Structure analysis of handwriting using opposing relations

The structure of handwriting is analyzed using an opposing relation between two continuous curves. A fundamental character element (FCE) is defined as a simple curve. A curve regarded as a character in a class is represented by a concatenation of several FCEs and an opposing relation between two characters is defined. Using the opposing relation, the structure of the characters is analyzed. It is seen that in some character system, there are some pairs of characters whose opposing relation is distinctive and can be characterized only by some continuous quantities and the structure of the characters can be determined by their opposing relation