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Inicio  /  Future Internet  /  Vol: 13 Par: 9 (2021)  /  Artículo
ARTÍCULO
TITULO

A Fusion-Based Hybrid-Feature Approach for Recognition of Unconstrained Offline Handwritten Hindi Characters

Danveer Rajpal    
Akhil Ranjan Garg    
Om Prakash Mahela    
Hassan Haes Alhelou and Pierluigi Siano    

Resumen

Hindi is the official language of India and used by a large population for several public services like postal, bank, judiciary, and public surveys. Efficient management of these services needs language-based automation. The proposed model addresses the problem of handwritten Hindi character recognition using a machine learning approach. The pre-trained DCNN models namely; InceptionV3-Net, VGG19-Net, and ResNet50 were used for the extraction of salient features from the characters? images. A novel approach of fusion is adopted in the proposed work; the DCNN-based features are fused with the handcrafted features received from Bi-orthogonal discrete wavelet transform. The feature size was reduced by the Principal Component Analysis method. The hybrid features were examined with popular classifiers namely; Multi-Layer Perceptron (MLP) and Support Vector Machine (SVM). The recognition cost was reduced by 84.37%. The model achieved significant scores of precision, recall, and F1-measure?98.78%, 98.67%, and 98.69%?with overall recognition accuracy of 98.73%.

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