Setup & match
Batch-upload your nadir JPGs. Optionally add a KML/KMZ of the line and GeoMeasure matches each photo to its pole by GPS.
Laser-scaled drone measurement
Measure pole infrastructure from the sky.
GeoMeasure turns a single straight-down drone photo into accurate real-world dimensions — pole-tip widths and crossarm spans — scaled from the DJI laser rangefinder. No tape, no climbing, no second site visit.
±1%validated accuracy
1 photoper pole
CSVone-click export
What GeoMeasure does
Purpose-built for distribution-pole inspection with a DJI Matrice 4 Series UAS and its laser rangefinder.
Laser-scaled accuracy
Scale comes straight from the rangefinder distance to the pole tip — corrected per lens and for digital zoom — so sizes read within about ±1% in good conditions.
One nadir photo per pole
Fly straight down with the laser on the tip and shoot a single frame. No overlapping flight lines, no photogrammetry, no 3D reconstruction step.
Tip X, Tip Y & crossarm
Capture the two pole-tip widths and the external crossarm span on one zoomable canvas, each drawn and colour-coded right on the image.
GPS auto-matching
Add a KML/KMZ of the line and each photo is matched to its pole by GPS automatically — with a manual override whenever you need it.
Confidence on every reading
Each result is flagged Low / Medium / High from off-nadir angle, laser status and range — so you know which numbers to trust at a glance.
One-click CSV export
Export one tidy row per pole — widths, laser distance, lens, accuracy and confidence — ready for your inspection report or asset system.
See it in action
Zoom into the nadir image and drop two points. GeoMeasure draws every measurement, colour-coded by axis.
- Pole tip X
width across the tip171 mm - Pole tip Y
tip width, other axis183 mm - Crossarm
external span1 649 mm
Keep crews on the ground
No one has to climb for a simple measurement
Pole-tip widths and crossarm spans used to mean sending someone up the pole — working at height, beside live conductors, in all weather. GeoMeasure takes those everyday measurements from a single nadir drone photo, so routine sizing no longer carries a climbing or fall risk.
- No working at height for routine width checks
- No exposure to live conductors to read a dimension
- Capture the whole line in one flight — measure later from the desk
How we validated the accuracy
We don’t ask you to take “±1%” on faith. Here’s the calibration test behind it.
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1
Known ground truth. We laid a flat target on level paving and measured it by hand with a steel tape — a 1 830 mm reference span.
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2
Flew it like a real pole. A DJI Matrice 4 captured the target nadir with the laser rangefinder on it, at the same standoff and zoom we recommend in the field.
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3
Measured & compared. We measured the target in GeoMeasure exactly as you would, then checked the result against the tape.
±1%agreement with the tape under good conditions
0.3–0.6%observed error on validated frames
RTKlaser distance cross-checked
Best results come from near-nadir captures (off-nadir close to 0°), a valid laser return, and a moderate standoff. Accuracy degrades on oblique shots or when the laser doesn’t land on the target — which is why every reading carries a Low / Medium / High confidence flag.
How to capture
Field steps for the drone pilot — one clean, laser-ranged nadir frame per pole.
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1
Launch & fly to the pole
Take off and bring the drone to the target structure, positioning it directly over the pole so the tip sits in the centre of frame.
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2
Climb to about 11 m above the tip
Hold a steady hover roughly 11 m above the pole tip (target 10–12 m). This moderate stand-off gave the best ±1% results in testing — flying in close makes the laser scale less reliable.
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3
Point the camera straight down
Set the gimbal to nadir (−90°, 0° off-nadir). The shot must look perfectly straight down — any tilt skews the measurement.
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4
Range the pole tip with the laser
Enable the laser rangefinder and place the laser dot on the pole tip. Wait for a stable reading of about 11 m (10–12 m) — this camera-to-tip distance is what scales every measurement.
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5
Use the Zoom camera
Switch to the Zoom lens (3× or 7×) so the crossarm and insulators fill the view — don’t pinch-zoom past the optical tele, which softens detail.
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6
Capture one nadir still
Take a single still JPEG — nadir only, laser active. One photo per pole, then move on to the next structure.
How to measure
Three stages, from photos to a finished CSV.
Measure
Pick a pole, zoom the image and drop two points for each dimension. The laser distance scales it to millimetres with a confidence flag.
Results & export
Review one row per pole — tip X/Y, crossarm, laser distance, accuracy and confidence — then export the whole survey as CSV.
Ready to measure?
Upload your first set of nadir photos and export results in minutes.
Setup & Match
Batch-upload your nadir JPGs (shot with the laser rangefinder on the pole tip) and head to Measure. Optionally upload the power line as a KML/KMZ (one Point placemark per pole) to label and group images — images are then matched to poles by GPS, override any match below.
1 · Nadir images
Drop JPG images
or browse files
2 · Line file (KML / KMZ) — optional
Drop KML / KMZ
or browse
Upload your nadir images to begin. (A KML of the line is optional.)
| # | Pole | Assigned image | Match dist. | Laser dist. | Laser status |
|---|
Measure
How this is measured
Sizes are scaled from the DJI laser
rangefinder distance to the target, taking the measured feature to lie on the
laser-ranged plane in a near-nadir shot. Zoom in to place points precisely.
Each result reports its confidence and the factors driving it.
scroll = zoom · drag = pan · click = place 2 points
Select a pole to begin.
Active: Pole tip X
Points: 0/2—
Results / Export
One row per pole: pole-tip width (X & Y) and crossarm external width.
| # | Pole | Image | Tip X (mm) | Tip Y (mm) | Crossarm (mm) | Laser (m) | Acc. | Conf. | Notes |
|---|
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