Invention Grant
- Patent Title: Optical receipt processing
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Application No.: US18058408Application Date: 2022-11-23
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Publication No.: US11887070B2Publication Date: 2024-01-30
- Inventor: Stephen Clark Mitchell , Pavel Melnichuk
- Applicant: GROUPON, INC.
- Applicant Address: US IL Chicago
- Assignee: GROUPON, INC.
- Current Assignee: GROUPON, INC.
- Current Assignee Address: US IL Chicago
- Agency: Alston & Bird LLP
- Main IPC: G06K9/34
- IPC: G06K9/34 ; G06Q20/04 ; G06V30/40 ; G06V30/10 ; G06V30/19 ; G06F18/20

Abstract:
Techniques for providing improved optical character recognition (OCR) for receipts are discussed herein. Some embodiments may provide for a system including one or more servers configured to perform receipt image cleanup, logo identification, and text extraction. The image cleanup may include transforming image data of the receipt by using image parameters values that optimize the logo identification, and performing logo identification using a comparison of the image data with training logos associated with merchants. When a merchant is identified, a second image clean up may be performed by using image parameter values optimized for text extraction. A receipt structure may be used to categorize the extracted text. Improved OCR accuracy is also achieved by applying on format rules of the receipt structure to the extracted text.
Public/Granted literature
- US20230162165A1 OPTICAL RECEIPT PROCESSING Public/Granted day:2023-05-25
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