| 摘要 |
A method of recognizing ID marks encompasses reading the ID marks appended on base materials, and converting the ID marks into bit data; identifying the converted bit data with one of original bit data, when deterioration of the ID mark is within an error correction ability; specifying the converted bit data as damaged data, when the deterioration of the ID mark is beyond the error correction ability; comparing candidate original data with the damaged data and calculates the concordance ratios, the candidate original data is an original bit data not identified by the converted bit data; conjecturing one of candidate original data having the highest concordance ratio as the conjectured bit data of the subject damaged data; and judging whether the conjectured bit data can be adopted as a true bit data for the damaged data.
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