Recognition of letters in lateral printed strings using a three-layered BP model with feedback connections
✍ Scribed by Katsuji Imai; Kazutoshi Gouhara; Yoshiki Uchikawa
- Book ID
- 104591542
- Publisher
- John Wiley and Sons
- Year
- 1992
- Tongue
- English
- Weight
- 650 KB
- Volume
- 23
- Category
- Article
- ISSN
- 0882-1666
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✦ Synopsis
Abstract
Although there is a simple and fast method to separate and classify letters in lateral printed strings by regarding a valley of the projection of the original image as a gap of letters, this method cannot be applied to cases where adjacent letters are connected or large clutter is involved [1].
This paper proposes a method which separates and recognizes each letter even in such cases as described in the foregoing, using a three‐layered BP model with feedback connections. The recognition experiments using the proposed method were carried out with lateral strings of five printed letters (capital A to E) binarized through a CCD camera. The results show that the method is superior to conventional methods when applied to a letter string recognition system used in the process of factory automation.