A fresh verifier saw one distance-ring QA overlay per frame plus observed/local4/render/residual evidence. It saw no clean reference, pseudo-GT, or evaluation. Decisions and v3 masks were hash-locked before reference access.
Ring legend: red=current, yellow=+3, orange=+5, cyan=+8, blue=+12 px. Hard dilation is forbidden for motion-blur/defocus cause families.
0006 · undercovered · global_hard_dilation +12px IoU against noisy pseudo-GT: v2 0.685 → v3 0.714; changed pixels 1.80%.
observed clean-reference-oracle critic-polygon v2-mask distance-ring-QA v3-verified-mask noisy-pseudo-GT blind boundary-verifier decision {
"frame_id": "0006",
"boundary_status": "undercovered",
"cause_family": "crisp_hard_occluder",
"operator": "global_hard_dilation",
"required_ring_px": 12,
"target_regions": [],
"observations": "折叠屏外周连续的黑色硬质边框在 observed 中明确越过红线；顶部斜边与两侧均为同一屏体边框，外侧 residual 也沿该边框连通。",
"reason": "当前轮廓主要贴在屏面与黑框的内缘，+12 px 是覆盖可见硬框外缘的最小可用环；属于清晰硬边，可做全局硬膨胀。",
"confidence": 0.94
} 0008 · undercovered · global_hard_dilation +12px IoU against noisy pseudo-GT: v2 0.850 → v3 0.894; changed pixels 1.19%.
observed clean-reference-oracle critic-polygon v2-mask distance-ring-QA v3-verified-mask noisy-pseudo-GT blind boundary-verifier decision {
"frame_id": "0008",
"boundary_status": "undercovered",
"cause_family": "reflective_planar_support",
"operator": "global_hard_dilation",
"required_ring_px": 12,
"target_regions": [],
"observations": "镜面污染的实体边框在 observed 中沿顶、左、右三边连续越过红线约一个窄框宽度；框外 residual 与镜面高残差区域贴边连通。",
"reason": "当前 mask 基本止于反射面的内缘，遗漏同一反射支撑体的硬质外框；+12 px 是完整覆盖该可见窄框的最小可用环。",
"confidence": 0.96
} 0012 · undercovered · soft_feather_adjustment +12px IoU against noisy pseudo-GT: v2 0.879 → v3 0.879; changed pixels 0.00%.
observed clean-reference-oracle critic-polygon v2-mask distance-ring-QA v3-verified-mask noisy-pseudo-GT blind boundary-verifier decision {
"frame_id": "0012",
"boundary_status": "undercovered",
"cause_family": "motion_blur",
"operator": "soft_feather_adjustment",
"required_ring_px": 12,
"target_regions": [],
"soft_edge_strength": 0.68,
"observations": "同一块运动中的半透明布/片状物在上部右肩及左侧肩部以一致斜向拖影越过红线，外部 residual 与 mask 内主拖影方向和形态连续。",
"reason": "越界部分是低不透明度运动拖尾而非硬轮廓，不能硬膨胀；用 +12 px 范围的中等偏强软羽化吸收可见尾部。",
"confidence": 0.88
} 0020 · correct · no_change +0px IoU against noisy pseudo-GT: v2 0.581 → v3 0.581; changed pixels 0.00%.
observed clean-reference-oracle critic-polygon v2-mask distance-ring-QA v3-verified-mask noisy-pseudo-GT blind boundary-verifier decision {
"frame_id": "0020",
"boundary_status": "correct",
"cause_family": "compound_hard_occluder",
"operator": "no_change",
"required_ring_px": 0,
"target_regions": [],
"observations": "红线已沿镜框外缘、头发、双手、袖口和躯干外轮廓闭合；红线外未见与人物加镜框这一复合污染连续的明确漏边。",
"reason": "外部残差主要来自静态场景结构，不能作为扩张依据；当前硬边覆盖已足够。",
"confidence": 0.91
} 0030 · overcovered · no_change +0px IoU against noisy pseudo-GT: v2 0.592 → v3 0.592; changed pixels 0.00%.
observed clean-reference-oracle critic-polygon v2-mask distance-ring-QA v3-verified-mask noisy-pseudo-GT blind boundary-verifier decision {
"frame_id": "0030",
"boundary_status": "overcovered",
"cause_family": "defocus_soft",
"operator": "no_change",
"required_ring_px": 0,
"target_regions": [],
"observations": "当前红线在离焦花枝之间包入大块清晰静态背景，并已有多个远离主体的小孤岛；红线外没有需要由任一外扩环覆盖的连续同语义污染。",
"reason": "现有边界已经偏宽，任何正向 ring 都会进一步吞入静态背景；给定算子中无收缩操作，因此保持不扩张。",
"confidence": 0.95
} 
