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Ultralytics YOLOv8

⬢ 層級 2技術
高
薪資影響
6 個月
學習時長
中等
難度
—
職業
一覽

YOLOv8 is the latest version of YOLO (You Only Look Once), a state-of-the-art object detection model by Ultralytics. Used by computer vision engineers, roboticists, and AI/ML teams for detecting objects in images/video (cars, people, damage, defects) in real-time. Salary: $130–180k. Learn in 6–8 weeks. Sits alongside TensorFlow, OpenCV, and other vision frameworks.

什麼是 Ultralytics YOLOv8

YOLOv8 is the latest version of YOLO (You Only Look Once), a real-time object detection framework developed by Ultralytics. It detects objects (people, cars, animals, defects) in images and video at high speed (30+ FPS on GPU) and high accuracy. Unlike older two-stage detectors, YOLO is end-to-end and single-stage, making it suitable for real-time applications. You use the Ultralytics Python library: load pre-trained models, fine-tune on custom data, and deploy to GPUs, CPUs, or edge devices (Raspberry Pi, NVIDIA Jetson). YOLOv8 supports object detection, instance segmentation, pose estimation, and more, all in one framework.

🔧 工具與生態
Ultralytics YOLOv8 libraryPython (PyTorch backend)OpenCV (image processing)Dataset annotation tools (Roboflow, LabelImg)Model training & fine-tuningONNX export (edge deployment)Inference on GPU/CPU

💰 各地區薪資

地區初級中級高級
USA$110,000$170,000$240,000
UK£65,000£100,000£155,000
EU€70,000€110,000€170,000
CANADACA$105,000CA$160,000CA$230,000

❓ 常見問題

What's YOLO and why is YOLOv8 better?
YOLO detects objects in real-time (30+ FPS on GPU) unlike two-stage detectors (Faster R-CNN). YOLOv8 improves accuracy and speed over v7/v5, with better architecture and training recipes.
Can I use YOLOv8 on CPU?
Yes, but slower (2–5 FPS vs. 30+ FPS on GPU). For real-time applications, GPU is preferred. For edge deployment (Raspberry Pi), ONNX optimization can help.
Do I need a GPU to train YOLOv8?
Recommended but not required. Training on CPU is slow (hours/days vs. minutes on GPU). For fine-tuning on custom data, GPU is essential. Cloud GPU (Colab, Paperspace) is cheap.
Can YOLOv8 do segmentation?
Yes. YOLOv8 includes instance segmentation (pixel-level masks for each object), semantic segmentation, and pose estimation in the same framework.
How do I train YOLOv8 on custom data?
Annotate images with a tool (Roboflow, Labelimg). Export to YOLO format. Use Ultralytics library to train: `model.train(data='path/to/data.yaml', epochs=100)`. Fine-tuning on 500–1000 images takes 30 min on GPU.

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