| 摘要 |
PROBLEM TO BE SOLVED: To speedily reproduce information by optically reading a densely recorded code pattern. SOLUTION: A marker set selection part selects marker sets starting from a marker set constituting a block on the side of a scanning direction sequentially, so as to set blocks to be processing objective blocks 82 starting from the block on the side of the scanning direction within a frame 60. When a block, which is has already been processed in the previous frame appears, processing is stopped there, and the processing is shifted to the next frame. |
