Abstract: Aiming at the shortcomings of current bank card number recognition algorithm, we proposed an improved feature matching algorithm based on pattern recognition technique, and applied it to bank card number recognition. The improved feature extraction algorithm transformed feature vectors and increased the number of feature learnings,  solved the problem of traditional method identifying bank card number with low accuracy, and ensured the recognition efficiency. Simulation experimental results show that the improved feature extraction algorithm can effectively improve the correct rate of bank card number recognition.

Key words: Euclidean distance, improved feature matching, feature vector, numerical recognition