Writing and speaking play the most importani roles in human communications. These two forms of verbal behavior have appreciable similarities as well as differences. Although their physical appearances are different- and although. different sets of muscles are used in the execution or articulation of appropriate gestures, the problems they present in the higher levels of language processing seem to be the same, that is, at some level of the language processing in the brain, both must relate to the same grammatical structure of the language in question. Thus, in such a level, a process to produce or to recognize messages in handwriting is thought to have a counterpart in speech.
In this paper, an active model for handwriting analysis and recognition is suggested, which corresponds to the so-called analysis by synthesis method (abbreviated to A-b-S) in speech research, and wide range discussions on the model of human handwriting process are presented from both theoretical and experimental view points.

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