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US 11,861,822 B2Granted
Image recognition device and method for retrieving information on a marker
AssigneeSaudi Arabian Oil Company
InventorsEnrico Bovero, Dana Abdullatif
Life of this patent
Estimating the term…
Abstract
An image recognition device and method retrieve information on a marker. The marker encodes information identifying an asset by encoding the information in a binary pattern as recesses and non-recesses in the marker. The image recognition is performed by imaging the marker, mapping contrast in the image, identifying variations in the contrast, creating a mesh overlaying the image, identifying the present or absence of recesses from the mesh, and reading the binary pattern represented by the recesses in the marker.
Claims20
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.
7 more elements
A method comprising:
- capturing an image of a marker using a camera, the marker having recesses in at least a top surface in the field of view of the camera, wherein the camera is selected from the group consisting of:
- an optical camera and an X-ray camera;
- mapping contrast in the image;
- identifying variations in the contrast;
- responsive to the variations, creating a mesh overlaying the image;
- locating the position of recesses in the image;
- identifying the presence or absence of recesses in the image;
- and
- reading a binary pattern represented by the recesses.
6 more elements
Dependencies are inferred from the claim text.