RRConvNet: Recursive-residual Network for Real-life Character Image Recognition

Tadele Mengiste, Birhanu Belay, Bezawork Tilahun, Tsiyon Worku, Tesfa Tegegne, Tesfa Tegegne

2022

Abstract

Variations in fonts, styles, and ways to write a character have been the major bottlenecks in OCR research. Such problems are swiftly tackled through advancements in deep neural networks (DNNs). However, the number of network parameters and feature reusability are still the issues when applying Deep Convolutional Neural networks(DCNNs) for character image recognition. To address these challenges, in this paper, we propose an extensible and recursive-residual ConvNet architecture (RRConvNet) for real-life character image recognition. Unlike the standard DCCNs, RRConvNet incorporates two extensions: recursive-supervision and skip-connection. To enhance the recognition performance and reduce the number of parameters for extra convolutions, layers of up to three recursions are proposed. Feature maps are used after each recursion for reconstructing the target character. For all recursions of the reconstruction method, the reconstruction layers are the same. The second enhancement is to use a short skip-connection from the input to the reconstruction output layer to reuse the character features maps that are already learned from the prior layer. This skip-connection could be also used as an alternative path for gradients where the gradient is too small. With an overall character recognition accuracy of 98.2 percent, the proposed method achieves a state-of-the-art result on both publicly available and private test datasets.

Paper Citation

in Harvard Style

Mengiste T., Belay B., Tilahun B., Worku T. and Tegegne T. (2022). RRConvNet: Recursive-residual Network for Real-life Character Image Recognition. In Proceedings of the 3rd International Conference on Deep Learning Theory and Applications - Volume 1: DeLTA, ISBN 978-989-758-584-5, pages 110-116. DOI: 10.5220/0011270400003277

in Bibtex Style

@conference{delta22,
author={Tadele Mengiste and Birhanu Belay and Bezawork Tilahun and Tsiyon Worku and Tesfa Tegegne},
title={RRConvNet: Recursive-residual Network for Real-life Character Image Recognition},
booktitle={Proceedings of the 3rd International Conference on Deep Learning Theory and Applications - Volume 1: DeLTA,},
year={2022},
pages={110-116},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0011270400003277},
isbn={978-989-758-584-5},
}

in EndNote Style

TY - CONF

JO - Proceedings of the 3rd International Conference on Deep Learning Theory and Applications - Volume 1: DeLTA,
TI - RRConvNet: Recursive-residual Network for Real-life Character Image Recognition
SN - 978-989-758-584-5
AU - Mengiste T.
AU - Belay B.
AU - Tilahun B.
AU - Worku T.
AU - Tegegne T.
PY - 2022
SP - 110
EP - 116
DO - 10.5220/0011270400003277