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# YoloV7
## 论文
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`YOLOv7: Trainable bag-of-freebies sets new state-of-the-art for real-time object detectors`
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- https://arxiv.org/pdf/2207.02696.pdf

## 模型结构
YOLOV7是2022年最新出现的一种YOLO系列目标检测模型,该模型的网络结构包括三个部分:input、backbone和head。

<img src="./Doc/YoloV7_model.png" alt="YOLOV7_02" style="zoom:67%;" />

## 算法原理
YOLOv7的作者提出了 Extended-ELAN (E-ELAN)结构。E-ELAN采用了ELAN类似的特征聚合和特征转移流程,仅在计算模块中采用了类似ShuffleNet的分组卷积、扩张模块和混洗模块,最终通过聚合模块融合特征。通过采
用这种方法可以获得更加多样的特征,同时提高参数的计算和利用效率。
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<img src="./Doc/YoloV7_suanfa.png" alt="YOLOV7_suanfa" style="zoom:67%;" />
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## 环境配置
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### Docker(方法一)
拉取镜像:
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```plaintext
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docker pull image.sourcefind.cn:5000/dcu/admin/base/custom:opencv49_ffmpeg4.2.1_ubuntu20.04-dtk24.04.2
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```

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创建并启动容器:

```plaintext
docker run --shm-size 16g --network=host --name=video_ort --privileged --device=/dev/kfd --device=/dev/dri --group-add video --cap-add=SYS_PTRACE --security-opt seccomp=unconfined -v $PWD/video_ort:/home/video_ort -it <Your Image ID> /bin/bash
```

### Dockerfile(方法二)
```
cd ./docker
docker build --no-cache -t video_ort:test .

docker run --shm-size 16g --network=host --name=video_ort --privileged --device=/dev/kfd --device=/dev/dri --group-add video --cap-add=SYS_PTRACE --security-opt seccomp=unconfined -v $PWD/video_ort:/home/video_ort -it <Your Image ID> /bin/bash
```

## 数据集
根据提供的视频文件,进行目标检测。

## 推理
### 编译工程
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```
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git clone https://developer.sourcefind.cn/codes/modelzoo/video_ort.git
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cd video_ort
mkdir build
cd build
cmake ../
make
```

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### 运行示例
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```
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./Video_Onnx
根据提示选择要运行的示例程序,运行解码卡示例需要提前安装并初始化解码卡。比如执行:

./Video_Onnx 0
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```
运行CPU解码并运行YOLOV3推理示例程序

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## result

![img](./Doc/image.gif)
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### 精度

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## 应用场景
### 算法类别
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目标检测
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### 热点应用行业
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监控,交通,教育
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## 源码仓库及问题反馈
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- http://developer.sourcefind.cn/codes/modelzoo/video_ort.git
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## 参考资料
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- https://github.com/WongKinYiu/yolov7