Patent ID: 9135691
Filing Date: 2015-09-15
Classification: G06T

Abstract:
1. A method of determining pore size and distribution in a metal casting, said method comprising: providing a computer-based image analysis system comprising an input, an output, a processor, memory and program code comprising at least one algorithm configured to calculate pore spacings comprising at least one of pore-to-pore spacing, pore-to-surface spacing, distance-to-surface spacing and centroid-to-centroid spacing; receiving into said system an image corresponding to a location of interest in a sample of said metal casting; measuring with said system at least one of a porosity volume percent and pore size for a plurality of pores within said image; spatially defining with said system reference-frame coordinates corresponding to a relative position of each of said plurality of pores within said image; operating said processor in conjunction with said at least one algorithm to calculate said pore spacings based on said spatially-defined coordinates; and grouping said measured pore sizes and pore spacings into clusters based on an interpore secondary dendrite arm spacing of fewer than five secondary dendrite arm spacing units apart such that a measurement produced for at least one of said pore size and said pore distribution within said received image is correlated to at least one of an actual porosity volume percent and pore size within said sample.