DiagSplat · semantic completeness repair

四帧端到端：输入 → 语义漏区 → 局部修补 → 新 mask

Round-1 render residual 被明确标记为 biased auxiliary：它只展示，不参与决定修补范围。黄色区域来自语义漏区诊断；红色表示新增 hard mask，洋红表示新增 soft support。+16 px 仅作为失败基线。

Blind construction boundary: 新 mask、instructions 和哈希锁先生成；clean reference 与 noisy pseudo-GT 只在锁定后的最后两栏用于审计，没有参与 mask 构造。

0001 · LOCAL_EXPAND · red floor tray

Semantic diagnosis: The lower-right scalloped rim remains outside the mask. Repair: component_hard_dilation within the yellow target region, radius 32 px. Hard-mask area change: +0.917%.

Machine-readable instruction and audit metrics

{
  "instruction": {
    "status": "LOCAL_EXPAND",
    "object": "red floor tray",
    "failure": "The lower-right scalloped rim remains outside the mask.",
    "operator": "component_hard_dilation",
    "radius_px": 32,
    "component_seed": [
      0.37,
      0.86
    ],
    "target_polygon": [
      [
        0.36,
        0.83
      ],
      [
        0.4,
        0.83
      ],
      [
        0.45,
        0.87
      ],
      [
        0.44,
        0.93
      ],
      [
        0.35,
        0.94
      ],
      [
        0.35,
        0.88
      ]
    ]
  },
  "pseudo_gt_audit": {
    "round1": {
      "precision": 0.8107156355725177,
      "recall": 0.7973742429187973,
      "iou": 0.6722262564494553
    },
    "final": {
      "precision": 0.7353174509665308,
      "recall": 0.8487832299713488,
      "iou": 0.6501468862204752
    }
  }
}

0002 · RESEGMENT · very-near defocused parasol

Semantic diagnosis: A broad blurred parasol fringe continues beyond +16 px. Repair: local_soft_envelope within the yellow target region, radius 64 px. Hard-mask area change: +2.517%.

Machine-readable instruction and audit metrics

{
  "instruction": {
    "status": "RESEGMENT",
    "object": "very-near defocused parasol",
    "failure": "A broad blurred parasol fringe continues beyond +16 px.",
    "operator": "local_soft_envelope",
    "radius_px": 64,
    "target_polygon": [
      [
        0.0,
        0.2
      ],
      [
        0.48,
        0.2
      ],
      [
        0.48,
        1.0
      ],
      [
        0.0,
        1.0
      ]
    ]
  },
  "pseudo_gt_audit": {
    "round1": {
      "precision": 0.9795259541593314,
      "recall": 0.8932359450739569,
      "iou": 0.8768645226688088
    },
    "final": {
      "precision": 0.9180422179935389,
      "recall": 0.9295948347075235,
      "iou": 0.8583602581907935
    }
  }
}

0003 · LOCAL_EXPAND · coat/mannequin lower support

Semantic diagnosis: A small lower garment/support corner remains outside the mask. Repair: local_hard_dilation within the yellow target region, radius 32 px. Hard-mask area change: +0.513%.

Machine-readable instruction and audit metrics

{
  "instruction": {
    "status": "LOCAL_EXPAND",
    "object": "coat/mannequin lower support",
    "failure": "A small lower garment/support corner remains outside the mask.",
    "operator": "local_hard_dilation",
    "radius_px": 32,
    "target_ellipse": [
      0.365,
      0.94,
      0.09,
      0.2
    ]
  },
  "pseudo_gt_audit": {
    "round1": {
      "precision": 0.9597621848969429,
      "recall": 0.9358634253436092,
      "iou": 0.9005303385951529
    },
    "final": {
      "precision": 0.9451955024121037,
      "recall": 0.9596168652472538,
      "iou": 0.9090374061236279
    }
  }
}

0004 · LOCAL_EXPAND · freestanding screen lower-right support

Semantic diagnosis: The large lower-right corner/foot is not fully enclosed. Repair: local_hard_dilation within the yellow target region, radius 48 px. Hard-mask area change: +1.188%.

Machine-readable instruction and audit metrics

{
  "instruction": {
    "status": "LOCAL_EXPAND",
    "object": "freestanding screen lower-right support",
    "failure": "The large lower-right corner/foot is not fully enclosed.",
    "operator": "local_hard_dilation",
    "radius_px": 48,
    "target_ellipse": [
      0.78,
      0.91,
      0.15,
      0.25
    ]
  },
  "pseudo_gt_audit": {
    "round1": {
      "precision": 0.8572352589336635,
      "recall": 0.5020989532730838,
      "iou": 0.46335333911013454
    },
    "final": {
      "precision": 0.8679251331070273,
      "recall": 0.5515002271065405,
      "iou": 0.508799951894348
    }
  }
}