Face-Visibility Gate QA — Fresh Stratified Sample (shard 0001)

Generated 28 detections from never-before-QA’d shard-0001 media (spread across 28 distinct source files; images + video frames). All crops are FRESH — none were part of the prior Persons A–G shard-0002 QA. Run: two-tier gate (Tier-1 deterministic + Tier-2 vision obscuration classifier). Workers stay PAUSED; this is a re-rank of already-computed detections.

KEPT (usable)

OBSCURED (quarantine)

NO-FACE (quarantine)

Why Tier-2 is mandatory: 3 of these faces passed Tier-1’s deterministic quality/metrics checks (conf, size, edge-energy) as “usable”, but are in fact obscured — a mask or gag covers the identity-bearing region and the eyes are shut. Tier-1 thresholds / edge-energy alone CANNOT see object occlusion, so only the Tier-2 vision classifier catches them and routes them to quarantine instead of a person group.

Per-detection verdicts

USABLE F_KmghEsmL_f895_b0

KmghEsmL_001.mp4 · video · frame 895 · conf 0.900 · bbox 409,382 524,537 · smin 115 · edge 36.4

Tier-1 (deterministic)	PASSED → usable
Tier-2 (vision)	USABLE — Clear unobstructed face, all features visible
FINAL	USABLE

file_id: KmghEsmL_001

USABLE F_KmghEsmL_f1331_b0

KmghEsmL_002.mp4 · video · frame 1331 · conf 0.889 · bbox 435,381 550,543 · smin 115 · edge 40.8

Tier-1 (deterministic)	PASSED → usable
Tier-2 (vision)	USABLE — Clear unobstructed face (sliver of hair/hand at edge, face unobscured)
FINAL	USABLE

file_id: KmghEsmL_002

USABLE F_KmghEsmL_f1223_b0

KmghEsmL_003.mp4 · video · frame 1223 · conf 0.894 · bbox 425,375 540,537 · smin 115 · edge 39.2

Tier-1 (deterministic)	PASSED → usable
Tier-2 (vision)	USABLE — Clear unobstructed face, eyes/nose/mouth visible
FINAL	USABLE

file_id: KmghEsmL_003

USABLE F_KmghEsmL_f0_b3

KmghEsmL_004.mp4 · video · frame 0 · conf 0.894 · bbox 427,378 541,539 · smin 114 · edge 36.4

Tier-1 (deterministic)	PASSED → usable
Tier-2 (vision)	USABLE — Clear unobstructed face, eyes closed but features visible
FINAL	USABLE

file_id: KmghEsmL_004

USABLE F_KmghEsmL_f0_b4

KmghEsmL_005.mp4 · video · frame 0 · conf 0.891 · bbox 427,373 547,522 · smin 120 · edge 45.8

Tier-1 (deterministic)	PASSED → usable
Tier-2 (vision)	USABLE — Clear unobstructed face, all landmarks visible
FINAL	USABLE

file_id: KmghEsmL_005

USABLE F_KmghEsmL_f1468_b0

KmghEsmL_007.mp4 · video · frame 1468 · conf 0.888 · bbox 437,365 550,521 · smin 113 · edge 38.0

Tier-1 (deterministic)	PASSED → usable
Tier-2 (vision)	USABLE — Full unobstructed face, sharp and complete
FINAL	USABLE

file_id: KmghEsmL_007

USABLE F_XkeRoP6d_f242_b0

XkeRoP6d_001.mp4 · video · frame 242 · conf 0.770 · bbox 228,125 387,352 · smin 159 · edge 40.2

Tier-1 (deterministic)	PASSED → usable
Tier-2 (vision)	USABLE — Clear well-lit unobstructed face
FINAL	USABLE

file_id: XkeRoP6d_001

USABLE F_Y7bwQKSo_f0_b0

Y7bwQKSo_003.mp4 · video · frame 0 · conf 0.816 · bbox 278,74 431,267 · smin 153 · edge 38.5

Tier-1 (deterministic)	PASSED → usable
Tier-2 (vision)	USABLE — Fully visible unobstructed face, all landmarks present
FINAL	USABLE

file_id: Y7bwQKSo_003

USABLE F_Y7bwQKSo_f0_b1

Y7bwQKSo_004.mp4 · video · frame 0 · conf 0.822 · bbox 235,10 380,215 · smin 145 · edge 36.6

Tier-1 (deterministic)	PASSED → usable
Tier-2 (vision)	USABLE — Clear unobstructed face (eyes closed, features visible)
FINAL	USABLE

file_id: Y7bwQKSo_004

USABLE F_Y7bwQKSo_f442_b0

Y7bwQKSo_005.mp4 · video · frame 442 · conf 0.798 · bbox 235,49 382,268 · smin 147 · edge 31.2

Tier-1 (deterministic)	PASSED → usable
Tier-2 (vision)	USABLE — Clear unobstructed face, all landmarks visible
FINAL	USABLE

file_id: Y7bwQKSo_005

OBSCURED F_YEXD6xgS_f0_b0

YEXD6xgS_002.mp4 · video · frame 0 · conf 0.756 · bbox 480,159 647,384 · smin 167 · edge 28.3

Tier-1 (deterministic)	PASSED → usable
Tier-2 (vision)	OBSCURED — Real face but LOWER FACE MASKED (black fabric over nose/mouth); Tier-1 metrics missed it
FINAL	OBSCURED

file_id: YEXD6xgS_002

OBSCURED F_YEXD6xgS_f880_b0

YEXD6xgS_003.mp4 · video · frame 880 · conf 0.788 · bbox 495,59 679,259 · smin 184 · edge 42.8

Tier-1 (deterministic)	PASSED → usable
Tier-2 (vision)	OBSCURED — Real face but mouth covered by large BALL-GAG; eyes shut; Tier-1 metrics missed it
FINAL	OBSCURED

file_id: YEXD6xgS_003

USABLE F_ZK4Czl4m_f0_b0

ZK4Czl4m_001.mp4 · video · frame 0 · conf 0.816 · bbox 318,117 484,356 · smin 166 · edge 41.4

Tier-1 (deterministic)	PASSED → usable
Tier-2 (vision)	USABLE — Full unobstructed face, closed eyes, no covering
FINAL	USABLE

file_id: ZK4Czl4m_001

USABLE F_ZK4Czl4m_f0_b1

ZK4Czl4m_003.mp4 · video · frame 0 · conf 0.802 · bbox 292,130 465,354 · smin 173 · edge 45.0

Tier-1 (deterministic)	PASSED → usable
Tier-2 (vision)	USABLE — Clear unobstructed face (wet hair, no mask)
FINAL	USABLE

file_id: ZK4Czl4m_003

USABLE F_jyv84vSI_f-1_b0

jyv84vSI_004.jpg · image · still · conf 0.859 · bbox 384,168 573,456 · smin 189 · edge 39.9

Tier-1 (deterministic)	PASSED → usable
Tier-2 (vision)	USABLE — Fully visible unmasked unblurred face
FINAL	USABLE

file_id: jyv84vSI_004

OBSCURED F_m1fo9DbY_f322_b0

m1fo9DbY_003.mp4 · video · frame 322 · conf 0.773 · bbox 268,0 459,238 · smin 191 · edge 42.8

Tier-1 (deterministic)	PASSED → usable
Tier-2 (vision)	OBSCURED — Real face but mouth/lower face covered by large BALL-GAG + eyes closed; Tier-1 metrics missed it
FINAL	OBSCURED

file_id: m1fo9DbY_003

USABLE F_mOnqpDyt_f-1_b0

mOnqpDyt_002.jpg · image · still · conf 0.854 · bbox 512,170 732,496 · smin 220 · edge 50.3

Tier-1 (deterministic)	PASSED → usable
Tier-2 (vision)	USABLE — Clear unobstructed face, all identity features present
FINAL	USABLE

file_id: mOnqpDyt_002

USABLE F_uPqVOepW_f-1_b0

uPqVOepW_004.jpg · image · still · conf 0.853 · bbox 520,47 743,348 · smin 223 · edge 44.5

Tier-1 (deterministic)	PASSED → usable
Tier-2 (vision)	USABLE — Complete unobstructed face
FINAL	USABLE

file_id: uPqVOepW_004

USABLE F_uPqVOepW_f-1_b1

uPqVOepW_005.jpg · image · still · conf 0.857 · bbox 725,52 950,341 · smin 225 · edge 49.1

Tier-1 (deterministic)	PASSED → usable
Tier-2 (vision)	USABLE — Clear unobstructed face
FINAL	USABLE

file_id: uPqVOepW_005

USABLE F_uPqVOepW_f-1_b2

uPqVOepW_006.jpg · image · still · conf 0.865 · bbox 565,37 790,348 · smin 225 · edge 46.4

Tier-1 (deterministic)	PASSED → usable
Tier-2 (vision)	USABLE — Clear unobstructed face
FINAL	USABLE

file_id: uPqVOepW_006

USABLE F_uPqVOepW_f-1_b3

uPqVOepW_008.jpg · image · still · conf 0.872 · bbox 548,78 765,381 · smin 217 · edge 46.6

Tier-1 (deterministic)	PASSED → usable
Tier-2 (vision)	USABLE — Clear unobstructed face
FINAL	USABLE

file_id: uPqVOepW_008

USABLE F_uPqVOepW_f-1_b4

uPqVOepW_009.jpg · image · still · conf 0.881 · bbox 780,82 1011,310 · smin 228 · edge 45.9

Tier-1 (deterministic)	PASSED → usable
Tier-2 (vision)	USABLE — Unobstructed real face with clear identity features
FINAL	USABLE

file_id: uPqVOepW_009

USABLE F_xesDSUV3_f790_b0

xesDSUV3_002.mp4 · video · frame 790 · conf 0.776 · bbox 173,137 375,403 · smin 202 · edge 41.2

Tier-1 (deterministic)	PASSED → usable
Tier-2 (vision)	USABLE — Clear unobstructed face (eyes closed but visible)
FINAL	USABLE

file_id: xesDSUV3_002

USABLE F_zCnSJp7P_f600_b0

zCnSJp7P_001.mp4 · video · frame 600 · conf 0.881 · bbox 318,341 445,526 · smin 127 · edge 40.8

Tier-1 (deterministic)	PASSED → usable
Tier-2 (vision)	USABLE — Fully visible unobstructed face
FINAL	USABLE

file_id: zCnSJp7P_001

USABLE F_zCnSJp7P_f867_b0

zCnSJp7P_002.mp4 · video · frame 867 · conf 0.882 · bbox 259,367 388,550 · smin 129 · edge 39.2

Tier-1 (deterministic)	PASSED → usable
Tier-2 (vision)	USABLE — Entire face unobstructed and identity-usable
FINAL	USABLE

file_id: zCnSJp7P_002

USABLE F_zCnSJp7P_f300_b1

zCnSJp7P_003.mp4 · video · frame 300 · conf 0.886 · bbox 287,335 414,522 · smin 127 · edge 43.1

Tier-1 (deterministic)	PASSED → usable
Tier-2 (vision)	USABLE — Clear unobstructed face
FINAL	USABLE

file_id: zCnSJp7P_003

USABLE F_zCnSJp7P_f0_b3

zCnSJp7P_004.mp4 · video · frame 0 · conf 0.892 · bbox 327,341 459,520 · smin 132 · edge 43.8

Tier-1 (deterministic)	PASSED → usable
Tier-2 (vision)	USABLE — Sharp well-lit unobstructed face
FINAL	USABLE

file_id: zCnSJp7P_004

USABLE F_zCnSJp7P_f317_b0

zCnSJp7P_005.mp4 · video · frame 317 · conf 0.897 · bbox 256,354 383,537 · smin 127 · edge 39.7

Tier-1 (deterministic)	PASSED → usable
Tier-2 (vision)	USABLE — Clear unobstructed face
FINAL	USABLE

file_id: zCnSJp7P_005

Session: fresh-sample-gate-0001 · Gate verdicts are a data/report artifact (regenerate from the catalog + crops, not hand-edited). No new full shards were built.