Key points are not available for this paper at this time.
Many efforts have been made to discriminate, categorize, and quantitate patterns, and to reduce them into a usable machine language. The results have ordinarily been methods or devices with a high degree of specificity. For example, some devices require a special type font; others can read only one type font; still others require magnetic ink.
Bledsoe et al. (Thu,) studied this question.