Usage of fuzzy rule and SOM based model to identify a handwritten chemical symbol or structures

The basic components of chemical expressions and its corresponding reactions are chemical symbols and structures. To recognize a handwritten or printed chemical expression, proper identification of the chemical symbols and structures are important. This paper has reviewed the existing algorithms and models used for identifying the organic chemical structures. The objective of this paper is to find out chemical structures and symbols which are in a handwritten format and proposed model is based on fuzzy image segmentation technique.