Handwritten Character Recognition Using Block wise Segmentation Technique (BST) in Neural Network 47th Annual Convention of the Computer Society of India.

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Presentation transcript:

Handwritten Character Recognition Using Block wise Segmentation Technique (BST) in Neural Network 47th Annual Convention of the Computer Society of India International Conference on Intelligent Infrastructure Science City Kolkata December 1-2, 2012 Presented By: Apash Roy, CSA, University of North Bengal

Introduction Presented By: Apash Roy, CSA, University of North Bengal Broad area of application Still Now the task is in an ease of Interest

Biological Neuron Presented By: Apash Roy, CSA, University of North Bengal

Artificial Neural Network Presented By: Apash Roy, CSA, University of North Bengal

Important properties of an Artificial Neural Network Network topology Encoding scheme Learning algorithm (Supervised and Unsupervised learning) Presented By: Apash Roy, CSA, University of North Bengal

Character Recognition Presented By: Apash Roy, CSA, University of North Bengal

Pre-Processing Apash Roy, CSA, University of North Bengal Hard Copy Image Scanner / camera /... Pre-processing Vector with Binary value

Pre-Processing... Apash Roy, CSA, University of North Bengal Binary representation of ‘A’ in three different size.

Perceptron learning Apash Roy, CSA, University of North Bengal

Perceptron learning w ij (new) = w ij (old) + c(d i - y i )x i where, w ij : the connection weight from i th input element x i of X to the j th neuron of the network. d i and y i :the desired and actual output of j th neuron. c :the small positive constant representing the learning rate. Apash Roy, CSA, University of North Bengal

Block wise Segmentation Technique (BST) Presented By: Apash Roy, CSA, University of North Bengal

Training With BST Presented By: Apash Roy, CSA, University of North Bengal

Character recognition with BST Presented By: Apash Roy, CSA, University of North Bengal

Some Results Presented By: Apash Roy, CSA, University of North Bengal CharactersNo. of VariantsNo of successPercentage A55100% B5480% C55100% D5480% E55100%

Thank You Apash Roy Department of Computer Science and Application The university of North Bengal Mob Presented By: Apash Roy, CSA, University of North Bengal