{
  "id": "C07-N06",
  "title": "投影画面中间清晰边角糊，怎样区分对焦问题与几何拉伸",
  "schema_version": "1.0",
  "evidence_kind": "合成输入与协议；非现场测试结果",
  "tool_versions": {
    "generator": "Python 3.12.4",
    "ffmpeg": "8.0.1（仅实际媒体生成与解码）"
  },
  "required_delivery": "关闭与启用几何变形时的九宫格细线测试图对照",
  "input": {
    "regions": [
      "TL",
      "TC",
      "TR",
      "ML",
      "MC",
      "MR",
      "BL",
      "BC",
      "BR"
    ],
    "line_widths_px": [
      1,
      2,
      4,
      8
    ],
    "synthetic_region": {
      "region": "TR",
      "off_px": 2,
      "on_px": 4
    }
  },
  "expected": {
    "region_count": 9,
    "optical_measurement": null
  },
  "measurement": null,
  "unmeasured": [
    "实体播放硬件",
    "显示刷新相位",
    "现场拍摄",
    "实际Windows目标机配置"
  ],
  "record_fields": [
    "region",
    "warp_enabled",
    "pattern_raster_size",
    "focus_setting",
    "smallest_resolved_line_px",
    "camera_focus",
    "photo_id",
    "local_stretch_note"
  ]
}