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<br>

[Ultralytics](https://www.ultralytics.com/) 基于多年在计算机视觉和人工智能领域的基础研究，创造了尖端的、最先进的 (SOTA) [YOLO 模型](https://www.ultralytics.com/yolo)。我们的模型不断更新以提高性能和灵活性，具有**速度快**、**精度高**和**易于使用**的特点。它们在[目标检测](https://docs.ultralytics.com/tasks/detect/)、[跟踪](https://docs.ultralytics.com/modes/track/)、[实例分割](https://docs.ultralytics.com/tasks/segment/)、[图像分类](https://docs.ultralytics.com/tasks/classify/)和[姿态估计](https://docs.ultralytics.com/tasks/pose/)任务中表现出色。

在 [Ultralytics 文档](https://docs.ultralytics.com/)中查找详细文档。通过 [GitHub Issues](https://github.com/ultralytics/ultralytics/issues/new/choose) 获取支持。加入 [Discord](https://discord.com/invite/ultralytics)、[Reddit](https://www.reddit.com/r/ultralytics/) 和 [Ultralytics 社区论坛](https://community.ultralytics.com/)参与讨论！

如需商业用途，请在 [Ultralytics 授权许可](https://www.ultralytics.com/license)申请企业许可证。

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## 📄 文档

请参阅下文了解快速安装和使用示例。有关训练、验证、预测和部署的全面指南，请参阅我们的完整 [Ultralytics 文档](https://docs.ultralytics.com/)。

<details open>
<summary>安装</summary>

在 [**Python>=3.8**](https://www.python.org/) 环境中安装 `ultralytics` 包，包括所有[依赖项](https://github.com/ultralytics/ultralytics/blob/main/pyproject.toml)，并确保 [**PyTorch>=1.8**](https://pytorch.org/get-started/locally/)。

[![PyPI - Version](https://img.shields.io/pypi/v/ultralytics?logo=pypi&logoColor=white)](https://pypi.org/project/ultralytics/) [![Ultralytics Downloads](https://static.pepy.tech/badge/ultralytics)](https://clickpy.clickhouse.com/dashboard/ultralytics) [![PyPI - Python Version](https://img.shields.io/pypi/pyversions/ultralytics?logo=python&logoColor=gold)](https://pypi.org/project/ultralytics/)

```bash
pip install ultralytics
```

有关其他安装方法，包括 [Conda](https://anaconda.org/conda-forge/ultralytics)、[Docker](https://hub.docker.com/r/ultralytics/ultralytics) 以及通过 Git 从源代码构建，请查阅[快速入门指南](https://docs.ultralytics.com/quickstart/)。

[![Conda Version](https://img.shields.io/conda/vn/conda-forge/ultralytics?logo=condaforge)](https://anaconda.org/conda-forge/ultralytics) [![Docker Image Version](https://img.shields.io/docker/v/ultralytics/ultralytics?sort=semver&logo=docker)](https://hub.docker.com/r/ultralytics/ultralytics) [![Ultralytics Docker Pulls](https://img.shields.io/docker/pulls/ultralytics/ultralytics?logo=docker)](https://hub.docker.com/r/ultralytics/ultralytics)

</details>

<details open>
<summary>使用方法</summary>

### CLI

您可以直接通过命令行界面 (CLI) 使用 `yolo` 命令来运行 Ultralytics YOLO：

```bash
# 使用预训练的 YOLO 模型 (例如 YOLO26n) 对图像进行预测
yolo predict model=yolo26n.pt source='https://ultralytics.com/images/bus.jpg'
```

`yolo` 命令支持各种任务和模式，并接受额外的参数，如 `imgsz=640`。浏览 YOLO [CLI 文档](https://docs.ultralytics.com/usage/cli/)获取更多示例。

### Python

Ultralytics YOLO 也可以直接集成到您的 Python 项目中。它接受与 CLI 相同的[配置参数](https://docs.ultralytics.com/usage/cfg/)：

```python
from ultralytics import YOLO

# 加载一个预训练的 YOLO26n 模型
model = YOLO("yolo26n.pt")

# 在 COCO8 数据集上训练模型 100 个周期
train_results = model.train(
    data="coco8.yaml",  # 数据集配置文件路径
    epochs=100,  # 训练周期数
    imgsz=640,  # 训练图像尺寸
    device="cpu",  # 运行设备 (例如 'cpu', 0, [0,1,2,3])
)

# 评估模型在验证集上的性能
metrics = model.val()

# 对图像执行目标检测
results = model("path/to/image.jpg")  # 对图像进行预测
results[0].show()  # 显示结果

# 将模型导出为 ONNX 格式以进行部署
path = model.export(format="onnx")  # 返回导出模型的路径
```

在 YOLO [Python 文档](https://docs.ultralytics.com/usage/python/)中发现更多示例。

</details>

## ✨ 模型

Ultralytics 支持广泛的 YOLO 模型，从早期的版本如 [YOLOv3](https://docs.ultralytics.com/models/yolov3/) 到最新的 [YOLO26](https://docs.ultralytics.com/models/yolo26/)。下表展示了在 [COCO](https://docs.ultralytics.com/datasets/detect/coco/) 数据集上预训练的 YOLO26 模型，用于[检测](https://docs.ultralytics.com/tasks/detect/)、[分割](https://docs.ultralytics.com/tasks/segment/)和[姿态估计](https://docs.ultralytics.com/tasks/pose/)任务。此外，还提供了在 [ImageNet](https://docs.ultralytics.com/datasets/classify/imagenet/) 数据集上预训练的[分类](https://docs.ultralytics.com/tasks/classify/)模型。[跟踪](https://docs.ultralytics.com/modes/track/)模式与所有检测、分割和姿态模型兼容。所有[模型](https://docs.ultralytics.com/models/)在首次使用时都会自动从最新的 Ultralytics [发布版本](https://github.com/ultralytics/assets/releases)下载。

<a href="https://docs.ultralytics.com/tasks/" target="_blank">
    <img width="100%" src="https://github.com/ultralytics/docs/releases/download/0/ultralytics-yolov8-tasks-banner.avif" alt="Ultralytics YOLO supported tasks">
</a>
<br>
<br>

<details open><summary>检测 (COCO)</summary>

浏览[检测文档](https://docs.ultralytics.com/tasks/detect/)获取使用示例。这些模型在 [COCO 数据集](https://cocodataset.org/)上训练，包含 80 个对象类别。

| 模型                                                                                 | 尺寸<br><sup>(像素) | mAP<sup>val<br>50-95 | 速度<br><sup>CPU ONNX<br>(毫秒) | 速度<br><sup>T4 TensorRT10<br>(毫秒) | 参数<br><sup>(百万) | FLOPs<br><sup>(十亿) |
| ------------------------------------------------------------------------------------ | ------------------- | -------------------- | ------------------------------- | ------------------------------------ | ------------------- | -------------------- |
| [YOLO26n](https://github.com/ultralytics/assets/releases/download/v8.4.0/yolo26n.pt) | 640                 | 40.9                 | 38.9 ± 0.7                      | 1.7 ± 0.0                            | 2.4                 | 5.4                  |
| [YOLO26s](https://github.com/ultralytics/assets/releases/download/v8.4.0/yolo26s.pt) | 640                 | 48.6                 | 87.2 ± 0.9                      | 2.5 ± 0.0                            | 9.5                 | 20.7                 |
| [YOLO26m](https://github.com/ultralytics/assets/releases/download/v8.4.0/yolo26m.pt) | 640                 | 53.1                 | 220.0 ± 1.4                     | 4.7 ± 0.1                            | 20.4                | 68.2                 |
| [YOLO26l](https://github.com/ultralytics/assets/releases/download/v8.4.0/yolo26l.pt) | 640                 | 55.0                 | 286.2 ± 2.0                     | 6.2 ± 0.2                            | 24.8                | 86.4                 |
| [YOLO26x](https://github.com/ultralytics/assets/releases/download/v8.4.0/yolo26x.pt) | 640                 | 57.5                 | 525.8 ± 4.0                     | 11.8 ± 0.2                           | 55.7                | 193.9                |

- **mAP<sup>val</sup>** 值指的是在 [COCO val2017](https://cocodataset.org/) 数据集上的单模型单尺度性能。详见 [YOLO 性能指标](https://docs.ultralytics.com/guides/yolo-performance-metrics/)。<br>使用 `yolo val detect data=coco.yaml device=0` 复现结果。
- **速度** 指标是在 [Amazon EC2 P4d](https://aws.amazon.com/ec2/instance-types/p4/) 实例上对 COCO val 图像进行平均测量的。CPU 速度使用 [ONNX](https://onnx.ai/) 导出进行测量。GPU 速度使用 [TensorRT](https://developer.nvidia.com/tensorrt) 导出进行测量。<br>使用 `yolo val detect data=coco.yaml batch=1 device=0|cpu` 复现结果。

</details>

<details><summary>分割 (COCO)</summary>

请参阅[分割文档](https://docs.ultralytics.com/tasks/segment/)获取使用示例。这些模型在 [COCO-Seg](https://docs.ultralytics.com/datasets/segment/coco/) 数据集上训练，包含 80 个类别。

| 模型                                                                                         | 尺寸<br><sup>(像素) | mAP<sup>box<br>50-95 | mAP<sup>mask<br>50-95 | 速度<br><sup>CPU ONNX<br>(毫秒) | 速度<br><sup>T4 TensorRT10<br>(毫秒) | 参数<br><sup>(百万) | FLOPs<br><sup>(十亿) |
| -------------------------------------------------------------------------------------------- | ------------------- | -------------------- | --------------------- | ------------------------------- | ------------------------------------ | ------------------- | -------------------- |
| [YOLO26n-seg](https://github.com/ultralytics/assets/releases/download/v8.4.0/yolo26n-seg.pt) | 640                 | 39.6                 | 33.9                  | 53.3 ± 0.5                      | 2.1 ± 0.0                            | 2.7                 | 9.1                  |
| [YOLO26s-seg](https://github.com/ultralytics/assets/releases/download/v8.4.0/yolo26s-seg.pt) | 640                 | 47.3                 | 40.0                  | 118.4 ± 0.9                     | 3.3 ± 0.0                            | 10.4                | 34.2                 |
| [YOLO26m-seg](https://github.com/ultralytics/assets/releases/download/v8.4.0/yolo26m-seg.pt) | 640                 | 52.5                 | 44.1                  | 328.2 ± 2.4                     | 6.7 ± 0.1                            | 23.6                | 121.5                |
| [YOLO26l-seg](https://github.com/ultralytics/assets/releases/download/v8.4.0/yolo26l-seg.pt) | 640                 | 54.4                 | 45.5                  | 387.0 ± 3.7                     | 8.0 ± 0.1                            | 28.0                | 139.8                |
| [YOLO26x-seg](https://github.com/ultralytics/assets/releases/download/v8.4.0/yolo26x-seg.pt) | 640                 | 56.5                 | 47.0                  | 787.0 ± 6.8                     | 16.4 ± 0.1                           | 62.8                | 313.5                |

- **mAP<sup>val</sup>** 值指的是在 [COCO val2017](https://cocodataset.org/) 数据集上的单模型单尺度性能。详见 [YOLO 性能指标](https://docs.ultralytics.com/guides/yolo-performance-metrics/)。<br>使用 `yolo val segment data=coco.yaml device=0` 复现结果。
- **速度** 指标是在 [Amazon EC2 P4d](https://aws.amazon.com/ec2/instance-types/p4/) 实例上对 COCO val 图像进行平均测量的。CPU 速度使用 [ONNX](https://onnx.ai/) 导出进行测量。GPU 速度使用 [TensorRT](https://developer.nvidia.com/tensorrt) 导出进行测量。<br>使用 `yolo val segment data=coco.yaml batch=1 device=0|cpu` 复现结果。

</details>

<details><summary>分类 (ImageNet)</summary>

请查阅[分类文档](https://docs.ultralytics.com/tasks/classify/)获取使用示例。这些模型在 [ImageNet](https://docs.ultralytics.com/datasets/classify/imagenet/) 数据集上训练，涵盖 1000 个类别。

| 模型                                                                                         | 尺寸<br><sup>(像素) | acc<br><sup>top1 | acc<br><sup>top5 | 速度<br><sup>CPU ONNX<br>(毫秒) | 速度<br><sup>T4 TensorRT10<br>(毫秒) | 参数<br><sup>(百万) | FLOPs<br><sup>(十亿) @ 224 |
| -------------------------------------------------------------------------------------------- | ------------------- | ---------------- | ---------------- | ------------------------------- | ------------------------------------ | ------------------- | -------------------------- |
| [YOLO26n-cls](https://github.com/ultralytics/assets/releases/download/v8.4.0/yolo26n-cls.pt) | 224                 | 71.4             | 90.1             | 5.0 ± 0.3                       | 1.1 ± 0.0                            | 2.8                 | 0.5                        |
| [YOLO26s-cls](https://github.com/ultralytics/assets/releases/download/v8.4.0/yolo26s-cls.pt) | 224                 | 76.0             | 92.9             | 7.9 ± 0.2                       | 1.3 ± 0.0                            | 6.7                 | 1.6                        |
| [YOLO26m-cls](https://github.com/ultralytics/assets/releases/download/v8.4.0/yolo26m-cls.pt) | 224                 | 78.1             | 94.2             | 17.2 ± 0.4                      | 2.0 ± 0.0                            | 11.6                | 4.9                        |
| [YOLO26l-cls](https://github.com/ultralytics/assets/releases/download/v8.4.0/yolo26l-cls.pt) | 224                 | 79.0             | 94.6             | 23.2 ± 0.3                      | 2.8 ± 0.0                            | 14.1                | 6.2                        |
| [YOLO26x-cls](https://github.com/ultralytics/assets/releases/download/v8.4.0/yolo26x-cls.pt) | 224                 | 79.9             | 95.0             | 41.4 ± 0.9                      | 3.8 ± 0.0                            | 29.6                | 13.6                       |

- **acc** 值表示模型在 [ImageNet](https://www.image-net.org/) 数据集验证集上的准确率。<br>使用 `yolo val classify data=path/to/ImageNet device=0` 复现结果。
- **速度** 指标是在 [Amazon EC2 P4d](https://aws.amazon.com/ec2/instance-types/p4/) 实例上对 ImageNet val 图像进行平均测量的。CPU 速度使用 [ONNX](https://onnx.ai/) 导出进行测量。GPU 速度使用 [TensorRT](https://developer.nvidia.com/tensorrt) 导出进行测量。<br>使用 `yolo val classify data=path/to/ImageNet batch=1 device=0|cpu` 复现结果。

</details>

<details><summary>姿态估计 (COCO)</summary>

请参阅[姿态估计文档](https://docs.ultralytics.com/tasks/pose/)获取使用示例。这些模型在 [COCO-Pose](https://docs.ultralytics.com/datasets/pose/coco/) 数据集上训练，专注于 'person' 类别。

| 模型                                                                                           | 尺寸<br><sup>(像素) | mAP<sup>pose<br>50-95 | mAP<sup>pose<br>50 | 速度<br><sup>CPU ONNX<br>(毫秒) | 速度<br><sup>T4 TensorRT10<br>(毫秒) | 参数<br><sup>(百万) | FLOPs<br><sup>(十亿) |
| ---------------------------------------------------------------------------------------------- | ------------------- | --------------------- | ------------------ | ------------------------------- | ------------------------------------ | ------------------- | -------------------- |
| [YOLO26n-pose](https://github.com/ultralytics/assets/releases/download/v8.4.0/yolo26n-pose.pt) | 640                 | 57.2                  | 83.3               | 40.3 ± 0.5                      | 1.8 ± 0.0                            | 2.9                 | 7.5                  |
| [YOLO26s-pose](https://github.com/ultralytics/assets/releases/download/v8.4.0/yolo26s-pose.pt) | 640                 | 63.0                  | 86.6               | 85.3 ± 0.9                      | 2.7 ± 0.0                            | 10.4                | 23.9                 |
| [YOLO26m-pose](https://github.com/ultralytics/assets/releases/download/v8.4.0/yolo26m-pose.pt) | 640                 | 68.8                  | 89.6               | 218.0 ± 1.5                     | 5.0 ± 0.1                            | 21.5                | 73.1                 |
| [YOLO26l-pose](https://github.com/ultralytics/assets/releases/download/v8.4.0/yolo26l-pose.pt) | 640                 | 70.4                  | 90.5               | 275.4 ± 2.4                     | 6.5 ± 0.1                            | 25.9                | 91.3                 |
| [YOLO26x-pose](https://github.com/ultralytics/assets/releases/download/v8.4.0/yolo26x-pose.pt) | 640                 | 71.7                  | 91.6               | 565.4 ± 3.0                     | 12.2 ± 0.2                           | 57.6                | 201.7                |

- **mAP<sup>val</sup>** 值指的是在 [COCO Keypoints val2017](https://docs.ultralytics.com/datasets/pose/coco/) 数据集上的单模型单尺度性能。详见 [YOLO 性能指标](https://docs.ultralytics.com/guides/yolo-performance-metrics/)。<br>使用 `yolo val pose data=coco-pose.yaml device=0` 复现结果。
- **速度** 指标是在 [Amazon EC2 P4d](https://aws.amazon.com/ec2/instance-types/p4/) 实例上对 COCO val 图像进行平均测量的。CPU 速度使用 [ONNX](https://onnx.ai/) 导出进行测量。GPU 速度使用 [TensorRT](https://developer.nvidia.com/tensorrt) 导出进行测量。<br>使用 `yolo val pose data=coco-pose.yaml batch=1 device=0|cpu` 复现结果。

</details>

<details><summary>定向边界框 (DOTAv1)</summary>

请查阅 [OBB 文档](https://docs.ultralytics.com/tasks/obb/)获取使用示例。这些模型在 [DOTAv1](https://docs.ultralytics.com/datasets/obb/dota-v2/#dota-v10) 数据集上训练，包含 15 个类别。

| 模型                                                                                         | 尺寸<br><sup>(像素) | mAP<sup>test<br>50 | 速度<br><sup>CPU ONNX<br>(毫秒) | 速度<br><sup>T4 TensorRT10<br>(毫秒) | 参数<br><sup>(百万) | FLOPs<br><sup>(十亿) |
| -------------------------------------------------------------------------------------------- | ------------------- | ------------------ | ------------------------------- | ------------------------------------ | ------------------- | -------------------- |
| [YOLO26n-obb](https://github.com/ultralytics/assets/releases/download/v8.4.0/yolo26n-obb.pt) | 1024                | 78.9               | 97.7 ± 0.9                      | 2.8 ± 0.0                            | 2.5                 | 14.0                 |
| [YOLO26s-obb](https://github.com/ultralytics/assets/releases/download/v8.4.0/yolo26s-obb.pt) | 1024                | 80.9               | 218.0 ± 1.4                     | 4.9 ± 0.1                            | 9.8                 | 55.1                 |
| [YOLO26m-obb](https://github.com/ultralytics/assets/releases/download/v8.4.0/yolo26m-obb.pt) | 1024                | 81.0               | 579.2 ± 3.8                     | 10.2 ± 0.3                           | 21.2                | 183.3                |
| [YOLO26l-obb](https://github.com/ultralytics/assets/releases/download/v8.4.0/yolo26l-obb.pt) | 1024                | 81.6               | 735.6 ± 3.1                     | 13.0 ± 0.2                           | 25.6                | 230.0                |
| [YOLO26x-obb](https://github.com/ultralytics/assets/releases/download/v8.4.0/yolo26x-obb.pt) | 1024                | 81.7               | 1485.7 ± 11.5                   | 30.5 ± 0.9                           | 57.6                | 516.5                |

- **mAP<sup>test</sup>** 值指的是在 [DOTAv1 测试集](https://captain-whu.github.io/DOTA/dataset.html)上的单模型多尺度性能。<br>通过 `yolo val obb data=DOTAv1.yaml device=0 split=test` 复现结果，并将合并后的结果提交到 [DOTA 评估服务器](https://captain-whu.github.io/DOTA/evaluation.html)。
- **速度** 指标是在 [Amazon EC2 P4d](https://aws.amazon.com/ec2/instance-types/p4/) 实例上对 [DOTAv1 val 图像](https://docs.ultralytics.com/datasets/obb/dota-v2/#dota-v10)进行平均测量的。CPU 速度使用 [ONNX](https://onnx.ai/) 导出进行测量。GPU 速度使用 [TensorRT](https://developer.nvidia.com/tensorrt) 导出进行测量。<br>通过 `yolo val obb data=DOTAv1.yaml batch=1 device=0|cpu` 复现结果。

</details>

## 🧩 集成

我们与领先 AI 平台的关键集成扩展了 Ultralytics 产品的功能，增强了数据集标注、训练、可视化和模型管理等任务。了解 Ultralytics 如何与 [Weights & Biases](https://docs.ultralytics.com/integrations/weights-biases/)、[Comet ML](https://docs.ultralytics.com/integrations/comet/)、[Roboflow](https://docs.ultralytics.com/integrations/roboflow/) 和 [Intel OpenVINO](https://docs.ultralytics.com/integrations/openvino/) 等合作伙伴协作，优化您的 AI 工作流程。在 [Ultralytics 集成](https://docs.ultralytics.com/integrations/)了解更多信息。

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|                                                        Ultralytics Platform 🌟                                                        |                                              Weights & Biases                                               |                                                               Comet                                                                |                                                       Neural Magic                                                       |
| :-----------------------------------------------------------------------------------------------------------------------------------: | :---------------------------------------------------------------------------------------------------------: | :--------------------------------------------------------------------------------------------------------------------------------: | :----------------------------------------------------------------------------------------------------------------------: |
| 简化 YOLO 工作流程：使用 [Ultralytics 平台](https://platform.ultralytics.com/ultralytics/yolo26) 轻松进行标注、训练和部署。立即试用！ | 使用 [Weights & Biases](https://docs.ultralytics.com/integrations/weights-biases/) 跟踪实验、超参数和结果。 | 永久免费的 [Comet ML](https://docs.ultralytics.com/integrations/comet/) 让您能够保存 YOLO 模型、恢复训练并交互式地可视化预测结果。 | 使用 [Neural Magic DeepSparse](https://docs.ultralytics.com/integrations/neural-magic/)，将 YOLO 推理速度提高多达 6 倍。 |

## 🤝 贡献

我们依靠社区协作蓬勃发展！没有像您这样的开发者的贡献，Ultralytics YOLO 就不会成为如今最先进的框架。请参阅我们的[贡献指南](https://docs.ultralytics.com/help/contributing/)开始贡献。我们也欢迎您的反馈——通过完成我们的[调查问卷](https://www.ultralytics.com/survey?utm_source=github&utm_medium=social&utm_campaign=Survey)分享您的体验。非常**感谢** 🙏 每一位贡献者！

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我们期待您的贡献，帮助 Ultralytics 生态系统变得更好！

## 📜 许可证

Ultralytics 提供两种许可选项以满足不同需求：

- **AGPL-3.0 许可证**：这种经 [OSI 批准](https://opensource.org/license/agpl-3.0)的开源许可证非常适合学生、研究人员和爱好者。它鼓励开放协作和知识共享。有关完整详细信息，请参阅 [LICENSE](https://github.com/ultralytics/ultralytics/blob/main/LICENSE) 文件。
- **Ultralytics 企业许可证**：专为商业用途设计，此许可证允许将 Ultralytics 软件和 AI 模型无缝集成到商业产品和服务中，绕过 AGPL-3.0 的开源要求。如果您的使用场景涉及商业部署，请通过 [Ultralytics 授权许可](https://www.ultralytics.com/license)与我们联系。

## 📞 联系方式

有关 Ultralytics 软件的错误报告和功能请求，请访问 [GitHub Issues](https://github.com/ultralytics/ultralytics/issues)。如有疑问、讨论和社区支持，请加入我们在 [Discord](https://discord.com/invite/ultralytics)、[Reddit](https://www.reddit.com/r/ultralytics/?rdt=44154) 和 [Ultralytics 社区论坛](https://community.ultralytics.com/)上的活跃社区。我们随时为您提供有关 Ultralytics 的所有帮助！

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