5 comments for “What’s this?

  1. Luther Burgsvik
    November 18, 2019 at 14:03

    The angles that a camera on a Predator Drone can achieve (X, Y, Z-axes and also rotation)?

    Although I’m not sure what the parallelagram represents, or indeed why its a parallelagram rather than a basic square.

    • Chuckles
      November 18, 2019 at 20:36

      Not sure what you’re asking Luther? After a photogrammetric flight you ave a series of photographs or video frames along the flight lines the aircraft has followed.

      In order to create a mosaic of photos of the ground or a digital terrain model of the altitude variations it is necessary to either record or recreate the position in space at which each image was recorded, and the orientation of the camera when it took the picture.

      Lens distortions, focal lengths and such are also necessary.

      With all of that, a bit of luck, a following wind, and an awful lot of computation it’s possible to do it.

      Up to now it’s required excruciatingly finicky and extended calibration of the system and numerous passes through the data to achieve, and hopefully they’vecomeup with some cleverer ways to do the processing.

      • Luther Burgsvik
        November 18, 2019 at 21:05

        Ah ok, I misunderstood. I thought it was a post asking to guess what the diagram represents, something along the lines of James Higham various quiz-based posts.

  2. dearieme
    November 19, 2019 at 00:37

    The top bit is the drone and the quadrilateral is the wedding party that it is about to blow to smithereens.

    • Chuckles
      November 19, 2019 at 13:57

      Just part of the wedding photo, then? Isn’t diversification wonderful?

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