Invention Grant
- Patent Title: Enhanced-density barcode
- Patent Title (中): 增强密度条形码
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Application No.: US13570829Application Date: 2012-08-09
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Publication No.: US08763906B2Publication Date: 2014-07-01
- Inventor: Michael Peter Kuyper-Hammond , Michael Charles Osborne , Tamas Visegrady
- Applicant: Michael Peter Kuyper-Hammond , Michael Charles Osborne , Tamas Visegrady
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agency: Otterstedt, Ellenbogen & Kammer, LLP
- Agent Gail H. Zarick
- Priority: EP08101467 20080211
- Main IPC: G06K7/10
- IPC: G06K7/10

Abstract:
A method of decoding a two-dimensional enhanced-density barcode. A first and a second barcode are encoded in the enhanced-density barcode. The enhanced-density barcode includes a set of blocks. Each block includes a predefined number of sub-pixels. The blocks of the enhanced-density barcode being arranged relatively to each other in a geometrical lattice having a first and a second lattice direction. The method includes the steps of distorting of the enhanced-density barcode in the first lattice direction, resulting in a first distorted barcode, distorting of the enhanced-density barcode in the second lattice direction, resulting in a second distorted barcode, reconstructing the first barcode by low-pass filtering the first distorted barcode, reconstructing the second barcode by low-pass filtering the second distorted barcode.
Public/Granted literature
- US20120298745A1 ENHANCED-DENSITY BARCODE Public/Granted day:2012-11-29
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