| 摘要 |
When a small block area 300 enters a first two-dimensional code 100 during a scan and features of the image within the area of a position 310 in the first two-dimensional code 100 coincide with a two-dimensional code, the block area is specified as containing a code and a recognition process is performed in the nearby areas. When the recognition of the two-dimensional code has been successful, the area of the first two-dimensional code 100 is further extracted. When the extraction of the area of the first two-dimensional code 100 has been successful, the scan using the small block area 300 is further continued to search for a second two-dimensional code 200. With an already recognized entrance to the area of the first two-dimensional code 100, the area is skipped to continue the search. The second two-dimensional code 200 is detected at a high speed by repeating the operation.
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