Patent ID: 8422744
Filing Date: 2013-04-16
Classification: G06K

Abstract:
1. A computer based method for determining a characteristic of a material, comprising: accepting as input to a specially programmed portable computer, and using a processor for the specially programmed portable computer, image data, for a surface of a material, wherein the image data is accepted from a device including a light source and a magnifying element and wherein the image data includes a plurality of pixels; creating, using the processor, a binary image from the image data such that each pixel in the plurality of pixels has one of two possible values; segmenting, using the processor, the binary image such that an object occupying an area of the surface is located in the binary image and boundaries surrounding the object are located in the binary image; and, generating, using the processor and the segmented binary image: creating the binary image includes performing, using the processor, discriminant function analysis (DFA) on the image data by: performing DFA includes: