How Do I Use The Camera to Estimate the Height of an Object?

[GadgetGuy]

The OP's original question reminds me of an old joke.

An engineer, an accountant, and a salesman were asked to measure the height of a building. After three days, they all presented their results.

The engineer said, "the height of the building is 82 feet, plus or minus a foot. I measured using a transit and used basic trigonometry."

The accountant than gave his answer, "what height do you want it to be?"

The salesman then presented his results: "the building is 82.73 feet high, exactly."

The people running the contest were stunned: "How can you be so sure?"

The salesman said, "I found the janitor who knew where the building plans were kept. I gave him twenty bucks and he let me photograph the original blueprints."

Hopefully, it wasn't a government building, where the building contractor decided the results were "good enough for government work", even though not to specs!

 

[tfrank48]

I hate to point out the obvious, but why don't you just use your eyes to lower the drone to just above the highest tree instead of using the camera?

my thoughts also ...

 

[Carb63]

Yes that’s about how gov’t works. Lol.

 

[Carb63]

This gov’t. Sorry I couldn’t resist. To funny.