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Reality capture with drones will be necessary to win projects and monitor progress in the very near future. Site Scan + ReCap 360 Pro is the only complete solution that includes the hardware, software and support that you need to be successful.

Dan Mckinnon, Product Manager at 3DR and Dominique Pouliquen, Business Development Manager at Autodesk teamed up to explain how to use the power of Site Scan and Recap 360 to capture, process and use aerial imagery to improve the construction business.

When asked about the main pain points of current technologies, 45% of webinar attendees acknowledged that the time spend to collect the imagery needed to do volumetric stockpile calculations and track the status of a construction project is the main drawback. 27% of attendees think that cost is the major pain point, whereas 10% care about the safety of their workforce on the construction site.

Site Scan + ReCap 360 Pro is the only complete solution that includes the hardware, software and support that is needed to be successful. With the Autodesk 360 cloud compatibility aerial data captured with Site Scan can be used with every Autodesk tool, like ReMake, InfraWorks, Civil3D, Revit, Stingray, and more.

Below are the answers to the most popular questions asked by the attendees during the webinar:

1. How long does it take typically to process the images to 3DR and ReCap 360 before getting the final files to use in Civil 3D.

Depending on the amount of images that were submitted. For smaller projects of 100–150 images it can take from 2–4 hours, and for larger projects of 150–250 images it can take somewhere from 4–8 hours max. Processing is done in parallel for all jobs, so you can process multiple projects at the same time, without needing to wait for one to be finished to process the next one.

2. Can additional pictures be added to improve the quality of the model?

Yes. All the projects can be accessed afterwards and edited. You can also add or remove some images to improve the 3D model. In the Site Scan web application you can add additional images from other cameras or Site Scan missions to improve the model. This comes in handy when combining a survey and a scan mission.

3. Does Site Scan and ReCap 360 support the use of ground control points? How do you integrate ground control points when the client does require high accuracy?

Yes! However, Ground Control Points are not required for reasonable accuracy, but using them will always improve accuracy. More information on ground control points here: https://3dr.com/support/articles/209425086/using_site_scan_and_recap_360_pro_to_set/

4. Are the images taken with Site Scan going to be geotagged? How accurate will this be (for a Surveyor)?

Yes, the images are geotagged directly on the tablet. Accuracy of the geotagging is dependent on the quality of the GPS signal, typically 2–6 ft, as poor as 10 ft. This is not an issue for surveyors who will typically use Ground Control Points to correct for this. Relative accuracy within the model is 1–3x the Ground Sampling Distance with or without GCPs (2–6 cm relative accuracy).

5. Some mines and sites like to calculate elevations, is this possible?

Yes, the Site Scan “survey mode” and “scan mode” take the imagery needed to calculates Digital Elevation Models (DEMs) so you can measure elevations, areas and volumes of stockpiles.

6. What are the new Part 107 regulations and when will the 3DR FAA part 107 study guide be available?

In June the FAA released new drone regulations that make easy for everyone to fly a drone commercially. We will be covering different sections in the next few weeks.