Patent ID: 9311720
Filing Date: 2016-04-12
CPC Classification: G06T

Claim Text:
1. A computer-implemented method to process two-dimensional images of a core sample, the method comprising: superimposing, using one or more computer processors, a plurality of polygon shaped images of a substantially cylindrical core sample with a slab cut onto one another to thereby define stacked aligned representations, each image having a representation of a different transverse section of the core sample and a background that substantially surrounds the representation; discarding, using one or more computer processors, the background of the stacked representations; identifying, using one or more computer processors, two or more pixels in the stacked representations that have a value of substantially zero to define a plurality of zero-value pixels; determining, using one or more computer processors, an imaginary best-fit line for the identified zero-value pixels to thereby define a saw cut line; approximating, using one or more computer processors, circular location of peripheries of each of the representation of the superimposed transverse sections to define an approximated slab cut boundary; comparing, using one or more computer processors, a number of non-zero pixels on a first side of the saw cut line with a number of non-zero pixels on a second side of the saw cut line, a smaller portion of each of the representation of transverse section of the core sample being a portion of the superimposed transverse sections associated with the smaller number of non-zero pixels relative to the saw cut line, a larger portion being a portion of the representation associated with the larger number of non-zero pixels; identifying, using one or more computer processors, a point positioned on peripheries of the smaller portion to thereby define a standalone point; determining, using one or more computer processors, an imaginary line perpendicular to the saw cut line that extends through the standalone point to define a reference line; and moving, using one or more computer processors, the smaller portion parallel to the reference line to position the standalone point on peripheries of the approximated slab cut boundary to thereby define a corrected saw cut line image.