lambolimm/carbon-fiber-defects

🧵 Carbon Fiber Defect Sample Dataset (CFYD + WPSD)

This repository presents sample images from two industrial defect datasets — Carbon Fiber Yarn Defects Dataset (CFYD) and Woven Preform Surface Defects Dataset (WPSD).

These datasets were constructed to support defect detection in carbon fiber manufacturing, covering both yarn-level and preform-level production stages.

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📘 Dataset Overview

This dataset project contains two sub-datasets, each corresponding to a distinct stage in the composite preform manufacturing process.

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1️⃣ Carbon Fiber Yarn Defects Dataset (CFYD)

The CFYD dataset focuses on the yarn delivery stage of carbon fiber production.

• Raw Data: 2,108 high-resolution images (4096×3000)
• Processed Data: Each raw image was divided into 1024×1024 patches
• Cleaned Data: After discarding blurred or noisy samples, approximately 10,000 valid patches were retained
• Defect Categories:
  • Fuzz
  • Broken Yarns
  • Fiber Clumps
  • Loose Filaments
• Normal Category: Images without visible defects
• Purpose: Enables fine-grained defect localization and recognition in slender fiber structures.

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2️⃣ Woven Preform Surface Defects Dataset (WPSD)

The WPSD dataset focuses on the weaving stage of carbon fiber preform manufacturing.

• Raw Data: 1,574 preform images (4096×3000)
• Processed Data: Each image was partitioned into 1024×1024 patches
• Cleaned Data: After manual screening, approximately 5,000 valid patches were retained
• Defect Categories:
  • Knots
  • Yarn Breakage
  • Floating Yarns
• Normal Category: Defect-free woven surfaces
• Note: Defect instances in this dataset are comparatively rarer than in CFYD, reflecting real-world manufacturing distributions.

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🗂️ File Organization

The repository is structured as follows:

carbon-fiber-defects/
│
├── CFYD/
│   ├── Fuzz/
│   │   └── Fuzz.jpg
│   ├── Broken Yarns/
│   │   └── Broken Yarns.jpg
│   ├── Fiber Clumps/
│   │   └── Fiber Clumps.jpg
│   └── Loose Filaments/
│       └── Loose Filaments.jpg
│
└── WPSD/
    ├── Knots/
    │   └── Knots.jpg
    ├── Yarn Breakage/
    │   └── Yarn Breakage.jpg
    └── Floating Yarns/
        └── Floating Yarns.jpg

Each subfolder contains one representative image that illustrates a specific type of surface or yarn defect.
All images are resized and standardized for visualization purposes.

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⚠️ Important Notes

• The current dataset contains sample images only and does not represent the full datasets used in the publication.
• The complete datasets (CFYD & WPSD) used for model training, testing, and evaluation in the paper will be fully released upon official publication.
• These samples are shared solely for academic reference and visualization.