Point Feature Based Recognition of Handwritten Meetei Mayek Script
In this article we are proposing a hybrid point feature based recognition of Meetei Mayek optical handwritten characters. Four different interesting point features namely Harris corner detector, Laplacian-of-Gaussian (Log) detector, Harris-Laplacian detec
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Abstract In this article we are proposing a hybrid point feature based recognition of Meetei Mayek optical handwritten characters. Four different interesting point features namely Harris corner detector, Laplacian-of-Gaussian (Log) detector, Harris-Laplacian detector, and Gilles feature are used to detect different fixed number of interesting feature points. The [X, Y] coordinates of these interesting points are used as feature vector. Four different feature vectors are generated out of these and we have developed a fused feature out of it. Feature reduction is done by PCA, and accuracy calculations for all these features are performed using support vector machine. A comparative analysis is done to get a feature that shows consistency in accuracy before and after applying feature reduction. Experimental result shows that fused feature FV5 shows better accuracy in all different situations. Before reduction it shows 97.16% accuracy, on reduction by probabilistic PCA it shows 94.15% accuracy, and PCA-based reduction 97.16% accuracy, which is best in all situations as compared to other features.
Keywords Point feature Meetei Mayek Feature reduction SVM
Optical character recognition
1 Introduction Northeast India consists of eight states called eight sisters, the states of Arunachal Pradesh, Assam, Manipur, Meghalaya, Mizoram, Nagaland, Sikkim, and Tripura. Except Assamese and Bengali, most of the languages used by the native speakers
C.J. Kumar (&) Department of Computer Science & IT, Cotton University, Guwahati, India e-mail: [email protected] S.K. Kalita Department of Computer Science, Gauhati University, Guwahati, India e-mail: [email protected] © Springer Nature Singapore Pte Ltd. 2018 A. Kalam et al. (eds.), Advances in Electronics, Communication and Computing, Lecture Notes in Electrical Engineering 443, https://doi.org/10.1007/978-981-10-4765-7_46
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C.J. Kumar and S.K. Kalita
are of Sino-Tibetan and Austro-Asiatic origin. Meetei is one of the major northeast Indian regional languages. It is primarily spoken by majority of the native speaker in the state of Manipur. Meetei Mayek script is used for writing Meetei (Manipuri) language. The script has a long history behind it. The Meetei Mayek script was used in earlier days for writing Meetei Mayek till eighteenth century, and most of the historical documents found are written using Meetei Mayek script. However, there was a mass destruction of documents written in Meetei Mayek in eighteenth century, and Bengali script was adopted for writing Meetei thereafter. Good news is that researchers worked over the script and finally in 1976, they have finalized the characters in the script having 18 characters and added 9 more letters which are derivatives of previous letters and suggested the government to make the script popular in the state of Manipur [1]. In 1983, the education department of Manipur Government starts publishing text book written in Meetei Mayek.
1.1
Meetei Mayek Script
Meetei Mayek script has 18 characters in original
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