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구조물 결함 검출 — YOLO + VLM 2단 파이프라인

검출기(1차)가 후보를 찾고, Cosmos-Reason VLM(2차)이 "진짜 균열인가, 이음부/그림자/얼룩인가"를 맥락판정 + 설명. RFP #1 수요(오탐저감)이자 우리 해자.

실 터널 이미지 YOLO 검출(후보) crop Cosmos-Reason2-8B 판정 오탐 제거 + 설명
모델
YOLOv8n-seg + Cosmos-Reason2-8B
균열 검출 확인
24/37
오탐 후보 제거
5/21
범례:초록 = VLM이 균열 확인 빨강 = VLM이 오탐(이음부/그림자/얼룩)으로 제거
검출 결과
균열 이미지 · crack_URT001_2021_01_03_001_6408.jpg · YOLO 검출 10개
CRACK · 균열 확인 conf 0.415
The feature is a thin, elongated, slightly irregular line with minor branching and scattered dark specks, consistent with a crack
NOT_CRACK · 오탐 제거 conf 0.219
The dark linear feature is likely a construction or expansion joint, as it runs vertically and has a consistent, straight appearan
NOT_CRACK · 오탐 제거 conf 0.189
The dark/linear feature is likely a construction or expansion joint, not a crack, as it appears uniform and follows the concrete's
CRACK · 균열 확인 conf 0.187
The feature is a narrow, vertical, slightly irregular line with scattered debris, consistent with a real crack rather than a joint
CRACK · 균열 확인 conf 0.174
The feature is a thin, slightly irregular line that cuts through the concrete surface, consistent with a crack rather than a joint
CRACK · 균열 확인 conf 0.166
The feature is a thin, irregular line with a rough texture and scattered debris, consistent with a crack rather than a joint or sh
CRACK · 균열 확인 conf 0.14
The feature is a thin, continuous, slightly jagged line consistent with a crack, not a joint or shadow, and shows no signs of effl
CRACK · 균열 확인 conf 0.126
The feature is a thin, irregular crack with a rough texture and branching pattern, consistent with concrete cracking rather than a
CRACK · 균열 확인 conf 0.122
The feature is a continuous, irregular line with visible separation and rough texture, consistent with a structural crack rather t
CRACK · 균열 확인 conf 0.103
The feature is a narrow, continuous linear break with irregular spacing and minor debris, consistent with a structural crack rathe
검출 결과
균열 이미지 · crack_URT001_2021_01_03_001_3436.jpg · YOLO 검출 4개
CRACK · 균열 확인 conf 0.404
The feature is a thin, dark, slightly irregular line with branching patterns consistent with a crack, showing signs of surface dis
NOT_CRACK · 오탐 제거 conf 0.181
CRACK · 균열 확인 conf 0.158
The dark, linear feature is a genuine crack, as it shows a clear, irregular path through the concrete with visible separation and
CRACK · 균열 확인 conf 0.108
The feature is a thin, irregular dark line with branching and rough texture, consistent with a crack rather than a joint or shadow
검출 결과
정상(무균열) 이미지 · norm_URT002_2021_01_12_001_1306.jpg · YOLO 검출 3개
CRACK · 균열 확인 conf 0.17
The dark linear feature is a continuous, jagged crack with rough edges and exposed aggregate, typical of structural cracking rathe
CRACK · 균열 확인 conf 0.153
The feature is a continuous, jagged line with irregular spacing and rough edges, typical of a structural crack in concrete, rather
NOT_CRACK · 오탐 제거 conf 0.117
Construction joint
검출 결과
균열 이미지 · crack_URT001_2021_01_03_001_1944.jpg · YOLO 검출 2개
NOT_CRACK · 오탐 제거 conf 0.374
Construction joint or cast shadow.
CRACK · 균열 확인 conf 0.206
The image shows a thin, irregular, dark line that matches the appearance of a structural crack, with no features suggesting it is