发明名称 Character recognition system utilizing pattern matching method
摘要 A character recognition system is disclosed in which an input character is compared to a plurality of standard characters. Each standard character is stored with respect to its black meshes in a first character memory area, and with respect to its white meshes in a second character memory area. The characters are stored in parallel such that one "row" of the memory corresponds to the same mesh area of each character. The input character is stored in a third memory area in terms of either its white or its black meshes. Means are provided which produce the address of the character memory area row which corresponds to an address of a mesh bit within the input character memory. The row is sequentially read out, and a counter is provided for each character. These counters are initiated when logical 1's are present in both the particular input character memory mesh bit and the corresponding character memory area bit. The outputs of the counters are cumulatively stored and compared. In this manner, the stored counter ouputs will correspond either to the extent of similarity or the extent of dissimilarity between the input character and the standard masks, depending upon which character memory area is addressed by the address producing means.
申请公布号 US4510617(A) 申请公布日期 1985.04.09
申请号 US19820351080 申请日期 1982.02.22
申请人 NIPPON ELECTRIC CO., LTD. 发明人 MORI, NOBUHIKO
分类号 G06K9/62;G06K9/64;(IPC1-7):G06K9/68 主分类号 G06K9/62
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