Distinguishing between stock keeping units using marker based methodology

A system comprising;

• an image processor configured to:
• receive a first image including a plurality of items of varying sizes, the plurality of items having a similar appearance and including a reference marker with a known physical dimension;
• and
• perform image recognition to identify an item in the first image and a region of interest of the identified item in the first image;
• a pixel-to-physical dimension ratio engine coupled to the image processor and configured to determine a pixel-to-physical dimension ratio using a first pixel dimension of a region of interest of the reference marker and the known physical dimension of the reference marker;
• and
• a size engine coupled to the pixel-to-physical dimension ratio engine and configured to determine a physical dimension of the identified item using the pixel-to-physical dimension ratio and a second pixel dimension of the region of interest of the identified item and to determine a stock keeping unit identifier distinguishing the identified item of a first size from the plurality of items of varying sizes by matching the physical dimension of the identified item with a reference physical dimension for the identified item stored in a stock keeping unit table.

A computer program product comprising a non-transitory computer readable medium storing a computer readable program, wherein the computer readable program, when executed, causes a computer to perform operations comprising:

• receiving an image including a plurality of items of varying sizes, the plurality of items having a similar appearance and including a reference marker with a known physical dimension;
• performing image recognition to identify an item in the image and a region of interest of the identified item in the image;
• determining a pixel-to-physical dimension ratio using a first pixel dimension of a region of interest of the reference marker and the known physical dimension of the reference marker;
• determining a physical dimension of the identified item using the pixel-to-physical dimension ratio and a second pixel dimension of the region of interest of the identified item;
• and
• determining a stock keeping unit identifier distinguishing the identified item of a first size from the plurality of items of varying sizes by matching the physical dimension of the identified item with a reference physical dimension for the identified item stored in a stock keeping unit table.