Invention Grant
- Patent Title: High-speed OCR decode using depleted centerlines
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Application No.: US16557373Application Date: 2019-08-30
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Publication No.: US11295182B2Publication Date: 2022-04-05
- Inventor: Edward Hatton , H. Sprague Ackley
- Applicant: Hand Held Products, Inc.
- Applicant Address: US SC Fort Mill
- Assignee: Hand Held Products, Inc.
- Current Assignee: Hand Held Products, Inc.
- Current Assignee Address: US SC Fort Mill
- Agency: Alston & Bird LLP
- Main IPC: G06K9/78
- IPC: G06K9/78 ; G06K9/32 ; G06K9/72 ; G06K9/44 ; G06K9/62

Abstract:
A method for template matching can include iteratively selecting a template set of points to project over a centerline of a candidate symbol; conducting a template matching analysis; assigning a score to each template set; and selecting a template set with a highest assigned score. For example, the score can depend on proximity of the template points to a center and/or boundaries of a principal tracing path of the symbol. Additionally, one or more template sets having a top rank can be selected for a secondary analysis of proximity of the template points to a boundary of a printing of the symbol. The method can further include using the template with the highest score to interpret the candidate symbol.
Public/Granted literature
- US20190385027A1 HIGH-SPEED OCR DECODE USING DEPLETED CENTERLINES Public/Granted day:2019-12-19
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