Trading card sorter and methods
A sorter processes trading cards in an affordable, accurate, and easy-to-use manner. The sorter includes an input and output bin. A transport path moves cards between the bins and has two scan bars, one above and one below the path. The scan bars capture an image of a top and bottom surface of ones of the cards. A controller coordinates movement of the cards along the path and receives the image for processing. Users interact with the controller by way of an interface to influence the processing. The sorter also includes a coil to detect metal foil on the cards. Other embodiments are envisioned.
1. A method for sorting trading cards having a border, comprising:
imaging with two scan bars in a card sorter along a transport path from an input to an output bin top and bottom surfaces of a plurality of trading cards in the card sorter to receive scanned images of pixels therefor;
cropping out the pixels of the scanned images corresponding to the border thereby leaving rows and columns of pixels corresponding to ones of the pluralities of trading cards;
hashing the rows and columns of pixels corresponding to said ones of the pluralities of trading cards;
comparing the hashing to pluralities of reference hashes stored in a local or remote database available to a controller of the card sorter; and
based on a hamming distance between the hashing and the reference hashes, providing results of various criteria regarding the ones of the pluralities of trading cards.
2. The method of claim 1 , further including providing a user interface for the card sorter, the results being provided on the user interface.
3. The method of claim 1 , wherein the hamming distance results by XORing the hashing and the reference hashes.
4. The method of claim 1 , wherein the comparing further includes comparing if said ones of the pluralities of trading cards are inverted.
5. The method of claim 1 , further including downscaling the rows and columns of the pixels corresponding to said ones of the pluralities of trading cards.
6. The method of claim 1 , further including generating a second hashing for comparison to further pluralities of hashes of said pluralities of reference hashes stored in the local or remote database.
7. The method of claim 1 , further including hashing with a discrete cosine transform.
8. The method of claim 1 , further including establishing a computing connection between the controller and a smart phone, including providing the results to the smart phone.
9. The method of claim 1 , further including hashing in groupings of 8×8 grids of the pixels.
10. The method of claim 1 , further including determining a quality grade of each of the ones of the plurality of trading cards based.
11. The method of claim 1 , further including establishing a computing connection between the controller and a server for said comparing.
12. The method of claim 1 , further including providing a second output bin and depositing the plurality of trading cards into one of the output bin and the second output bin of the card sorter.
13. The method of claim 1 , further including imaging with the two scan bars from above and below the plurality of trading cards.
14. The method of claim 1 , further including determining whether any of the plurality of trading cards include metal foil.
15. The method of claim 1 , further including determining whether any of the pluralities of trading cards include a glossy surface.
16. A method for sorting trading cards in a card sorter, comprising:
providing a user interface for a card sorter having a transport path from an input to an output bin;
imaging with two scan bars tops and bottom surfaces of a plurality of trading cards in the card sorter processed along the transport path to receive scanned images of pixels therefor;
comparing the pixels to pluralities of reference pixel values stored in a local or remote database available to a controller of the card sorter; and
providing results of the comparing on the user interface.
17. The method of claim 16 , further including establishing a computing connection between the controller and a smart phone, the results being provided to the smart phone.
18. The method of claim 16 , wherein the comparing further includes executing hashes of the pixels and the reference pixel values.
19. The method of claim 18 , further including removing background pixels of the pluralities of the trading cards before the executing hashes.
20. The method of claim 16 , further including executing optical character recognition on the tops and bottom surfaces of the pluralities of trading cards.