, analysing a pixel parameter to sense if the pixel represents an artefact; and (f) determining, for each sensed artefact, a respective distance along the path to the corresponding pixel.