ISI's Optical Character Recognition (OCR) software for machine-print and handwriting data

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Overview

VistaOCR

ISI's Optical Character Recognition (OCR) software for machine-print and handwriting data

Publications

"How to Efficiently Increase Resolution in Neural OCR Models". Stephen Rawls, Huaigu Cao, Joe Mathai, Prem Natarajan. IEEE Workshop on Arabic Script Analysis and Recognition (ASAR) 2018.

"Combining Convolutional Neural Networks and LSTMs for Segmentation Free OCR". Stephen Rawls, Huaigu Cao, Senthil Kumar, Prem Natarajan. International Conference on Document Analysis and Recognition (ICDAR) 2017.

"Combining Deep Learning and Language Modeling for Segmentation-free OCR From Raw Pixels". Stephen Rawls, Huaigu Cao, Ekraam Sabir, Prem Natarajan. IEEE Workshop on Arabic Script Analysis and Recognition (ASAR) 2017.

Model

Pretrained Models

Coming Soon. Pre-trained models for English, French, and Arabic Handwriting

Performance Numbers

Coming soon. Expected character and word error rates from public datasets.

How to Train

Coming soon.

How to Decode using Existing Model

Coming soon.

Citation

@inproceedings{vistaocr,
  author    = {Stephen Rawls and Huaigu Cao and Senthil Kumar and Prem Natarjan},
  title     = {Combining Convolutional Neural Networks and LSTMs for Segmentation Free OCR},
  booktitle = {Proc. ICDAR},
  year      = {2017},
  url       = {https://doi.org/10.1109/ICDAR.2017.34},
  doi       = {10.1109/ICDAR.2017.34}
}

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IMGUR5K handwriting set. It is a handwritten in-the-wild dataset, which contains challenging real world handwritten samples from different writers.The dataset is shared as a set of image urls with annotations. This code downloads the images and verifies the hash to the image to avoid data contamination.

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Comments

How Train vistaOCR?

Hello @stephenrawls When i'm trying to train this system with oflline handritten recognition database it returns me the error that : -the the file "desc.json" loaded in this classe ""isi-vista/VistaOCR/blob/master/src/ocr_dataset.py"" with open(os.path.join(data_dir, 'desc.json'), 'r') as fh: self.data_desc = json.load(fh) 1-Is the file "desc.json"" the ground truth of the database used and can you make me please the description of this File and how can implement it?

2-It is this instruction used to train correct and what is the value we must put to "--snapshot-prefix" 👍 python train_cnn_lstm.py --datadir /root/Downloads/data --num-lstm-layers 3 --num-lstm-units 256 --lstm-input-dim=256 --snapshot-prefix /root/Downloads/VistaOCR-master/src/models

thank in advance

opened by Tailor2019 0

ISI's Optical Character Recognition (OCR) software for machine-print and handwriting data

Related tags

Overview

VistaOCR

Publications

Model

Pretrained Models

Performance Numbers

How to Train

How to Decode using Existing Model

Citation

You might also like...

This repository lets you train neural networks models for performing end-to-end full-page handwriting recognition using the Apache MXNet deep learning frameworks on the IAM Dataset.

Handwriting Recognition System based on a deep Convolutional Recurrent Neural Network architecture

OCR software for recognition of handwritten text

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Python package for handwriting and sketching in Jupyter cells

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This tool will help you convert your text to handwriting xD

Comments

How Train vistaOCR?

Owner

ISI Center for Vision, Image, Speech, and Text Analytics

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