训练YOLOv8模型_胸部x光片检测数据集 且构建一个基于YOLOv8的胸部X光片检测系统 voc/yolo
文章目录
深度学习目标检测
胸部x光片检测数据集 YOLO
胸部 X 光 8 子集数据集是精选的胸部 X 光片集合，专门用于开发和评估专注于胸部疾病的物体检测模型。该子集包含 790 张图像和 984 个带注释的边界框，可捕捉肺部和周围结构内的各种异常情况。注释以 YOLO 和 Pascal VOC 格式提供，方便在各种机器学习框架中使用。
数据组成
图片总数：790
总边界框数：984
图像格式：PNG
注释格式：YOLO 和 Pascal VOC
所有图像均调整大小为 512x512 像素。
测试集：631 幅图像
验证集：159 幅图像
类别和标签
该数据集包括 14 种不同类别的胸部疾病的注释：
肺不张，心脏扩大，积液，浸润，结核，胸部肿块，肺炎，气胸
以下文字及代码仅供参考
构建一个基于YOLOv8的胸部X光片检测系统。该系统将使用提供的高质量图像数据集进行训练，标注方式（YOLO和VOC）。以下是完整的代码实现，包括数据加载、模型训练、评估和推理。
1. 安装依赖
首先，确保您已经安装了所需的库，特别是YOLOv8依赖的库。
pip install torch torchvision ultralytics pyqt5 opencv-python lxml
2. 数据准备
假设您的数据集已经按照YOLO和VOC的标准格式进行了标注。具体来说，数据集目录结构如下：
datasets/
└── chest_xray_detection/
├── images/
│ ├── train/
│ └── val/
├── labels_yolo/
│ ├── train/
│ └── val/
└── annotations_voc/
├── train/
└── val/
Font/
models/
runs/
save_data/
test-file/
TestFiles/
UIProgram/
2.py
CameraTest.py
CITATION.cff
Config.py
detect_tools.py
imgTest.py
installPackages.py
MainProgram.py
requirements.txt
setup.py
test.py
train.py
VideoTest.py
yolov8n.pt
使用教程.xt
项目文件说明.png
3. 文件内容
3.1 datasets/chest_xray_detection/ 目录
假设您的数据集已经按照YOLO和VOC标准格式进行了标注。具体来说，每个图像对应一个同名的.txt文件（YOLO格式）或XML文件（VOC格式），而标签文件是JSON格式的COCO标准注释文件。
3.2 Config.py
配置文件，用于定义数据集路径、模型路径等。
[<title="Config.py">]
# Config.py
DATASET_PATH = 'datasets/chest_xray_detection/'
MODEL_PATH = 'runs/detect/train/weights/best.pt'
IMG_SIZE = 512
BATCH_SIZE = 16
EPOCHS = 50
CONF_THRESHOLD = 0.5
3.3 train.py
训练YOLOv8模型的脚本。
[<title="train.py">]
from ultralytics import YOLO
import os
# Load a model
model = YOLO('yolov8n.pt') # You can also use other versions like yolov8s.pt, yolov8m.pt, etc.
# Define dataset configuration
dataset_config = f"""
train: {os.path.join(os.getenv('DATASET_PATH', 'datasets/chest_xray_detection/'), 'images/train')}
val: {os.path.join(os.getenv('DATASET_PATH', 'datasets/chest_xray_detection/'), 'images/val')}
nc: 8
names: ['atelectasis', 'cardiomegaly', 'effusion', 'infiltration', 'tuberculosis', 'mass', 'pneumonia', 'pleural_effusion']
"""
# Save dataset configuration to a YAML file
with open('chest_xray.yaml', 'w') as f:
f.write(dataset_config)
# Train the model
results = model.train(data='chest_xray.yaml', epochs=int(os.getenv('EPOCHS', 50)), imgsz=int(os.getenv('IMG_SIZE', 512)), batch=int(os.getenv('BATCH_SIZE', 16)))
3.4 detect_tools.py
用于检测的工具函数。
[<title="detect_tools.py">]
from ultralytics import YOLO
import cv2
import numpy as np
def load_model(model_path):
return YOLO(model_path)
def detect_objects(frame, model, conf_threshold=0.5):
results = model(frame, conf=conf_threshold)
detections = []
for result in results:
boxes = result.boxes.cpu().numpy()
for box in boxes:
r = box.xyxy[0].astype(int)
cls = int(box.cls[0])
conf = round(float(box.conf[0]), 2)
label = f"{model.names[cls]} {conf}"
detections.append((r, label))
return detections
def draw_detections(frame, detections):
for (r, label) in detections:
cv2.rectangle(frame, (r[0], r[1]), (r[2], r[3]), (0, 255, 0), 2)
cv2.putText(frame, label, (r[0], r[1] - 10), cv2.FONT_HERSHEY_SIMPLEX, 0.9, (0, 255, 0), 2)
return frame
3.5 UIProgram/MainProgram.py
主程序，使用PyQt5构建图形界面。
[<title="UIProgram/MainProgram.py">]
import sys
import cv2
from PyQt5.QtWidgets import QApplication, QMainWindow, QLabel, QVBoxLayout, QWidget, QPushButton
from PyQt5.QtGui import QImage, QPixmap
from PyQt5.QtCore import Qt, QTimer
from detect_tools import load_model, detect_objects, draw_detections
import os
class VideoWindow(QMainWindow):
def __init__(self):
super().__init__()
self.setWindowTitle("Chest X-ray Detection")
self.setGeometry(100, 100, 800, 600)
self.central_widget = QWidget()
self.setCentralWidget(self.central_widget)
self.layout = QVBoxLayout()
self.central_widget.setLayout(self.layout)
self.label = QLabel()
self.layout.addWidget(self.label)
self.start_button = QPushButton("Start Detection")
self.start_button.clicked.connect(self.start_detection)
self.layout.addWidget(self.start_button)
self.cap = None
self.timer = QTimer()
self.timer.timeout.connect(self.update_frame)
self.model = load_model(os.getenv('MODEL_PATH', 'runs/detect/train/weights/best.pt'))
def start_detection(self):
if not self.cap:
self.cap = cv2.VideoCapture(0) # Use webcam
self.timer.start(30)
def update_frame(self):
ret, frame = self.cap.read()
if not ret:
return
detections = detect_objects(frame, self.model, conf_threshold=float(os.getenv('CONF_THRESHOLD', 0.5)))
frame = draw_detections(frame, detections)
rgb_image = cv2.cvtColor(frame, cv2.COLOR_BGR2RGB)
h, w, ch = rgb_image.shape
bytes_per_line = ch * w
qt_image = QImage(rgb_image.data, w, h, bytes_per_line, QImage.Format_RGB888)
pixmap = QPixmap.fromImage(qt_image)
self.label.setPixmap(pixmap.scaled(800, 600, Qt.KeepAspectRatio))
if __name__ == "__main__":
app = QApplication(sys.argv)
window = VideoWindow()
window.show()
sys.exit(app.exec_())
3.6 requirements.txt
列出所有依赖项。
[<title="requirements.txt">]
torch
torchvision
ultralytics
pyqt5
opencv-python
lxml
3.7 setup.py
用于安装项目的脚本。
[<title="setup.py">]
from setuptools import setup, find_packages
setup(
name='chest_xray_detection',
version='0.1',
packages=find_packages(),
install_requires=[
'torch',
'torchvision',
'ultralytics',
'pyqt5',
'opencv-python',
'lxml'
],
entry_points={
'console_scripts': [
'train=train:main',
'detect=UIProgram.MainProgram:main'
]
}
)
3.8 README.md
项目说明文档。
[<title="README.md">]
# Chest X-ray Detection System
This project uses YOLOv8 and PyQt5 to create a real-time chest X-ray detection system. The system detects various abnormalities in chest X-rays such as atelectasis, cardiomegaly, effusion, infiltration, tuberculosis, mass, pneumonia, and pleural effusion.
## Installation
1. Clone the repository:
```bash
git clone https://github.com/yourusername/chest-xray-detection.git
cd chest-xray-detection
-
Install dependencies:
pip install -r requirements.txt -
Set up environment variables (optional):
export DATASET_PATH=./datasets/chest_xray_detection/ export MODEL_PATH=./runs/detect/train/weights/best.pt export IMG_SIZE=512 export BATCH_SIZE=16 export EPOCHS=50 export CONF_THRESHOLD=0.5
Training
To train the YOLOv8 model:
python train.py
Running the GUI
To run the graphical user interface:
python UIProgram/MainProgram.py
Usage Tutorial
See 使用教程.xt for detailed usage instructions.
### 4. 运行步骤
1. **确保数据集路径正确**：
- 将您的数据集放在 `datasets/chest_xray_detection` 目录下。
- 确保图像和对应的标签文件存在并且格式正确。
2. **安装必要的库**：
- 确保您已经安装了所需的库，如 `torch`, `torchvision`, `ultralytics`, `pyqt5`, `opencv-python`, `lxml` 等。
- 您可以使用以下命令安装这些库：
```bash
pip install -r requirements.txt
```
3. **运行代码**：
- 首先运行训练代码来训练YOLOv8模型：
```bash
python train.py
```
- 然后运行GUI代码来启动检测系统：
```bash
python UIProgram/MainProgram.py
```
构建基于YOLOv8和PyQt5的胸部X光片检测系统。