# BSN ## 简介 ```BibTeX @inproceedings{lin2018bsn, title={Bsn: Boundary sensitive network for temporal action proposal generation}, author={Lin, Tianwei and Zhao, Xu and Su, Haisheng and Wang, Chongjing and Yang, Ming}, booktitle={Proceedings of the European Conference on Computer Vision (ECCV)}, pages={3--19}, year={2018} } ``` ## 模型库 ### ActivityNet feature | 配置文件 | 特征 | GPU 数量 | 预训练 | AR@100 | AUC | GPU 显存占用 (M) | 迭代时间 (s) | ckpt | log | json | | :--------------------------------------- | :------------: | :------: | :----: | :----: | :---: | :--------------: | :-------------------: | :-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------: | :---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------: | :----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------: | | bsn_400x100_1x16_20e_activitynet_feature | cuhk_mean_100 | 1 | None | 74.66 | 66.45 | 41(TEM)+25(PEM) | 0.074(TEM)+0.036(PEM) | [ckpt_tem](https://download.openmmlab.com/mmaction/localization/bsn/bsn_tem_400x100_1x16_20e_activitynet_feature/bsn_tem_400x100_1x16_20e_activitynet_feature_20200619-cd6accc3.pth) [ckpt_pem](https://download.openmmlab.com/mmaction/localization/bsn/bsn_pem_400x100_1x16_20e_activitynet_feature/bsn_pem_400x100_1x16_20e_activitynet_feature_20210203-1c27763d.pth) | [log_tem](https://download.openmmlab.com/mmaction/localization/bsn/bsn_tem_400x100_1x16_20e_activitynet_feature/bsn_tem_400x100_1x16_20e_activitynet_feature.log) [log_pem](https://download.openmmlab.com/mmaction/localization/bsn/bsn_pem_400x100_1x16_20e_activitynet_feature/bsn_pem_400x100_1x16_20e_activitynet_feature.log) | [json_tem](https://download.openmmlab.com/mmaction/localization/bsn/bsn_tem_400x100_1x16_20e_activitynet_feature/bsn_tem_400x100_1x16_20e_activitynet_feature.log.json) [json_pem](https://download.openmmlab.com/mmaction/localization/bsn/bsn_pem_400x100_1x16_20e_activitynet_feature/bsn_pem_400x100_1x16_20e_activitynet_feature.log.json) | | | mmaction_video | 1 | None | 74.93 | 66.74 | 41(TEM)+25(PEM) | 0.074(TEM)+0.036(PEM) | [ckpt_tem](https://download.openmmlab.com/mmaction/localization/bsn/bsn_tem_400x100_1x16_20e_mmaction_video/bsn_tem_400x100_1x16_20e_mmaction_video_20200809-ad6ec626.pth) [ckpt_pem](https://download.openmmlab.com/mmaction/localization/bsn/bsn_pem_400x100_1x16_20e_mmaction_video/bsn_pem_400x100_1x16_20e_mmaction_video_20200809-aa861b26.pth) | [log_tem](https://download.openmmlab.com/mmaction/localization/bsn/bsn_tem_400x100_1x16_20e_mmaction_video/bsn_tem_400x100_1x16_20e_mmaction_video_20200809.log) [log_pem](https://download.openmmlab.com/mmaction/localization/bsn/bsn_pem_400x100_1x16_20e_mmaction_video/bsn_pem_400x100_1x16_20e_mmaction_video_20200809.log) | [json_tem](https://download.openmmlab.com/mmaction/localization/bsn/bsn_tem_400x100_1x16_20e_mmaction_video/bsn_tem_400x100_1x16_20e_mmaction_video_20200809.json) [json_pem](https://download.openmmlab.com/mmaction/localization/bsn/bsn_pem_400x100_1x16_20e_mmaction_video/bsn_pem_400x100_1x16_20e_mmaction_video_20200809.json) | | | mmaction_clip | 1 | None | 75.19 | 66.81 | 41(TEM)+25(PEM) | 0.074(TEM)+0.036(PEM) | [ckpt_tem](https://download.openmmlab.com/mmaction/localization/bsn/bsn_tem_400x100_1x16_20e_mmaction_clip/bsn_tem_400x100_1x16_20e_mmaction_clip_20200809-0a563554.pth) [ckpt_pem](https://download.openmmlab.com/mmaction/localization/bsn/bsn_pem_400x100_1x16_20e_mmaction_clip/bsn_pem_400x100_1x16_20e_mmaction_clip_20200809-e32f61e6.pth) | [log_tem](https://download.openmmlab.com/mmaction/localization/bsn/bsn_tem_400x100_1x16_20e_mmaction_clip/bsn_tem_400x100_1x16_20e_mmaction_clip_20200809.log) [log_pem](https://download.openmmlab.com/mmaction/localization/bsn/bsn_pem_400x100_1x16_20e_mmaction_clip/bsn_pem_400x100_1x16_20e_mmaction_clip_20200809.log) | [json_tem](https://download.openmmlab.com/mmaction/localization/bsn/bsn_tem_400x100_1x16_20e_mmaction_clip/bsn_tem_400x100_1x16_20e_mmaction_clip_20200809.json) [json_pem](https://download.openmmlab.com/mmaction/localization/bsn/bsn_pem_400x100_1x16_20e_mmaction_clip/bsn_pem_400x100_1x16_20e_mmaction_clip_20200809.json) | 注： 1. 这里的 **GPU 数量** 指的是得到模型权重文件对应的 GPU 个数。默认地，MMAction2 所提供的配置文件对应使用 8 块 GPU 进行训练的情况。 依据 [线性缩放规则](https://arxiv.org/abs/1706.02677)，当用户使用不同数量的 GPU 或者每块 GPU 处理不同视频个数时，需要根据批大小等比例地调节学习率。 如，lr=0.01 对应 4 GPUs x 2 video/gpu，以及 lr=0.08 对应 16 GPUs x 4 video/gpu。 2. 对于 **特征** 这一列，`cuhk_mean_100` 表示所使用的特征为利用 [anet2016-cuhk](https://github.com/yjxiong/anet2016-cuhk) 代码库抽取的，被广泛利用的 CUHK ActivityNet 特征， `mmaction_video` 和 `mmaction_clip` 分布表示所使用的特征为利用 MMAction 抽取的，视频级别 ActivityNet 预训练模型的特征；视频片段级别 ActivityNet 预训练模型的特征。 对于数据集准备的细节，用户可参考 [数据集准备文档](/docs/zh_cn/data_preparation.md) 中的 ActivityNet 特征部分。 ## 如何训练 用户可以使用以下指令进行模型训练。 ```shell python tools/train.py ${CONFIG_FILE} [optional arguments] ``` 例如： 1. 在 ActivityNet 特征上训练 BSN(TEM) 模型。 ```shell python tools/train.py configs/localization/bsn/bsn_tem_400x100_1x16_20e_activitynet_feature.py ``` 2. 基于 PGM 的结果训练 BSN(PEM)。 ```shell python tools/train.py configs/localization/bsn/bsn_pem_400x100_1x16_20e_activitynet_feature.py ``` 更多训练细节，可参考 [基础教程](/docs/zh_cn/getting_started.md#训练配置) 中的 **训练配置** 部分。 ## 如何进行推理 用户可以使用以下指令进行模型推理。 1. 推理 TEM 模型。 ```shell # Note: This could not be evaluated. python tools/test.py ${CONFIG_FILE} ${CHECKPOINT_FILE} [optional arguments] ``` 2. 推理 PGM 模型 ```shell python tools/misc/bsn_proposal_generation.py ${CONFIG_FILE} [--mode ${MODE}] ``` 3. 推理 PEM 模型 ```shell python tools/test.py ${CONFIG_FILE} ${CHECKPOINT_FILE} [optional arguments] ``` 例如 1. 利用预训练模型进行 BSN(TEM) 模型的推理。 ```shell python tools/test.py configs/localization/bsn/bsn_tem_400x100_1x16_20e_activitynet_feature.py checkpoints/SOME_CHECKPOINT.pth ``` 2. 利用预训练模型进行 BSN(PGM) 模型的推理 ```shell python tools/misc/bsn_proposal_generation.py configs/localization/bsn/bsn_pgm_400x100_activitynet_feature.py --mode train ``` 3. 推理 BSN(PEM) 模型，并计算 'AR@AN' 指标，输出结果文件。 ```shell # 注：如果需要进行指标验证，需确测试数据的保标注文件包含真实标签 python tools/test.py configs/localization/bsn/bsn_pem_400x100_1x16_20e_activitynet_feature.py checkpoints/SOME_CHECKPOINT.pth --eval AR@AN --out results.json ``` ## 如何测试 用户可以使用以下指令进行模型测试。 1. TEM ```shell # 注：该命令无法进行指标验证 python tools/test.py ${CONFIG_FILE} ${CHECKPOINT_FILE} [optional arguments] ``` 2. PGM ```shell python tools/misc/bsn_proposal_generation.py ${CONFIG_FILE} [--mode ${MODE}] ``` 3. PEM ```shell python tools/test.py ${CONFIG_FILE} ${CHECKPOINT_FILE} [optional arguments] ``` 例如： 1. 在 ActivityNet 数据集上测试 TEM 模型。 ```shell python tools/test.py configs/localization/bsn/bsn_tem_400x100_1x16_20e_activitynet_feature.py checkpoints/SOME_CHECKPOINT.pth ``` 2. 在 ActivityNet 数据集上测试 PGM 模型。 ```shell python tools/misc/bsn_proposal_generation.py configs/localization/bsn/bsn_pgm_400x100_activitynet_feature.py --mode test ``` 3. 测试 PEM 模型，并计算 'AR@AN' 指标，输出结果文件。 ```shell python tools/test.py configs/localization/bsn/bsn_pem_400x100_1x16_20e_activitynet_feature.py checkpoints/SOME_CHECKPOINT.pth --eval AR@AN --out results.json ``` 注： 1. (可选项) 用户可以使用以下指令生成格式化的时序动作候选文件，该文件可被送入动作识别器中（目前只支持 SSN 和 P-GCN，不包括 TSN, I3D 等），以获得时序动作候选的分类结果。 ```shell python tools/data/activitynet/convert_proposal_format.py ``` 更多测试细节，可参考 [基础教程](/docs/zh_cn/getting_started.md#测试某个数据集) 中的 **测试某个数据集** 部分。