PCGAN-CHAR: Progressively Trained Classifier Generative Adversarial Networks for Classification of Noisy Handwritten Bangla Characters

11 Aug 2019  ·  Qun Liu, Edward Collier, Supratik Mukhopadhyay ·

Due to the sparsity of features, noise has proven to be a great inhibitor in the classification of handwritten characters. To combat this, most techniques perform denoising of the data before classification. In this paper, we consolidate the approach by training an all-in-one model that is able to classify even noisy characters. For classification, we progressively train a classifier generative adversarial network on the characters from low to high resolution. We show that by learning the features at each resolution independently a trained model is able to accurately classify characters even in the presence of noise. We experimentally demonstrate the effectiveness of our approach by classifying noisy versions of MNIST, handwritten Bangla Numeral, and Basic Character datasets.

PDF Abstract

Datasets


Task Dataset Model Metric Name Metric Value Global Rank Result Benchmark
Document Image Classification Noisy Bangla Characters PCGAN-CHAR Accuracy 89.54 # 1
Document Image Classification Noisy Bangla Numeral PCGAN-CHAR Accuracy 96.68 # 1
Document Image Classification Noisy MNIST PCGAN-CHAR Accuracy 98.43 # 1
Image Classification Noisy MNIST (AWGN) PCGAN-CHAR Accuracy 98.43 # 1
Image Classification Noisy MNIST (Contrast) PCGAN-CHAR Accuracy 97.25 # 1
Image Classification Noisy MNIST (Motion) PCGAN-CHAR Accuracy 99.20 # 1

Methods


No methods listed for this paper. Add relevant methods here