Sectors

Solution

Compare surveys

Get digital 3D maps and models for each uploaded date, and view and measure how the work has progressed between them.

What it's for

See and measure how a site changes between dates.

Each uploaded date produces a map and a 3D model. Compare two dates to see what changed and measure the difference.

Drag to compare the two dates.

The same plot on two dates: foundations being dug, then the structure built.Date ADate B

What you need

Two or more surveys of the same site.

Data from each flight or results already processed, with the date of each survey. All must cover the same area, in the same coordinate system.

  • Data from each flight, over the same area

Step by step

  1. 01

    Upload

    Upload data or the results from each flight.

  2. 02

    Process

    Turn data into results.

  3. 03

    Compare

    Compare surveys and see what changed.

  4. 04

    Measure

    Measure areas, distances and volumes.

  5. 05

    Share

    Share the result with your client or a colleague.

Results

Every survey of the same site in one project.

Each survey is kept with its date. Go back to any date and compare it with another.

  • Automatic map creation

  • Orthophoto and 3D model for each date

  • Side-by-side comparison of two dates

  • Measurements of the changes between dates

  • Automatic report with the measurements

  • History your team and client can access

FAQ

What people usually ask.

Can I follow the site between flights?

Yes. Add satellite imagery and vegetation indices such as NDVI via WMS, and see how things change between drone surveys.

Can I use results that are already processed?

Yes. Import them and organise them by date in the same project.

Can the team look at the history?

Yes. Anyone with access to the project sees every date, at the access level the administrator sets.

Next step

Compare your surveys in NioMap.

Create a free account and try it with your own survey data: it includes 1 hour of processing and 10 GB of storage. If you have questions, talk to us.