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# PaddleOCR
OCR algorithms with PaddlePaddle (still under develop)
# 简介
PaddleOCR旨在打造一套丰富、领先、且实用的文字检测、识别模型/工具库,助力使用者训练出更好的模型,并应用落地。
【这里加上效果图】
## 文档教程
- [快速安装](./doc/installation.md)
- [文本识别模型训练/评估/预测](./doc/detection.md)
- [文本预测模型训练/评估/预测](./doc/recognition.md)
## 特性:
- 超轻量级模型
-(检测模型4.1M + 识别模型4.5M = 8.6M)
- 支持竖排文字
- (单模型同时支持横排和竖排文字识别)
- 支持长文本识别
- 支持中英文数字组合识别
- 提供训练代码
- 支持模型部署
## 文本检测算法:
PaddleOCR提供的文本检测算法列表:
- [EAST](https://arxiv.org/abs/1704.03155)
- [DB](https://arxiv.org/abs/1911.08947)
- [SAST](https://arxiv.org/abs/1908.05498)
算法效果:
|模型|骨干网络|数据集|Hmean|
|-|-|-|-|
|EAST|ResNet50_vd|ICDAR2015|85.85%|
|EAST|MobileNetV3|ICDAR2015|79.08%|
|DB|ResNet50_vd|ICDAR2015|83.30%|
|DB|MobileNetV3|ICDAR2015|73.00%|
PaddleOCR文本检测算法的训练与使用请参考[文档](./doc/detection.md)
## 文本识别算法:
PaddleOCR提供的文本识别算法列表:
- (CRNN)[https://arxiv.org/abs/1507.05717]
- [Rosetta](https://arxiv.org/abs/1910.05085)
- [STAR-Net](http://www.bmva.org/bmvc/2016/papers/paper043/index.html)
- [RARE](https://arxiv.org/abs/1603.03915v1)
- [SRN]((https://arxiv.org/abs/2003.12294))(百度自研)
算法效果:
以下指标是在IIIT, SVT, IC03, IC13, IC15, SVTP, CUTE数据集上的评测结果的平均。
|模型|骨干网络|ACC|
|-|-|-|
|Rosetta|Resnet34_vd|80.24%|
|Rosetta|MobileNetV3|78.16%|
|CRNN|Resnet34_vd|82.20%|
|CRNN|MobileNetV3|79.37%|
|STAR-Net|Resnet34_vd|83.93%|
|STAR-Net|MobileNetV3|81.56%|
|RARE|Resnet34_vd|84.90%|
|RARE|MobileNetV3|83.32%|
PaddleOCR文本识别算法的训练与使用请参考[文档](./doc/recognition.md)
## 端到端算法
PaddleOCR即将开源百度自研端对端OCR模型[End2End-PSL](https://arxiv.org/abs/1909.07808),敬请关注。
- End2End-PSL (comming soon)
# 参考文献
```
EAST:
@inproceedings{zhou2017east,
title={EAST: an efficient and accurate scene text detector},
author={Zhou, Xinyu and Yao, Cong and Wen, He and Wang, Yuzhi and Zhou, Shuchang and He, Weiran and Liang, Jiajun},
booktitle={Proceedings of the IEEE conference on Computer Vision and Pattern Recognition},
pages={5551--5560},
year={2017}
}
DB:
@article{liao2019real,
title={Real-time Scene Text Detection with Differentiable Binarization},
author={Liao, Minghui and Wan, Zhaoyi and Yao, Cong and Chen, Kai and Bai, Xiang},
journal={arXiv preprint arXiv:1911.08947},
year={2019}
}
DTRB:
@inproceedings{baek2019wrong,
title={What is wrong with scene text recognition model comparisons? dataset and model analysis},
author={Baek, Jeonghun and Kim, Geewook and Lee, Junyeop and Park, Sungrae and Han, Dongyoon and Yun, Sangdoo and Oh, Seong Joon and Lee, Hwalsuk},
booktitle={Proceedings of the IEEE International Conference on Computer Vision},
pages={4715--4723},
year={2019}
}
SAST:
@inproceedings{wang2019single,
title={A Single-Shot Arbitrarily-Shaped Text Detector based on Context Attended Multi-Task Learning},
author={Wang, Pengfei and Zhang, Chengquan and Qi, Fei and Huang, Zuming and En, Mengyi and Han, Junyu and Liu, Jingtuo and Ding, Errui and Shi, Guangming},
booktitle={Proceedings of the 27th ACM International Conference on Multimedia},
pages={1277--1285},
year={2019}
}
SRN:
@article{yu2020towards,
title={Towards Accurate Scene Text Recognition with Semantic Reasoning Networks},
author={Yu, Deli and Li, Xuan and Zhang, Chengquan and Han, Junyu and Liu, Jingtuo and Ding, Errui},
journal={arXiv preprint arXiv:2003.12294},
year={2020}
}
end2end-psl:
@inproceedings{sun2019chinese,
title={Chinese Street View Text: Large-scale Chinese Text Reading with Partially Supervised Learning},
author={Sun, Yipeng and Liu, Jiaming and Liu, Wei and Han, Junyu and Ding, Errui and Liu, Jingtuo},
booktitle={Proceedings of the IEEE International Conference on Computer Vision},
pages={9086--9095},
year={2019}
}
```
......@@ -35,15 +35,15 @@ json.dumps编码前的图像标注信息是包含多个字典的list,字典中
首先下载pretrain model,PaddleOCR的检测模型目前支持两种backbone,分别是MobileNetV3、ResNet50_vd,
您可以根据需求使用[PaddleClas](https://github.com/PaddlePaddle/PaddleClas/tree/master/ppcls/modeling/architectures)中的模型更换backbone。
```
cd PaddleOCR/
# 下载MobileNetV3的预训练模型
wget -P /PaddleOCR/pretrained_model/ 模型链接
wget -P /PaddleOCR/pretrain_models/ 模型链接
# 下载ResNet50的预训练模型
wget -P /PaddleOCR/pretrained_model/ 模型链接
wget -P /PaddleOCR/pretrain_models/ 模型链接
```
**启动训练**
```
cd PaddleOCR/
python3 tools/train.py -c configs/det/det_db_mv3.yml
```
......
### 2.1 快速安装
## 快速安装
建议使用我们提供的docker运行PaddleOCR,有关docker使用请参考[链接](https://docs.docker.com/get-started/)
1. 准备docker环境。第一次使用这个镜像,会自动下载该镜像,请耐心等待。
```
# 切换到工作目录下
cd /home/Projects
# 首次运行需创建一个docker容器,再次运行时不需要运行当前命令
# 创建一个名字为pdocr的docker容器,并将当前目录映射到容器的/data目录下
sudo nvidia-docker run --name pdocr -v $PWD:/data --network=host -it hub.baidubce.com/paddlepaddle/paddle:latest-gpu-cuda9.0-cudnn7-dev /bin/bash
# ctrl+P+Q可退出docker,重新进入docker使用如下命令
sudo nvidia-docker container exec -it pdocr /bin/bash
```
2. 克隆PaddleOCR repo代码
......@@ -20,3 +25,10 @@ cd PaddleOCR
pip3 install --upgrade pip
pip3 install -r requirements.txt
```
## 快速运行
```
python3 tools/infer/predict_eval.py --image_file="./"
```
【可视化运行结果】
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