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POI Height Estimation

Discussion in 'Pro/Adv Discussion' started by AP4me, Feb 18, 2016.

  1. AP4me

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    Does anyone have hints on how to estimate the height of various points of interest for shots?

    I mean, I can tell a high school is not as tall as a church, or one church is taller than another, but how do you estimate heights?

    I get (in most cases) higher is better!

    Thanks
     
  2. msinger

    Approved Vendor

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    Why not just fly to the top of the POI and then ascend to your usual filming level?
     
  3. joe21

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    You brought back memories of (long ago) high school. That math formal where x/x = y/y... take a yardstick, measures its shadow. Then measure the objects shadow. Plug numbers into the fractions and easily calculate the missing variable.

    However, there is a much easier way with the Phantom. You cannot run a POI mission in the Go app without setting it up manually. You will also want to frame your shot in realtime. There is really no need to estimate a height - just set the bird to frame your shot and go from there.

    If your concern is RTH height, you can set a high value and then adjust after flying and reading the altitude values.

    If you really need to guess, a good rule of thumb for buildings is 10ft per story. A 5 story building will be about 50ft tall. That is a generations and if you are flying in some autonomous mode, you should really use a more accurate tool (such as personal observation while flying and getting the readings from the app).