SightMetro

Log scaling, from a smartphone

Measure an entire log stack with the phone in your pocket.

SightMetro is an Android app that scales logs from a photo or a short video. Point your phone at a log pile, a log loader, a loaded truck or an open-door container — and get log counts, diameters and statistics in seconds.

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Centimetre-level accuracy  ·  5 mm with QR-code reference  ·  No extra hardware

12 logs detected
cm-levelStandard measurement accuracy
5 mmWith QR-code reference
4 scenariosPiles, loaders, trucks, containers
AndroidRuns on a standard smartphone

The product

One app for every log you handle

SightMetro replaces manual scaling with computer vision. Capture a stack with your phone camera and let the app detect each visible log end, measure it and build the statistics you need.

Photo & video capture

Scale a stack from a single photo or a short video recorded while walking along the pile.

Automatic detection

Log ends are detected automatically — no manual marking and no reference poles.

Measurements & statistics

Log count, diameter distribution and volume statistics for every stack you capture.

Built for the field

Designed for outdoor conditions and the everyday Android phones your team already carries.

How it works

Three steps, one smartphone

No tripods, no laser scanners, no special training.

1

Capture

Stand in front of the stack and take a photo, or record a short video while moving along the pile.

2

Measure

The app detects each visible log end and calculates diameters and stack statistics on the device.

3

Review

Check the results on site and use the statistics for reporting and settlement.

Use cases

Wherever logs change hands

The same app covers the whole journey, from the forest landing to the terminal gate.

Stacked logs at a forest landing

Log piles

Scale stacked logs at roadside landings, storage yards and sawmill intakes.

Log loader handling a bundle of logs

Log loaders

Measure logs held or handled by a log loader, directly on the working site.

Logging truck loaded with cut logs

Trucks

Scale a loaded truck before it leaves the site and keep a record of every load.

Open shipping container filled with logs

Open-door containers

Verify container loads at the terminal while the doors are open.

Technology

Computer vision built for real log yards

SightMetro combines several measurement methods in one app, so you get reliable results in real conditions — with a standard phone camera.

cm-level

2D planar algorithm

A planar, image-based algorithm measures log ends directly from the photo or video frame.

cm-level

Monocular depth estimation

A single-camera 3D approach estimates depth to handle perspective and irregular stacking.

5 mm

QR-code reference

A QR code of known size in the scene is used as a scale reference for higher precision.

In development

Stereo vision

A dual-camera version for even higher-precision measurement is currently under development.

PlatformAndroid smartphone app
InputPhoto or video captured with the phone camera
AccuracyCentimetre level as standard; 5 mm with a QR-code reference
ScenariosLog piles, log loaders, trucks, open-door containers
OutputLog count, diameter and volume statistics
HardwareStandard smartphone camera (stereo version in development)

About SightMetro

Measurement tools for the timber supply chain

SightMetro develops computer-vision based measurement tools for forestry, sawmills, ports and log logistics. Our goal is simple: make log scaling faster, more consistent and available to anyone with a smartphone.

Our team combines expertise in mobile development, computer vision and the timber trade. The product is in active use and continues to evolve with the feedback of operators in the field.

SightMetro team at a log yard

Contact

Talk to us

Tell us about your operation — log piles, loaders, trucks or containers — and we will show you how SightMetro fits your workflow.