发明授权
- 专利标题: Enhanced-density barcode
- 专利标题(中): 增强密度条形码
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申请号: US12366857申请日: 2009-02-06
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公开(公告)号: US08267321B2公开(公告)日: 2012-09-18
- 发明人: Michael Peter Kuyper-Hammond , Michael Charles Osborne , Tamas Visegrady
- 申请人: Michael Peter Kuyper-Hammond , Michael Charles Osborne , Tamas Visegrady
- 申请人地址: US NY Armonk
- 专利权人: International Business Machines Corporation
- 当前专利权人: International Business Machines Corporation
- 当前专利权人地址: US NY Armonk
- 代理机构: Otterstedt, Ellenbogen & Kammer, LLP
- 代理商 Gail H. Zarick
- 优先权: EP08101467 20080211
- 主分类号: G06K7/10
- IPC分类号: G06K7/10
摘要:
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.
公开/授权文献
- US20090200379A1 ENHANCED-DENSITY BARCODE 公开/授权日:2009-08-13
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