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Recognition algorithm for characters at ends of steel billet using features of character structures

For the requirement of identification and trace of steel billet in the procedure of manufacture and management, the ends of steel billets are all printed a series of characters. So, each end of steel billet must be tracked and recognized automatically before they are imported to furnace. Owing to the effect of the bad-imaging environment, there are a lot of difficulties in recognizing characters at ends of steel billet. So, the real-time automatic recognition of characters at ends of steel billet is different from the recognition of the license plates. For the former methods dissatisfied with practical demands, an identification method using features of character structures is introduced by this paper, which greatly lowers error rate and rejection rate effectively.