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# 本文禁止转载!
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本文地址:[https://blog.csdn.net/weixin_44936889/article/details/112002152](https://blog.csdn.net/weixin_44936889/article/details/112002152)
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# 项目简介:
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使用YOLOv5+Deepsort实现车辆行人追踪和计数,代码封装成一个Detector类,更容易嵌入到自己的项目中。
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代码地址(欢迎star):
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[https://github.com/Sharpiless/yolov5-deepsort/](https://github.com/Sharpiless/yolov5-deepsort/)
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最终效果:
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# YOLOv5检测器:
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```python
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class Detector(baseDet):
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def __init__(self):
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super(Detector, self).__init__()
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self.init_model()
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self.build_config()
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def init_model(self):
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self.weights = 'weights/yolov5m.pt'
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self.device = '0' if torch.cuda.is_available() else 'cpu'
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self.device = select_device(self.device)
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model = attempt_load(self.weights, map_location=self.device)
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model.to(self.device).eval()
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model.half()
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# torch.save(model, 'test.pt')
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self.m = model
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self.names = model.module.names if hasattr(
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model, 'module') else model.names
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def preprocess(self, img):
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img0 = img.copy()
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img = letterbox(img, new_shape=self.img_size)[0]
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img = img[:, :, ::-1].transpose(2, 0, 1)
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img = np.ascontiguousarray(img)
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img = torch.from_numpy(img).to(self.device)
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img = img.half() # 半精度
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img /= 255.0 # 图像归一化
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if img.ndimension() == 3:
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img = img.unsqueeze(0)
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return img0, img
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def detect(self, im):
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im0, img = self.preprocess(im)
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pred = self.m(img, augment=False)[0]
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pred = pred.float()
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pred = non_max_suppression(pred, self.threshold, 0.4)
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pred_boxes = []
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for det in pred:
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if det is not None and len(det):
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det[:, :4] = scale_coords(
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img.shape[2:], det[:, :4], im0.shape).round()
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for *x, conf, cls_id in det:
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lbl = self.names[int(cls_id)]
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if not lbl in ['person', 'car', 'truck']:
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continue
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x1, y1 = int(x[0]), int(x[1])
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x2, y2 = int(x[2]), int(x[3])
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pred_boxes.append(
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(x1, y1, x2, y2, lbl, conf))
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return im, pred_boxes
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```
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调用 self.detect 方法返回图像和预测结果
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# DeepSort追踪器:
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```python
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deepsort = DeepSort(cfg.DEEPSORT.REID_CKPT,
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max_dist=cfg.DEEPSORT.MAX_DIST, min_confidence=cfg.DEEPSORT.MIN_CONFIDENCE,
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nms_max_overlap=cfg.DEEPSORT.NMS_MAX_OVERLAP, max_iou_distance=cfg.DEEPSORT.MAX_IOU_DISTANCE,
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max_age=cfg.DEEPSORT.MAX_AGE, n_init=cfg.DEEPSORT.N_INIT, nn_budget=cfg.DEEPSORT.NN_BUDGET,
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use_cuda=True)
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```
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调用 self.update 方法更新追踪结果
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# 运行demo:
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```bash
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python demo.py
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```
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# 训练自己的模型:
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参考我的另一篇博客:
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[【小白CV】手把手教你用YOLOv5训练自己的数据集(从Windows环境配置到模型部署)](https://blog.csdn.net/weixin_44936889/article/details/110661862)
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训练好后放到 weights 文件夹下
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# 调用接口:
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## 创建检测器:
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```python
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from AIDetector_pytorch import Detector
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det = Detector()
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```
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## 调用检测接口:
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```python
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result = det.feedCap(im)
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```
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其中 im 为 BGR 图像
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返回的 result 是字典,result['frame'] 返回可视化后的图像
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# 联系作者:
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> B站:[https://space.bilibili.com/470550823](https://space.bilibili.com/470550823)
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> CSDN:[https://blog.csdn.net/weixin_44936889](https://blog.csdn.net/weixin_44936889)
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> AI Studio:[https://aistudio.baidu.com/aistudio/personalcenter/thirdview/67156](https://aistudio.baidu.com/aistudio/personalcenter/thirdview/67156)
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> Github:[https://github.com/Sharpiless](https://github.com/Sharpiless)
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遵循 GNU General Public License v3.0 协议,标明目标检测部分来源:https://github.com/ultralytics/yolov5/
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