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A novel OCR system for calculating handwritten persian arithmetic expressions

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3 Author(s)
Khalighi, S. ; Electical & Comput. Dept., Qazvin Azad Univ., Qazvin, Iran ; Tirdad, P. ; Rabiee, H.R.

In this paper we propose a novel OCR system which can recognize and calculate handwritten Persian arithmetic expressions without using a keyboard or a memory to store the intermediate results. Our research is composed of two major phases: character recognition and calculation. The recognition phase is based on a new approach for feature extraction. Fuzzy Support Vector Machines (FSVMs) are employed as the classifier. In calculation phase a simple algorithm is used for calculating the recognized arithmetic expression. The performance of the system is evaluated on a database consisting of 3400 digits and symbols written by 20 different people. 92 percent accuracy in recognition proves the good performance of our system.

Published in:

Signal Processing and Information Technology (ISSPIT), 2009 IEEE International Symposium on

Date of Conference:

14-17 Dec. 2009