Methods for determining measurement data of an item
AssigneeWalmart Apollo, LLC
InventorChristopher Joseph Hendrick
Life of this patent
Estimating the term…
Abstract
Provided are a system and method for determining a weight of an item for purchase, comprising determining from a digital image of an item generated by a single camera a volume of the item, the single camera separated from the item at a distance in a horizontal and vertical direction established by a stationary rigid fixture; identifying the item; accessing a database to determine an average weight per volume measurement unit of the identified item; and calculating a weight of the item from the volume and the average weight per volume measurement unit.
Claims6
A method for determining a weight of an item for purchase, comprising:
- determining from a digital image of an non-symmetrical shaped item generated by a single camera a volume of the item in a stationary position on a stationary base, the single camera in front of the item in a stationary position and separated from the item at a distance in a horizontal and vertical direction established by a stationary rigid fixture, a first mirror on one side of the item, a second mirror on another side of the item, wherein determining the volume of the item comprises:
- determining a resolution of the single camera;
- determining a pixel characteristic relative to the item in response to determining the resolution of the single camera;
- capturing by the single camera a front facing image of the item;
- determining from a number of pixels in the front facing image a first area of the item;
- capturing by the single camera a right view image of the item reflected by the first mirror;
- determining from a number of pixels in the right view image a second area of the item;
- capturing by the single camera a left view image of the item reflected by the second mirror;
- determining from a number of pixels in the left view image a third area of the item;
- determining an average area of the first, second, and third areas;
- determining a first width of the item from the front facing image;
- determining a second width of the item from the right view image;
- determining a third width of the item from the left view image;
- determining an average depth of the item from an average width of the first, second, and third widths;
- determining the volume of the item from the average depth and the average area;
- identifying the item using an optical recognition apparatus;
- accessing a database to retrieve an average weight per volume measurement unit of the identified item;
- and
- calculating a weight of the item from the volume and the average weight per volume measurement unit.
Dependencies are inferred from the claim text.