Welcome to InspirePilots.com

Join the leading DJI Inspire community for free!

Photogrammetry tutorial: converting drone video to georeferenced 3D model

Discussion in 'Inspire 1 Discussion' started by peterpl, Feb 11, 2016.

  1. peterpl

    Joined:
    Feb 8, 2016
    Messages:
    2
    Likes Received:
    0
    Nowadays, amateur drones have an amazing range of applications. You may wonder: “Can I use my drone for photogrammetry?” and the answer is “Yes”. In this tutorial, you will create a georeferenced and measurable 3D model, using YouTube video captured by DJI Inspire 1 using Agisoft PhotoScan and view it with Sputnik GIS

    Source video (4k / 2160p):


    3D Model created using Agisoft PhotoScan:
    [​IMG]

    If you're interested, you can read a tutorial.
     
  2. IrishSights

    Joined:
    Jan 14, 2014
    Messages:
    1,953
    Likes Received:
    453
    Location:
    Bangor, Northern Ireland, UK
    The really useful one for me is Photoscan Pro, I use it for DEM'S, contours, 3D models. $3000 however.
     
  3. IrishSights

    Joined:
    Jan 14, 2014
    Messages:
    1,953
    Likes Received:
    453
    Location:
    Bangor, Northern Ireland, UK
    Ascender, ringolong and J.T. like this.
  4. peterpl

    Joined:
    Feb 8, 2016
    Messages:
    2
    Likes Received:
    0

    Great quality and amazing amount of details! Was the model made using a set of still images with coordinates logged?
     
  5. IrishSights

    Joined:
    Jan 14, 2014
    Messages:
    1,953
    Likes Received:
    453
    Location:
    Bangor, Northern Ireland, UK
    Yes. Using Autopilot on Orbit varying the radius on the go, set to 2 sec. Yes it's georeferenced from the X3 images.

    EDIT: Actually is low res at only 7.5 million points. Did one last week that was 200 million points :)
     
    #5 IrishSights, Feb 11, 2016
    Last edited: Feb 11, 2016
  6. IrishSights

    Joined:
    Jan 14, 2014
    Messages:
    1,953
    Likes Received:
    453
    Location:
    Bangor, Northern Ireland, UK
    Grabing still frames from 4K video gets you only around 8 mp compared to 12 mp from a photo or 16 mp with the X5.
     
  7. J.T.

    Joined:
    May 26, 2014
    Messages:
    53
    Likes Received:
    10
    Superb model.