{ "created_at_utc": "2026-09-22T09:21:53.597950+00:00", "counts": { "comparisons": 8, "positive": 3, "negative": 5, "real_contiguous_comparisons": 4, "edited_controls": 4, "cross_performance_positive": 2, "same_performance_additional_segment_positive": 1 }, "independence": { "actual_distinct_visible_performances": 3, "capture_sources": 2, "new_human_subject_identity_inference": false, "note": "Two spatially distinct people in one DVIDS group recording plus one separately filmed Commons performance. Shared DVIDS camera, instruction and session; later Commons segment is the same performance. Eight cases are not eight independent people or trials." }, "confusion": { "true_positive": 0, "false_negative": 0, "true_negative": 0, "false_positive": 0, "unknown_positive": 3, "unknown_negative": 5 }, "metrics": { "decided": 0, "total": 8, "decision_coverage": 0.0, "negative_detection_count": 0, "negative_total": 5 }, "scope": "Frozen arms-only repeated-posture contract; labels were assistant visual drafts before pose inference. No test-label tuning.", "freeze_sha256": "efc191be3cad61cda754ef9be28bce2b73c848c22259158af541d7d9bf95b2ec", "matcher_sha256": "7b168ca963abd419feeee6c69918217c408c8cd098f2d46a4e9a2bba0fb9b1e7", "extractor_sha256": "a203bb3e42325d0922504cac734f0372a54ec48f87662b6bbdea097a8f86aadc", "cases": [ { "id": "right_two_cycles", "reference_id": "reference_center", "candidate_id": "right_two_cycles", "expected": "positive", "required_sequence": [ "arms_low", "arms_high", "arms_low", "arms_high", "arms_low" ], "group": "real_contiguous_segment", "label_basis": "visible ordered two-cycle arm sequence; no requirement of identical joint angles, landing mechanics, or exercise quality", "title": "DVIDS 우측 인물: 두 번의 팔 올리기", "status": "unknown", "reason": "reference_contract_not_observable", "outcome": "unknown_positive", "completed_stages": 4, "required_stages": 5, "coverage": 0.9393939393939394, "reference_issues": [ "insufficient_reference_visibility:0", "insufficient_reference_dwell:1", "insufficient_reference_visibility:1", "insufficient_reference_dwell:3", "insufficient_reference_visibility:3", "insufficient_reference_dwell:4", "insufficient_reference_visibility:4" ] }, { "id": "commons_two_cycles", "reference_id": "reference_center", "candidate_id": "commons_two_cycles", "expected": "positive", "required_sequence": [ "arms_low", "arms_high", "arms_low", "arms_high", "arms_low" ], "group": "real_contiguous_segment", "label_basis": "visible ordered two-cycle arm sequence; no requirement of identical joint angles, landing mechanics, or exercise quality", "title": "별도 촬영: 두 번의 팔 올리기", "status": "unknown", "reason": "reference_contract_not_observable", "outcome": "unknown_positive", "completed_stages": 3, "required_stages": 5, "coverage": 1.0, "reference_issues": [ "insufficient_reference_visibility:0", "insufficient_reference_dwell:1", "insufficient_reference_visibility:1", "insufficient_reference_dwell:3", "insufficient_reference_visibility:3", "insufficient_reference_dwell:4", "insufficient_reference_visibility:4" ] }, { "id": "commons_later_two_cycles", "reference_id": "reference_center", "candidate_id": "commons_later_two_cycles", "expected": "positive", "required_sequence": [ "arms_low", "arms_high", "arms_low", "arms_high", "arms_low" ], "group": "real_contiguous_segment", "label_basis": "visible ordered two-cycle arm sequence; no requirement of identical joint angles, landing mechanics, or exercise quality", "title": "같은 Commons 수행의 뒤쪽 두 반복", "status": "unknown", "reason": "reference_contract_not_observable", "outcome": "unknown_positive", "completed_stages": 3, "required_stages": 5, "coverage": 1.0, "reference_issues": [ "insufficient_reference_visibility:0", "insufficient_reference_dwell:1", "insufficient_reference_visibility:1", "insufficient_reference_dwell:3", "insufficient_reference_visibility:3", "insufficient_reference_dwell:4", "insufficient_reference_visibility:4" ] }, { "id": "right_standing", "reference_id": "reference_center", "candidate_id": "right_standing", "expected": "negative", "required_sequence": [ "arms_low", "arms_high", "arms_low", "arms_high", "arms_low" ], "group": "real_contiguous_segment", "label_basis": "visible ordered two-cycle arm sequence; no requirement of identical joint angles, landing mechanics, or exercise quality", "title": "실제 비수행 구간: 손을 허리에 두고 서 있기", "status": "unknown", "reason": "reference_contract_not_observable", "outcome": "unknown_negative", "completed_stages": 1, "required_stages": 5, "coverage": 0.2727272727272727, "reference_issues": [ "insufficient_reference_visibility:0", "insufficient_reference_dwell:1", "insufficient_reference_visibility:1", "insufficient_reference_dwell:3", "insufficient_reference_visibility:3", "insufficient_reference_dwell:4", "insufficient_reference_visibility:4" ] }, { "id": "right_one_cycle", "reference_id": "reference_center", "candidate_id": "right_one_cycle", "expected": "negative", "required_sequence": [ "arms_low", "arms_high", "arms_low", "arms_high", "arms_low" ], "group": "deterministic_control", "label_basis": "visible ordered two-cycle arm sequence; no requirement of identical joint angles, landing mechanics, or exercise quality", "title": "한 번만 수행: 후반 반복을 잘라낸 대조군", "status": "unknown", "reason": "reference_contract_not_observable", "outcome": "unknown_negative", "completed_stages": 3, "required_stages": 5, "coverage": 1.0, "reference_issues": [ "insufficient_reference_visibility:0", "insufficient_reference_dwell:1", "insufficient_reference_visibility:1", "insufficient_reference_dwell:3", "insufficient_reference_visibility:3", "insufficient_reference_dwell:4", "insufficient_reference_visibility:4" ] }, { "id": "commons_one_cycle", "reference_id": "reference_center", "candidate_id": "commons_one_cycle", "expected": "negative", "required_sequence": [ "arms_low", "arms_high", "arms_low", "arms_high", "arms_low" ], "group": "deterministic_control", "label_basis": "visible ordered two-cycle arm sequence; no requirement of identical joint angles, landing mechanics, or exercise quality", "title": "한 번만 수행: 별도 촬영의 후반 반복 잘라내기", "status": "unknown", "reason": "reference_contract_not_observable", "outcome": "unknown_negative", "completed_stages": 2, "required_stages": 5, "coverage": 1.0, "reference_issues": [ "insufficient_reference_visibility:0", "insufficient_reference_dwell:1", "insufficient_reference_visibility:1", "insufficient_reference_dwell:3", "insufficient_reference_visibility:3", "insufficient_reference_dwell:4", "insufficient_reference_visibility:4" ] }, { "id": "right_missing_middle", "reference_id": "reference_center", "candidate_id": "right_missing_middle", "expected": "negative", "required_sequence": [ "arms_low", "arms_high", "arms_low", "arms_high", "arms_low" ], "group": "deterministic_control", "label_basis": "visible ordered two-cycle arm sequence; no requirement of identical joint angles, landing mechanics, or exercise quality", "title": "중간 내려오기 삭제: 편집 대조군", "status": "unknown", "reason": "reference_contract_not_observable", "outcome": "unknown_negative", "completed_stages": 3, "required_stages": 5, "coverage": 1.0, "reference_issues": [ "insufficient_reference_visibility:0", "insufficient_reference_dwell:1", "insufficient_reference_visibility:1", "insufficient_reference_dwell:3", "insufficient_reference_visibility:3", "insufficient_reference_dwell:4", "insufficient_reference_visibility:4" ] }, { "id": "right_frozen_low", "reference_id": "reference_center", "candidate_id": "right_frozen_low", "expected": "negative", "required_sequence": [ "arms_low", "arms_high", "arms_low", "arms_high", "arms_low" ], "group": "deterministic_control", "label_basis": "visible ordered two-cycle arm sequence; no requirement of identical joint angles, landing mechanics, or exercise quality", "title": "내린 팔 정지: 반복 프레임 대조군", "status": "unknown", "reason": "reference_contract_not_observable", "outcome": "unknown_negative", "completed_stages": 3, "required_stages": 5, "coverage": 1.0, "reference_issues": [ "insufficient_reference_visibility:0", "insufficient_reference_dwell:1", "insufficient_reference_visibility:1", "insufficient_reference_dwell:3", "insufficient_reference_visibility:3", "insufficient_reference_dwell:4", "insufficient_reference_visibility:4" ] } ], "limitations": [ "Small purposively selected case study; no statistical generalization or clinical exercise assessment.", "Reference has a smaller background person; dominant foreground performer is the intended target.", "DVIDS is only 15 fps and the candidate has a small body in a wide shot; confidence failure is an honest UNKNOWN.", "Different arm bend and camera geometry are real nuisance factors; semantic positives do not imply small normalized joint distance.", "Candidate visible-core durations vary with speed. Their labels are semantic drafts, not evidence that a particular model or dwell threshold will accept them.", "No v2 pose predictions or outcomes were consulted to choose these clips or labels." ] }