Character recognition machine utilizing language processing

Image analysis – Pattern recognition – Context analysis or word recognition

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Details

382229, 36441902, 36441904, G06K 968

Patent

active

060411414

ABSTRACT:
There is disclosed a character recognition machine adapted to recognize Japanese characters such as kanjis and kanas. The machine comprises a character string storage portion, a character extraction portion, a character recognition portion, and a language processing portion. A character string to be recognized is stored as an image in the storage portion. The character extraction portion comprises a network consisting a plurality of interconnected operators each of which has numerous inputs and outputs. An evaluation function which assumes its minimum value when a character extraction produces the best results is calculated by the operators simultaneously so as to minimize the value of the function. The character recognition portion calculates degrees of similarity of a character pattern to various character categories, the character pattern being applied from the character extraction portion. The language processing portion receives these degrees of similarity and selects a character category which seems to provide the must correct combination of characters in terms of vocabulary and grammar.

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Abstract of Japanese Laid-Open Patent Application No. 4-264685, entitled "Character Recognition Method" and published Sep. 21, 1992, Hirofumi Nishida, inventor.
Abstract of Japanese Laid-Open Patent Application No. 4-76678, entitled "Pattern Recognition Device" and published Mar. 11, 1992, Hideyuki Takagi, inventor.
Maruno, et al., D-313, "Documents Recognition System With Cooperation Of Pattern And Symbolic Processing (1)," Intelligent Electronics Laboratory, Central Research Laboratories, Matsushita Elec. Ind. Co., Ltd., 1992, pp. 6-315.
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