| US 7,469,066 B2 | ||
| Information coding apparatus, information decoding apparatus, and method and program for the same | ||
| Masahiro Endo, Tokyo (Japan); Yoshiaki Kurokawa, Chiba (Japan); Shogo Yagi, Naka-gun (Japan); and Takaya Tanabe, Tokorozawa (Japan) | ||
| Assigned to Nippon Telegraph and Telephone Corporation, Tokyo (Japan) | ||
| Appl. No. 10/517,625 PCT Filed Apr. 08, 2004, PCT No. PCT/JP2004/005090 § 371(c)(1), (2), (4) Date Dec. 10, 2004, PCT Pub. No. WO2004/090801, PCT Pub. Date Oct. 21, 2004. |
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| Claims priority of application No. 2003-104048 (JP), filed on Apr. 08, 2003. | ||
| Prior Publication US 2005/0226515 A1, Oct. 13, 2005 | ||
| Int. Cl. G06K 9/36 (2006.01) | ||
| U.S. Cl. 382—232 [382/233; 382/240] | 18 Claims |
| 1. An information coding apparatus comprising a code block conversion unit which codes information bits which are inputted
as a block of a two-dimensional image made up from m (where m is a natural number)×n (where n is a natural number) pixels,
wherein the code block conversion unit arranges pixels which represent the information bits in a code area, which is an area
of (m−o)×(n−p) pixels within a code block of m×n pixels (where o and p are natural numbers which satisfy 0<o<m and 0<p<n);
and arranges pixels which represent the information bits in a guide area, which is an area of the other pixels within the
code block of m×n pixels.
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