简体中文 | [English](README_en.md) # Dense Teacher: Dense Pseudo-Labels for Semi-supervised Object Detection ## 模型库 | 模型 | 监督数据比例 | Sup Baseline | Sup Epochs (Iters) | Sup mAPval
0.5:0.95 | Semi mAPval
0.5:0.95 | Semi Epochs (Iters) | 模型下载 | 配置文件 | | :------------: | :---------: | :---------------------: | :---------------------: |:---------------------------: |:----------------------------: | :------------------: |:--------: |:----------: | | DenseTeacher-FCOS | 5% | [sup_config](../baseline/fcos_r50_fpn_2x_coco_sup005.yml) | 24 (8712) | 21.3 | **30.6** | 240 (87120) | [download](https://paddledet.bj.bcebos.com/models/denseteacher_fcos_r50_fpn_coco_semi005.pdparams) | [config](./denseteacher_fcos_r50_fpn_coco_semi005.yml) | | DenseTeacher-FCOS | 10% | [sup_config](../baseline/fcos_r50_fpn_2x_coco_sup010.yml) | 24 (17424) | 26.3 | **35.1** | 240 (174240) | [download](https://paddledet.bj.bcebos.com/models/denseteacher_fcos_r50_fpn_coco_semi010.pdparams) | [config](./denseteacher_fcos_r50_fpn_coco_semi010.yml) | | DenseTeacher-FCOS(LSJ)| 10% | [sup_config](../baseline/fcos_r50_fpn_2x_coco_sup010.yml) | 24 (17424) | 26.3 | **37.1(LSJ)** | 240 (174240) | [download](https://paddledet.bj.bcebos.com/models/denseteacher_fcos_r50_fpn_coco_semi010_lsj.pdparams) | [config](./denseteacher_fcos_r50_fpn_coco_semi010_lsj.yml) | | DenseTeacher-FCOS |100%(full)| [sup_config](../../fcos/fcos_r50_fpn_iou_multiscale_2x_coco.ymll) | 24 (175896) | 42.6 | **44.2** | 24 (175896)| [download](https://paddledet.bj.bcebos.com/models/denseteacher_fcos_r50_fpn_coco_full.pdparams) | [config](./denseteacher_fcos_r50_fpn_coco_full.yml) | **注意:** - 以上模型训练默认使用8 GPUs,监督数据总batch_size默认为16,无监督数据总batch_size默认也为16,默认初始学习率为0.01。如果改动了总batch_size,请按线性比例相应地调整学习率; - **监督数据比例**是指使用的有标签COCO数据集占 COCO train2017 全量训练集的百分比,使用的无标签COCO数据集一般也是相同比例,但具体图片和有标签数据的图片不重合; - `Semi Epochs (Iters)`表示**半监督训练**的模型的 Epochs (Iters),如果使用**自定义数据集**,需自行根据Iters换算到对应的Epochs调整,最好保证总Iters 和COCO数据集的设置较为接近; - `Sup mAP`是**只使用有监督数据训练**的模型的精度,请参照**基础检测器的配置文件** 和 [baseline](../baseline); - `Semi mAP`是**半监督训练**的模型的精度,模型下载和配置文件的链接均为**半监督模型**; - `LSJ`表示 **large-scale jittering**,表示使用更大范围的多尺度训练,可进一步提升精度,但训练速度也会变慢; - 半监督检测的配置讲解,请参照[文档](../README.md/#半监督检测配置); - `Dense Teacher`原文使用`R50-va-caffe`预训练,PaddleDetection中默认使用`R50-vb`预训练,如果使用`R50-vd`结合[SSLD](../../../docs/feature_models/SSLD_PRETRAINED_MODEL.md)的预训练模型,可进一步显著提升检测精度,同时backbone部分配置也需要做出相应更改,如: ```python pretrain_weights: https://paddledet.bj.bcebos.com/models/pretrained/ResNet50_vd_ssld_v2_pretrained.pdparams ResNet: depth: 50 variant: d norm_type: bn freeze_at: 0 return_idx: [0,1,2,3] num_stages: 4 lr_mult_list: [0.05, 0.05, 0.1, 0.15] ``` ## 使用说明 仅训练时必须使用半监督检测的配置文件去训练,评估、预测、部署也可以按基础检测器的配置文件去执行。 ### 训练 ```bash # 单卡训练 (不推荐,需按线性比例相应地调整学习率) CUDA_VISIBLE_DEVICES=0 python tools/train.py -c configs/semi_det/denseteacher/denseteacher_fcos_r50_fpn_coco_semi010.yml --eval # 多卡训练 python -m paddle.distributed.launch --log_dir=denseteacher_fcos_semi010/ --gpus 0,1,2,3,4,5,6,7 tools/train.py -c configs/semi_det/denseteacher/denseteacher_fcos_r50_fpn_coco_semi010.yml --eval ``` ### 评估 ```bash CUDA_VISIBLE_DEVICES=0 python tools/eval.py -c configs/semi_det/denseteacher/denseteacher_fcos_r50_fpn_coco_semi010.yml -o weights=output/denseteacher_fcos_r50_fpn_coco_semi010/model_final.pdparams ``` ### 预测 ```bash CUDA_VISIBLE_DEVICES=0 python tools/infer.py -c configs/semi_det/denseteacher/denseteacher_fcos_r50_fpn_coco_semi010.yml -o weights=output/denseteacher_fcos_r50_fpn_coco_semi010/model_final.pdparams --infer_img=demo/000000014439.jpg ``` ### 部署 部署可以使用半监督检测配置文件,也可以使用基础检测器的配置文件去部署和使用。 ```bash # 导出模型 CUDA_VISIBLE_DEVICES=0 python tools/export_model.py -c configs/semi_det/denseteacher/denseteacher_fcos_r50_fpn_coco_semi010.yml -o weights=https://paddledet.bj.bcebos.com/models/denseteacher_fcos_r50_fpn_coco_semi010.pdparams # 导出权重预测 CUDA_VISIBLE_DEVICES=0 python deploy/python/infer.py --model_dir=output_inference/denseteacher_fcos_r50_fpn_coco_semi010 --image_file=demo/000000014439_640x640.jpg --device=GPU # 部署测速 CUDA_VISIBLE_DEVICES=0 python deploy/python/infer.py --model_dir=output_inference/denseteacher_fcos_r50_fpn_coco_semi010 --image_file=demo/000000014439_640x640.jpg --device=GPU --run_benchmark=True # --run_mode=trt_fp16 # 导出ONNX paddle2onnx --model_dir output_inference/denseteacher_fcos_r50_fpn_coco_semi010/ --model_filename model.pdmodel --params_filename model.pdiparams --opset_version 12 --save_file denseteacher_fcos_r50_fpn_coco_semi010.onnx ``` ## 引用 ``` @article{denseteacher2022, title={Dense Teacher: Dense Pseudo-Labels for Semi-supervised Object Detection}, author={Hongyu Zhou, Zheng Ge, Songtao Liu, Weixin Mao, Zeming Li, Haiyan Yu, Jian Sun}, journal={arXiv preprint arXiv:2207.02541}, year={2022} } ```