{
  "abstract": "There is provided a computer-implemented system for measuring a bulb diameter of an installed one-sided fastener in a structure. The system includes the structure and the installed one-sided fastener installed in the structure. The installed one-sided fastener has a fastener bulb with the bulb diameter. The system includes an optical imaging system. The system includes image data, including a first image of the fastener bulb, and a second image of the fastener bulb. The system includes a post image processing system, to process the image data, and to determine a bulb diameter measurement of the bulb diameter. The post image processing system includes a control system with a computer system, a trained artificial intelligence model trained to identify the installed one-sided fastener and to define edges of the installed one-sided fastener, and one or more of, an edge detection process, an ellipse fitting process, and a stereo vision process.",
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  "published_at": "2026-09-15T19:02:52.930011Z",
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  "source_date": "2026-04-16",
  "source_id": "US-2026104248-A1",
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  "title": "System and method for measuring a bulb diameter of an installed one-sided fastener in a structure",
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