发明名称 |
2-dimensional code pattern, 2-dimensional code pattern supporting medium, 2-dimensional code pattern generating method, and 2-dimensional code reading apparatus and method |
摘要 |
A 2-dimensional code reading apparatus includes a code position detector receiving an input image that is formed by optically reading 2-dimensional codes, and extracting a 2-dimensional codes from the input image. A data acquisition unit acquires identification information of a document page and positional information of the 2-dimensional codes on the document page, from the 2-dimensional codes. A data decoder performs decoding of the identification information and the positional information. The code position detector is provided with a code frame detector detecting a code frame which defines a fixed region of the 2-dimensional codes, and determining a dot of a target pixel as being a corner dot of the code frame.
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申请公布号 |
US7712664(B2) |
申请公布日期 |
2010.05.11 |
申请号 |
US20050245082 |
申请日期 |
2005.10.07 |
申请人 |
RICOH COMPANY, LTD. |
发明人 |
TAKAHASHI SADAO;ASANO TAIGA;YAMASAKI MAKOTO;BEPPU TOMOHIKO;FURUTA TOSHIYUKI;DOI NOBUYUKI;HATTORI HITOSHI |
分类号 |
G06K7/14;G06K19/06 |
主分类号 |
G06K7/14 |
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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