# DB与DB++ - [1. 算法简介](#1) - [2. 环境配置](#2) - [3. 模型训练、评估、预测](#3) - [3.1 训练](#3-1) - [3.2 评估](#3-2) - [3.3 预测](#3-3) - [4. 推理部署](#4) - [4.1 Python推理](#4-1) - [4.2 C++推理](#4-2) - [4.3 Serving服务化部署](#4-3) - [4.4 更多推理部署](#4-4) - [5. FAQ](#5) ## 1. 算法简介 论文信息: > [Real-time Scene Text Detection with Differentiable Binarization](https://arxiv.org/abs/1911.08947) > Liao, Minghui and Wan, Zhaoyi and Yao, Cong and Chen, Kai and Bai, Xiang > AAAI, 2020 > [Real-Time Scene Text Detection with Differentiable Binarization and Adaptive Scale Fusion](https://arxiv.org/abs/2202.10304) > Liao, Minghui and Zou, Zhisheng and Wan, Zhaoyi and Yao, Cong and Bai, Xiang > TPAMI, 2022 在ICDAR2015文本检测公开数据集上,算法复现效果如下: |模型|骨干网络|配置文件|precision|recall|Hmean|下载链接| | --- | --- | --- | --- | --- | --- | --- | |DB|ResNet50_vd|[configs/det/det_r50_vd_db.yml](../../configs/det/det_r50_vd_db.yml)|86.41%|78.72%|82.38%|[训练模型](https://paddleocr.bj.bcebos.com/dygraph_v2.0/en/det_r50_vd_db_v2.0_train.tar)| |DB|MobileNetV3|[configs/det/det_mv3_db.yml](../../configs/det/det_mv3_db.yml)|77.29%|73.08%|75.12%|[训练模型](https://paddleocr.bj.bcebos.com/dygraph_v2.0/en/det_mv3_db_v2.0_train.tar)| |DB++|ResNet50|[configs/det/det_r50_db++_icdar15.yml](../../configs/det/det_r50_db++_icdar15.yml)|90.89%|82.66%|86.58%|[合成数据预训练模型](https://paddleocr.bj.bcebos.com/dygraph_v2.1/en_det/ResNet50_dcn_asf_synthtext_pretrained.pdparams)/[训练模型](https://paddleocr.bj.bcebos.com/dygraph_v2.1/en_det/det_r50_db%2B%2B_icdar15_train.tar)| 在TD_TR文本检测公开数据集上,算法复现效果如下: |模型|骨干网络|配置文件|precision|recall|Hmean|下载链接| | --- | --- | --- | --- | --- | --- | --- | |DB++|ResNet50|[configs/det/det_r50_db++_td_tr.yml](../../configs/det/det_r50_db++_td_tr.yml)|92.92%|86.48%|89.58%|[合成数据预训练模型](https://paddleocr.bj.bcebos.com/dygraph_v2.1/en_det/ResNet50_dcn_asf_synthtext_pretrained.pdparams)/[训练模型](https://paddleocr.bj.bcebos.com/dygraph_v2.1/en_det/det_r50_db%2B%2B_td_tr_train.tar)| ## 2. 环境配置 请先参考[《运行环境准备》](./environment.md)配置PaddleOCR运行环境,参考[《项目克隆》](./clone.md)克隆项目代码。 ## 3. 模型训练、评估、预测 请参考[文本检测训练教程](./detection.md)。PaddleOCR对代码进行了模块化,训练不同的检测模型只需要**更换配置文件**即可。 ## 4. 推理部署 ### 4.1 Python推理 首先将DB文本检测训练过程中保存的模型,转换成inference model。以基于Resnet50_vd骨干网络,在ICDAR2015英文数据集训练的模型为例( [模型下载地址](https://paddleocr.bj.bcebos.com/dygraph_v2.0/en/det_r50_vd_db_v2.0_train.tar) ),可以使用如下命令进行转换: ```shell python3 tools/export_model.py -c configs/det/det_r50_vd_db.yml -o Global.pretrained_model=./det_r50_vd_db_v2.0_train/best_accuracy Global.save_inference_dir=./inference/det_db ``` DB文本检测模型推理,可以执行如下命令: ```shell python3 tools/infer/predict_det.py --image_dir="./doc/imgs_en/img_10.jpg" --det_model_dir="./inference/det_db/" --det_algorithm="DB" ``` 可视化文本检测结果默认保存到`./inference_results`文件夹里面,结果文件的名称前缀为'det_res'。结果示例如下: ![](../imgs_results/det_res_img_10_db.jpg) **注意**:由于ICDAR2015数据集只有1000张训练图像,且主要针对英文场景,所以上述模型对中文文本图像检测效果会比较差。 ### 4.2 C++推理 准备好推理模型后,参考[cpp infer](../../deploy/cpp_infer/)教程进行操作即可。 ### 4.3 Serving服务化部署 准备好推理模型后,参考[pdserving](../../deploy/pdserving/)教程进行Serving服务化部署,包括Python Serving和C++ Serving两种模式。 ### 4.4 更多推理部署 DB模型还支持以下推理部署方式: - Paddle2ONNX推理:准备好推理模型后,参考[paddle2onnx](../../deploy/paddle2onnx/)教程操作。 ## 5. FAQ ## 引用 ```bibtex @inproceedings{liao2020real, title={Real-time scene text detection with differentiable binarization}, author={Liao, Minghui and Wan, Zhaoyi and Yao, Cong and Chen, Kai and Bai, Xiang}, booktitle={Proceedings of the AAAI Conference on Artificial Intelligence}, volume={34}, number={07}, pages={11474--11481}, year={2020} } @article{liao2022real, title={Real-Time Scene Text Detection with Differentiable Binarization and Adaptive Scale Fusion}, author={Liao, Minghui and Zou, Zhisheng and Wan, Zhaoyi and Yao, Cong and Bai, Xiang}, journal={IEEE Transactions on Pattern Analysis and Machine Intelligence}, year={2022}, publisher={IEEE} } ```