INDUSTRY

Chemical / materials

DaoAI's Chemical / materials: 99%+ Image AUROC, 50μm Min defect, 400m/min Line speed. Chemicals and materials — crystal, granule and surface-defect inspection.

Chemical / process-industry inspection
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High-speed inspection of crystals, granules and surface defects.

On this page: the solution · 6 scenario deep-dives · case studies · long-form articles

Recommended systems: SkyVision · AOI software

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THE SOLUTION

Chemicals / materials, in detail

1. What is actually hard on this line

Surface defects in chemicals and materials share one property: their shapes are open-ended. Bubbles, inclusions, colour variation, pinholes, agglomerates, edge waviness — each splits into further variants, and the defect library is never complete. The background is textured in its own right, so small flaws disappear into it, and coating-to-substrate contrast is weak enough that plain 2D imaging cannot read the height difference at all.

Web lines add speed to that. At high line speed, false calls mean stoppages and scrap, and if normal variation across shifts, machines and material batches is treated as a defect, the line drowns in false calls before it catches anything real.

2. How the solution is put together

  • Learn good product only: APDT positive-sample learning does not require the defect catalogue to be complete, and still localises defect shapes it has never seen — which is the point in open-ended scenarios.

  • Weak contrast is an imaging problem: coatings and webs use 3D ACI (AI-AOI) with point cloud fusion and weak-contrast channel enhancement to recover the height information 2D cannot.

  • Teach the model what normal variation looks like: only after the model has seen normal machine-to-machine and batch-to-batch variation can false calls come down — tuning a threshold will not do it.

  • Line integration: defect positions are returned with web-length coordinates for slitting and traceability. Production data stays inside the plant.

3. Choosing the configuration

ScenarioRecommendedWhat it addresses
Strongly textured surfacesAOI software (unsupervised, good samples)Open-ended defect shapes with no complete sample set
Coating / web, inline3D ACI (point cloud + weak-contrast enhancement)Micron-scale pinholes, agglomerates, edge waviness
High-speed printed film / labels2D ACI with normal-variation learningFalse calls at speed and consistency across machines
Gauge reading / line patrolSkyVisionLevel and gauge readings, leak and spill monitoring

4. How deployment runs

DaoAI's deployment runs in four steps. ① Assessment — agree where defect ends and normal variation begins; in chemicals that boundary is the main source of false calls. ② Configuration — match systems and lighting to web width, line speed and material. ③ On-site deployment — model built from good product; operators are up to speed in about 30 minutes. ④ Feedback — slitting and QC re-checks flow back, and the model updates in minutes.

5. What to measure afterwards

Three numbers: detection rate, false-call rate, full-width coverage. Across DaoAI's deployed chemicals / materials lines the typical picture is 99%+ detection on textured-surface anomalies trained on good product only; 50 µm smallest detectable feature on coated web at 400 m/min with no speed loss and 97%+ accuracy; and >95% detection on high-speed printed film with false calls down 28% at 100% full-width inline coverage.

Figures are the typical range our solution reaches in anonymised industry scenarios. Actual values vary with material, web width and line speed; on-site measurement governs.

Keep reading: scenario deep-dives · case studies · long-form articles

Case studies

Chemicals & materials · web and surface

From low-contrast coating edges and web pinholes to endlessly varied surface flaws — learn only good units and still catch defects you've never seen.

Scene · surface anomaly

A materials maker · textured-surface defects

ChallengeSurface defects are endlessly varied and never fully sampled, and strong background texture masks tiny flaws.

SolutionAPDT positive-sample learning trains on good units only, yet localises defect shapes it has never seen.

99%+Image AUROC
✓Good-only
✓Transferable

Scene · coating & web

A coating-web plant · in-line coating inspection

ChallengePinholes, agglomerates and edge waves are micron-scale; coating-to-substrate contrast is faint and high-speed web is unstable.

Solution3D ACI fuses point clouds with weak-contrast channel enhancement for micron-grade in-line web inspection.

50μmMin defect
400m/minLine speed
97%+Accuracy

Scene · printed film

A printed-film plant · cutting false calls on fast web

ChallengeOn fast-moving printed film, excess false calls mean stoppage and waste — and accuracy must hold across shifts and SKUs.

SolutionACI learns the normal variation across presses and materials to drive down false calls on fast web.

>95%Detection
−28%False calls
100%Full-width

Cases are anonymised industry scenarios; the figures are typical ranges achievable with our solutions.

In-depth cases · IN-DEPTH

Chemical / Materials · in-depth cases

Each case breaks down the path to deployment in a real scenario — industry context, pain points, our solution and the results.

Chemical and materials production line inspection Chemical · 2026-04-27

Unsupervised Anomaly Detection on Textured Surfaces: Learn Good Only, Localize Unseen Defects

A materials plant faced complex surface textures and an endless variety of defect shapes that defy sample collection. DaoAI APDT learns from good products only, holding image-level AUROC above 99% with transferable coverage across new batches.

Read more
Low-contrast Coating Boundary Detection: Dominant-channel Enhancement, 95%+ Recall on Faint Edges Chemical · 2026-04-25

Low-contrast Coating Boundary Detection: Dominant-channel Enhancement, 95%+ Recall on Faint Edges

A coating web plant struggled with near-zero color difference between coating and substrate, leaving edges, skips and shrinkage nearly invisible in grayscale. DaoAI's dominant-channel enhancement amplifies the faint signal, lifting boundary defect recall above 95%.

Read more
DaoAI smart factory with robotic visual inspection Chemical · 2026-04-23

Web Coating Pinhole/Agglomerate Detection: 3D Point-cloud Fusion, >50μm at Line Speed

At a coating web plant, pinholes and agglomerates are micron-scale 3D defects that 2D imaging cannot tell apart from stains. DaoAI's 3D point-cloud fusion detects >50μm defects online at 120–400 m/min, resolving pits and bumps unambiguously.

Read more
DaoAI 2D ACI auto cognitive inspection system Chemical · 2026-04-21

Print Film/Label Web False-alarm Reduction: Learn Per-machine Normal Variation, −28% False Alarms

A print film plant runs many machines and materials, where normal color and pattern variation was flagged as defects by the old system. DaoAI learns the normal-variation baseline per machine and material, cutting false alarms by 28% with 100% full-width online coverage.

Read more
Glass/Nonwoven Surface Defect Detection: Few-shot Go-live, 94%+ Recall Chemical · 2026-04-19

Glass/Nonwoven Surface Defect Detection: Few-shot Go-live, 94%+ Recall

A materials plant had scarce, highly variable defect samples on glass and nonwoven. DaoAI combined few-shot learning with good-only anomaly detection for fast go-live, reaching 94%+ recall on semi-transparent and weak-texture surfaces.

Read more

FAQ

Chemical / Materials · AI Visual Inspection FAQ

What defects does AI vision detect in chemicals and materials?

It covers 3D inspection of web pinholes and agglomerates, low-contrast coating boundaries, false-call reduction on printed film, few-shot defects on glass and nonwovens, and unsupervised texture anomaly detection.

Material surfaces are continuous textures with formless defects, how does AI inspect them?

DaoAI uses unsupervised anomaly detection to learn the normal texture distribution and flags deviations, finding novel flaws without enumerating defect types.

On fast web lines, how are tiny pinholes and agglomerates kept from escaping?

DaoAI 3D inspection captures pinholes, agglomerates and bumps on fast-moving webs, with real-time localization for continuous full-width coverage.

Low-contrast coatings and printed film generate many false calls, how are they reduced?

DaoAI separates true defects from normal printing and coating variation with deep models, sharply cutting false calls so limited review effort targets real issues.