Industries

Metal and infrastructure

Watch a crack grow instead of finding it after it has gone

Brackets, flanges and weld seams carry load until they do not. Today someone goes out with a UV lamp on an interval and looks. A fixed camera on the part reads the same coating every day, measures the indication, and tells you when it crosses your limit.

  • Reads the Riluminati coating: segments and measures the indication
  • Fixed camera, continuous watch, no routine site visit
  • Alerts on a length or area limit you set

We support the inspection of mounting brackets, flanges, weld seams, load-bearing steelwork.

Bolted steel flange of the kind that carries load in fixed infrastructure

Case 01 · Monitoring infrastructure over time

Watching brackets in service, day after day

Not an inspection station — a camera left on a structure, reading the same bracket every day. The brackets are coated with Riluminati, so a crack in the steel shows yellow-green under UV. Riluminati makes it visible; we measure it and watch it grow. Deepvis does not produce or sell the Riluminati coating — it supports the inspection of it. It does not replace a certified NDT inspection. It watches the same indication in between them.

Coated bracket under UV with the top coat intact and no crack
Top coat intact, no crack. The reference state.
Coated bracket under UV showing coating wear but no crack
Coating worn through in patches, still no crack. Wear fluoresces as diffuse speckle.
Coated bracket under UV with a fluorescent crack indication
Cracked. The indication is a sharp line, not a patch.
Images to train
130

Photographs of cracked brackets, marked up by hand.

Precision
100%

No false positives — everything it flagged was a real crack. Nobody gets sent out for nothing.

mAP@50
90.9%

The standard benchmark score for how closely the outlines match the ones drawn by hand.

How crack luminescence works

How crack luminescence works A welded steel joint under fatigue load carries a luminescent indicator coating with a black top coat over it. When the steel cracks, the coating cracks with it, and under UV light the indicator layer fluoresces along the crack. weld fatigue load fatigue load UV light crack through the coating
  • Top coat. Black, sprayed over the indicator layer.
  • Indicator coat. Fluoresces yellow-green under 365 nm UV.
  • Substrate. Steel or aluminium. A crack in it cracks the coating.
Riluminati 815 fluorescent indicator layer and 816 black overlay spray cans

The coating system is Riluminati, developed by MR Chemie with BAM. Two cans: 815 indicator layer and 816 black overlay, both from MR Chemie. Deepvis supports the inspection of it.

Case 02 · Weld inspection on the line

Automated weld inspection at JP Group

This one is an inspection station in a production cell. Circumferential welds on machined steel, checked on the surface for pores and spatter as the parts come through. The point is not only finding the defect — it is who has to be standing there when it is found.

The bottleneck was a person, not a machine

  1. 01 An operator can run a set number of parts — say fifty — before the work has to be verified together with a welding coordinator.
  2. 02 Hit that number and production of that part stops until the coordinator is free. If they are off sick or tied up on another job, the cell waits.
  3. 03 Automating the weld control removes the gate. The operator keeps running, and the coordinator spends their time where a qualified judgement is actually needed.
Weld cap on a machined steel component with no visible imperfection
Sound weld cap. Even ripple, no surface imperfection. The reference.
Weld cap with a surface-breaking gas pore marked
A surface-breaking gas pore, about a millimetre across, on a dark oxidised cap.
Weld cap with a raised ball of spatter on it
Spatter: a ball of metal sitting on the cap. Also an imperfection, but a different one, and it is not a pore.

ISO 5817

Working to the standard, not around it

A pore is not automatically a reject. ISO 5817 sets quality levels — B, C and D — and the limits scale with material thickness, so the same pore passes on one part and fails on another. Which level applies is on the drawing.

  • That makes it a measuring job rather than a spotting job. We segment the imperfection and report a size, which is the number a level is held against.
  • Pores and spatter are separate imperfection types with separate limits, so they are trained and reported as separate classes.
  • Every part is imaged and kept, which is what makes the control auditable rather than a claim.

Read in blog

AI-løsning fjerner flaskehals på maskinfabrik – kan nu tage større ordrer

The case on video, in Danish.

Watch on YouTube →
Nordisk Svejse Kontrol A/S
“Deepvis fandt defekter, som operatøren og svejsekoordinatoren ikke kunne se med det blotte øje. NSK har set resultaterne og kan bekræfte dem.”
Thais Brix Nordisk Svejse Kontrol Nordisk Svejse Kontrol A/S →

Coming soon · Ongoing MADE project

AI on the radiograph: X-ray weld inspection

Surface inspection scans the weld optically. X-ray reads what is inside the weld: porosity, inclusions and lack of fusion — none of it visible on the surface. We are training models to read radiographs in an ongoing demonstration project with MADE. Not a shipped capability yet — in active development and coming soon.

X-ray image of a weld on a metal part with a dark indication running along the root
MADE MADE Manufacturing Academy of Denmark, demonstration project Visit site →

A weld on a metal part, seen through X-ray. The dark line along the root is the kind of indication only X-ray sees — nothing on the surface gives it away.

In partnership with

On the machine

Mounting, cycle time and rejects

Where the camera goes, how fast the result comes back, and what happens to a bad part.

  1. 01

    Camera fixed on the part

    Mounted on the bracket or the flange and left there. No access platform, no shutdown, and no trip out for a routine look.

  2. 02

    Measured, not eyeballed

    The indication is segmented, so you get a length and an area, and the same measurement method next month.

  3. 03

    Alerts on your limit

    Set the limit in mm or mm². You hear about it when the limit is crossed, not when someone next happens to visit.

  4. 04

    Every reading kept

    A growth curve per bracket, instead of a pass or fail per inspection round.

Defect list

What we inspect for

01

Fatigue cracks

At weld toes, radii and bolt holes, where the load concentrates. Segmented one by one, so two cracks on one bracket are two records.

02

Crack growth

Length and area measured the same way every reading, so this week and last week are comparable numbers rather than two opinions.

03

Coating wear, not a crack

A top coat worn thin fluoresces as well, in diffuse patches. Telling that apart from a crack line is most of the job, and getting it wrong means a call-out for nothing.

What changes

What changes on the line

Four things a shift notices.

No routine site visit

Interval inspection costs access, a rope team or a platform, and usually downtime. A fixed camera reads the same part daily for the cost of the camera.

You can see the trend

A crack that has grown over a month is a different decision from one that has not moved in a year. An interval inspection cannot tell those two apart.

Replace on evidence

Brackets come out when the measurement says so, rather than on a fixed schedule or after a failure.

Feeds the next design

Where the cracks start and how fast they run, across every bracket you are watching. That goes back to the designer.

The method

How we find them

Four steps, whatever the part is. Everything above was marked up by hand first. That is how the model learns your defects, and the only way it learns them.

You set what counts

We start from your reject criteria, on your parts. The model returns what you marked up and nothing else.

Lighting first

Camera, optics and lighting are picked for the material. Frosted PP and a black closure are different jobs.

About 120 parts

A hundred frames off the running tool, 120 marked up. Your resin, your regrind, your colours, your fixture.

Two hours to a model

Training takes about two hours. After that every part is checked in the cycle and rejected on your limit.

First step

Prove the defects are detectable

You send 100 parts — 50 good, 50 faulty. We photograph them, train a model on them in our lab, and 14 days later you have the report.

What the report contains — click a page

Guarantee

If we cannot find the defect type you point at, you get your money back. Buy the system within 60 days and the fee is credited in full.

FAQ

Frequently Asked Questions

Simple and Easy to deploy AI Inspection Systems for modern production environments.

What types of defects can Deepvis detect?
Deepvis can detect complex and unpredictable defects that are common in recycled plastic, such as black specks, short shots, overmoulding, contamination, burn marks, and geometry defects. The model is trained on annotated examples of the defect types you care about, and holds up against the material, colour and surface variation that comes with recycled feedstock.
Do I need thousands of images to train the system?
No. Around 120 annotated images is enough to train a model. This is a large reduction compared to traditional systems that require thousands of manually labelled samples. It is however important to note that challenging applications typically perform better, the better the data.
Can Deepvis keep up with fast production speeds?
Yes — with the right GPU hardware, Deepvis can analyze parts in real time down to 0.5-second cycle times, making it suitable for high-speed packaging and manufacturinglines.
How is Deepvis different from traditional vision systems?
Traditional systems rely on rule-based image processing and require reprogramming every time a product changes. Deepvis uses AI to adapt to product variation and requires no specialist for setup, making it ideal for agile manufacturers where long and complex setuptimes are out of the question.
What's included in the Deepvis inspectionsystem?
Each unit includes a camera, AI edge computer, and software platform for inspection. Customers can purchase the full solution as a one-time investment, with optional software licensing and support packages.
How do I know if Deepvis is right for my application?
If your quality control process is manual, time-consuming, and affected by frequent changes in product, lighting, or material, Deepvis is built for you. Our system is designed to reduce man-hours in visual inspection — especially in high-volume, high-variation environments where traditional systems fall short. We typically start with a discovery call and a pilot to demonstrate time savings and operational impact.

Explore Smarter Quality Control with Deepvis

Discover how AI-driven visual inspection can reduce errors, cut costs, and adapt to your production line — without complex setups.