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ARXIV:2604.27928 · INDUSTRIAL INSPECTION · SUBMITTED 01 MAY · 15:05 UTC · FRESHNESS STALE
ARXIV:2604.27928INDUSTRIAL INSPECTIONSUBMITTED 01 MAY · 15:05 UTCFRESHNESS STALEShipeng Liu · Liang Zhao · Dengfeng Chen · Zhanping Song · arXiv
A training-free framework for tunnel defect inspection and engineering interpretation using visual recalibration and entity reconstruction.
Opportunity summary
Pain A training-free framework for tunnel defect inspection and engineering interpretation using visual recalibration and entity reconstruction.
Evidence 0 refs | 3 sources | 50% coverage
Blocker Evidence unverified
A training-free framework for tunnel defect inspection and engineering interpretation using visual recalibration and entity reconstruction. Existing training-free foundation-model pipelines usually stop at coarse open-vocabulary proposals, which are difficult to use directly in interference-heavy…
Tunnel inspection requires outputs that can support defect localization, measurement, severity grading, and engineering documentation. Existing training-free foundation-model pipelines usually stop at coarse open-vocabulary proposals, which are difficult to use directly in interference-heavy tunnel…
ScienceToStartup currently rates this 4.0/10 on the public viability pass. Tunnel inspection requires outputs that can support defect localization, measurement, severity grading, and engineering documentation.
Industrial Inspection moved forward this cycle; last verified May 2026. Public score 4.0/10.
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A training-free framework for tunnel defect inspection and engineering interpretation using visual recalibration and entity reconstruction.
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Paper Pack
10.48550/arXiv.2604.27928A training-free framework for tunnel defect inspection and engineering interpretation using visual recalibration and entity reconstruction.
Abstract
Tunnel inspection requires outputs that can support defect localization, measurement, severity grading, and engineering documentation. Existing training-free foundation-model pipelines usually stop at coarse open-vocabulary proposals, which are difficult to use directly in interference-heavy tunnel scenes. We propose a training-free framework TunnelMIND. Specifically, language-guided defect proposals are not treated as final outputs; instead, their spatial support is recalibrated at inference time through dense visual consistency, so that coarse semantic anchors can be transformed into more reliable prompts under tunnel-specific hard negatives. The resulting masks are further reconstructed into structured defect entities with category, location, geometry, severity, and context attributes, which are then mapped to retrieval-grounded explanation and engineering-readable report generation under expert knowledge constraints. On visible, GPR, and road defect tasks, TunnelMIND achieves F1 scores of 0.68, 0.78, and 0.72, respectively. Overall, TunnelMIND shows that training-free tunnel inspection can move beyond coarse localization toward structured defect evidence for engineering assessment.
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Proof status
unverified0 refs; 3 sources; 50% coverage.
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PROBLEM
A training-free framework for tunnel defect inspection and engineering interpretation using visual recalibration and entity reconstruction. Existing training-free foundation-model pipelines usually stop at coarse open-vocabulary proposals, which are difficult to use directly in...
METHOD
Tunnel inspection requires outputs that can support defect localization, measurement, severity grading, and engineering documentation. Existing training-free foundation-model pipelines usually stop at coarse open-vocabulary proposals, which are difficult to use directly in inter...
RESULT
ScienceToStartup currently rates this 4.0/10 on the public viability pass. Tunnel inspection requires outputs that can support defect localization, measurement, severity grading, and engineering documentation.
WHY NOW
Industrial Inspection moved forward this cycle; last verified May 2026. Public score 4.0/10.
{"file name": "input.pdf", "number of pages": 27, "author": "Shipeng Liu; Liang Zhao; Dengfeng Chen; Zhanping Song"
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A training-free framework for tunnel defect inspection and engineering interpretation using visual recalibration and entity reconstruction.
Segment
Industrial Inspection
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Commercial read
4.0/10 public viability
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2/3 checks · 67%
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reason
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proof status
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