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An end-to-end trainable framework for joint optimization of document enhancement and recognition
A. Ray, M. Sharma, A. Upadhyay, M. Makwana, , A. Trivedi, A. Singh, A. Saini
Published in IEEE Computer Society
Pages: 59 - 64
Recognizing text from degraded and low-resolution document images is still an open challenge in the vision community. Existing text recognition systems require a certain resolution and fails if the document is of low-resolution or heavily degraded or noisy. This paper presents an end-to-end trainable deep-learning based framework for joint optimization of document enhancement and recognition. We are using a generative adversarial network (GAN) based framework to perform image denoising followed by deep back projection network (DBPN) for super-resolution and use these super-resolved features to train a bidirectional long short term memory (BLSTM) with Connectionist Temporal Classification (CTC) for recognition of textual sequences. The entire network is end-to-end trainable and we obtain improved results than state-of-the-art for both the image enhancement and document recognition tasks. We demonstrate results on both printed and handwritten degraded document datasets to show the generalization capability of our proposed robust framework. © 2019 IEEE.
About the journal
JournalData powered by TypesetProceedings of the International Conference on Document Analysis and Recognition, ICDAR
PublisherData powered by TypesetIEEE Computer Society