发明名称 |
Method and apparatus for reading a surface coded pattern |
摘要 |
A method of determining a regular grid pattern from a surface coded pattern that comprises the regular grid pattern interleaved with a further data carrying pattern wherein the surface coded pattern is subject to perspective distortion, the method comprising: extracting a set of straight line hypotheses from the coded surface pattern; clustering the straight line hypotheses by orientation; for each cluster, extracting a set of line pencil hypotheses; generating a set of regular grid hypotheses from pairs of the line pencil hypotheses; and determining the best regular grid hypothesis.
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申请公布号 |
US8300941(B2) |
申请公布日期 |
2012.10.30 |
申请号 |
US20080179762 |
申请日期 |
2008.07.25 |
申请人 |
PILU MAURIZIO;ADAMS GUY;HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. |
发明人 |
PILU MAURIZIO;ADAMS GUY |
分类号 |
G06K9/62;G06F3/033;G06F3/0354 |
主分类号 |
G06K9/62 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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