Patent ID: 11861822
Assignee: SAUDI ARABIAN OIL COMPANY
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. An image recognition device comprising:
a camera configured to capture an image of a marker having recesses in at least a top surface of the marker in a field of view of the camera, wherein the camera is selected from the group consisting of: an optical camera and an X-ray camera;
a processor configured to receive the image from the camera; and
a memory accessible by the processor, with the memory configured to store a plurality of modules each comprising code executable by the processor, the plurality of modules comprising:
a contrast mapping module configured to map contrast in the image to generate a set of contrasts from the image;
a contrast variation identifying module configured to identify variations in the set of contrasts;
a mesh creation module responsive to the variations and configured to create a mesh overlaying the image to locate the position of all possible recesses in the image to be in a transformed image; and
a reading module configured to read, from the transformed image, a binary pattern represented by the recesses.