{
  "title": "Glass container defect images for AI review",
  "source_page": "https://fiund.com/industries/glass-container-defect-images",
  "authorship": "Original fictional Fiund editorial exercise. No actual operating records or third-party source assets are included.",
  "example": {
    "title": "A seam survives rotation but glare moves",
    "context": "An owned transparent prop represents a container. Reference marks align two staged views.",
    "records": [
      [
        "1",
        "Reference",
        "A designed seam sits at angle 0 relative to the base mark."
      ],
      [
        "2",
        "View 1",
        "Vertical white streak at angle 20; seam at 0."
      ],
      [
        "3",
        "View 2",
        "After rotating the prop relative to the light, seam remains at 0; white streak shifts to angle 65."
      ]
    ],
    "question": "Which feature is tied to the object frame?",
    "answer": "The seam stays at angle 0 in both records 2 and 3 and agrees with record 1. The moving streak behaves as a view-dependent feature, so do not label it a persistent object defect without more evidence. Retain both views for audit.",
    "failureModes": [
      "Using image coordinates instead of the base mark",
      "Treating a highlight as a fixed defect from one frame"
    ],
    "fields": [
      [
        "object_angle",
        "Aligns observations to the base reference"
      ],
      [
        "capture_lighting",
        "Explains view-dependent changes"
      ],
      [
        "feature_persistence",
        "Records consistency across views"
      ]
    ],
    "holdout": "Use a fixed scratch and a moving highlight in the same angular region on one frame; separate them using the second view.",
    "boundary": "No branded containers, actual quality thresholds, injury claims or manufacturing diagnoses."
  }
}