| 摘要 |
<P>PROBLEM TO BE SOLVED: To detect a bit string as a whole even if failing to detect the bit string with a single image when reading sequential images representing a bit string from a medium. <P>SOLUTION: An image processing device comprises an image reading part 21 for reading an image, a dot array generation part 22 for generating a dot array from the image, a block detection part 23 for detecting blocks on the dot array to generate a code array, a synchronization code detection part 24 for detecting a synchronization code on the code array, a rotation determination part 25 for determining the rotation of the image according to the synchronization code, a code array rotation part 26 for rotating the code array, and an identification code detection part 30, an x-coordinate code detection part 40 and a y-coordinate code detection part 45 for detecting an identification code, an x-coordinate code and a y-coordinate code respectively from the code array. The identification code detection part 30 extracts identification codes from a plurality of sequentially acquired images and determines the correct identification code according to the occurrence frequency of each identification code. <P>COPYRIGHT: (C)2009,JPO&INPIT |
